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Changshu City Liangyi Tape Industry Co., Ltd.
Changshu Liangyi Tape Industrial Co., Ltd. is headquartered in the northern area of Zhitang Industrial Park, Changshu City, Jiangsu Province,China. The company has an annual production capacity of 40 million square meters of industrial adhesive tape.The company's products are industrial insulating tapes, the main products are polyester Mylar tape, PET non-woven composite margin tape, rubber type margin tape, electrical tape, high temperature polyimide tape, green silicone tape, transparent ...
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Lastest company news about Electrical Insulation Tape for EV Motors and Battery Systems
Electrical Insulation Tape for EV Motors and Battery Systems

2026-10-12

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Electric vehicles rely on battery systems, traction motors, and power electronics. These components have different electrical, thermal, and mechanical requirements. Electrical insulation tape can help provide insulation, protect selected components, and secure materials during manufacturing. Typical applications include: Electric motor winding insulation Coil wrapping and lead protection Battery component insulation Busbar edge protection Insulation material fixation Electrical component assembly The appropriate tape depends on its specific function. Tape used for permanent electrical insulation should not automatically be treated as suitable for every battery or high-voltage application. 1. Insulation Tape for EV Motors Electric vehicle traction motors operate under demanding conditions, including temperature changes, vibration, and electrical stress. Depending on the motor design, insulation tape may be used for: Winding and coil wrapping End-winding insulation Lead protection Insulation material fixation Mechanical reinforcement PET tape can be considered for applications requiring thin, dimensionally stable insulation. PI tape may be suitable for applications with more demanding temperature requirements. For some motor applications, fiberglass cloth tape can provide additional mechanical strength. Material selection should account for the motor design, voltage requirements, operating temperature, and manufacturing process. 2. Insulation Tape for EV Battery Systems Battery systems contain cells, modules, busbars, and electrical connections that may require different insulation or protection materials. Depending on the design, adhesive tape may be used for: Electrical separation between selected components Insulation of suitable busbar areas Protection of edges against abrasion Fixation of insulation materials Temporary masking during manufacturing Not every tape is suitable for direct contact with battery components. Requirements such as dielectric performance, chemical compatibility, thermal exposure, and flame behavior should be confirmed for the intended application. 3. Common Tape Materials for EV Applications Tape Type Potential Application Key Consideration PET / Mylar Tape Component insulation and coil wrapping Thickness, dielectric performance, dimensional stability PI / Kapton Tape Selected higher-temperature insulation applications Thermal performance and adhesive compatibility PET Composite Non-Woven Tape Composite insulation and component protection Structure, flexibility, mechanical properties PET Silicone Tape Selected applications requiring silicone adhesive Adhesion and temperature exposure Fiberglass Cloth Tape Reinforcement and abrasion protection Mechanical strength and substrate compatibility These materials are not interchangeable. The final choice depends on the tape construction and the requirements of the specific component. 4. Key Performance Requirements Electrical Performance Depending on the application, engineers may need to evaluate breakdown voltage, dielectric strength, insulation resistance, and other relevant electrical properties. Test conditions matter. A breakdown voltage result obtained for one thickness or construction should not be assumed to apply to another. Temperature Resistance Consider both continuous operating temperature and short-duration process exposure. The backing material and adhesive may respond differently to heat. The complete tape construction should therefore be evaluated under the actual conditions. Mechanical Strength During production and vehicle operation, insulation materials may experience tension, vibration, abrasion, and thermal cycling. The tape should maintain the required integrity throughout the intended process and service environment. Chemical Compatibility Some EV motor applications may expose tape to oils, lubricants, cleaning agents, or other chemicals. If exposure is expected, test the actual tape construction against the relevant chemicals and substrate. Manufacturing Compatibility For automated production, the tape must also feed, unwind, slit, or die-cut reliably. Accurate dimensions, clean edges, stable roll shape, and consistent adhesion help reduce manufacturing interruptions. 5. How to Select the Right EV Insulation Tape Before choosing a product, define the application and its critical requirements. Selection Factor Questions to Confirm Application Motor, battery module, busbar, or component protection? Electrical What insulation performance is required? Temperature What operating and process temperatures apply? Mechanical Is abrasion resistance or reinforcement required? Chemical Will the tape contact oils or cleaning agents? Material PET, PI, composite non-woven, or fiberglass cloth? Adhesive Is acrylic, silicone, or another adhesive system required? Dimensions What thickness, width, and length are needed? Processing Manual application, automatic winding, or die cutting? For safety-critical applications, material selection should be supported by the relevant component-level validation and insulation-system requirements. 6. Customized Electrical Insulation Tape from LY Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer specializing in industrial electrical insulation tapes. Our production capabilities cover: Adhesive Coating → Rewinding → Slitting → Inspection → Packing Our product range includes: PET / Mylar insulation tape PI / Kapton tape PET composite non-woven tape PET silicone tape Fiberglass cloth tape for electrical insulation We can customize suitable products according to required widths, thicknesses, lengths, colors, adhesive systems, and roll specifications. For automated manufacturing, we also focus on slitting accuracy, winding density, flatness, and finished-roll stability. Conclusion Electrical insulation tape can support different manufacturing requirements in EV motors and battery systems, but each application requires its own material selection and validation. Consider electrical performance, temperature, mechanical strength, chemical compatibility, adhesive properties, and manufacturing requirements before selecting a tape. Contact LY with your application, required material, thickness, width, length, and quantity to discuss a customized electrical insulation tape solution.
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Lastest company news about The Role of Insulation Tape in Electric Motor Manufacturing
The Role of Insulation Tape in Electric Motor Manufacturing

2026-10-12

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Electrical insulation tape plays an important role in electric motor production. Depending on the design, it can help insulate winding components, secure insulation materials, protect conductors, and support coil assembly. The correct tape depends on the motor structure, electrical requirements, operating temperature, and manufacturing process. Common applications include: Motor winding and coil wrapping End-winding insulation Lead and connection protection Insulation material fixation Coil bundling and reinforcement Protection against abrasion during assembly 1. Winding and Coil Wrapping During motor manufacturing, insulation tape may be wrapped around coils or winding components to provide electrical separation and protect the insulation structure. PET / Mylar tape is an option for applications requiring thin, dimensionally stable insulation. PI tape may be considered when higher-temperature performance is required. Tape thickness and flexibility should match the coil design and available space. 2. End-Winding Insulation The end-winding area can have curved shapes and limited space. The tape must conform to the winding without excessive wrinkling or lifting. Important properties include: Flexibility and conformability Electrical insulation performance Adhesion to the application surface Mechanical strength Compatibility with process temperature The specific material should be selected according to the motor's insulation system. 3. Lead Protection and Insulation Fixation Tape may be used to secure insulation materials or protect selected areas around wire connections and lead exits. PET tape, PI tape, and fiberglass cloth tape can be considered for different requirements. Fiberglass cloth tape is particularly relevant when mechanical strength and abrasion resistance are important. Adhesion should be tested on the actual substrate because performance can vary between insulation films, wires, and other materials. 4. Common Insulation Tape Materials Tape Type Main Characteristics Potential Applications PET / Mylar Tape Thin, dimensionally stable Coil wrapping and insulation PI / Kapton Tape Suitable for demanding temperature requirements High-temperature insulation PET Composite Non-Woven Tape Flexible composite construction Insulation and protection PET Silicone Tape Silicone adhesive system Selected temperature-sensitive applications Fiberglass Cloth Tape Mechanical strength and abrasion resistance Reinforcement and coil insulation These are general guidelines. Actual suitability depends on the tape construction, adhesive, and motor design. 5. Why Tape Quality Matters in Automated Production Motor manufacturers may use automatic winding, taping, and assembly equipment. In these processes, inconsistent tape dimensions or poor roll quality can interrupt production. Key requirements include: Accurate slitting width Clean, uniform edges Stable winding density Good roll flatness Consistent unwinding tension Reliable adhesive performance Poor rewinding can cause deformation or uneven feeding. For narrow tapes used on automatic equipment, finished-roll quality should therefore be evaluated alongside electrical and mechanical properties. 6. How to Select Insulation Tape for Motor Manufacturing Before choosing a tape, confirm the following: Selection Factor What to Check Application Winding, lead protection, or insulation fixation Temperature Operating and processing conditions Electrical performance Breakdown voltage and other required specifications Material PET, PI, composite non-woven, or fiberglass cloth Adhesive Adhesion and process compatibility Dimensions Total thickness, width, and length Production method Manual or automatic application Roll quality Flatness, winding density, and unwinding stability For applications involving varnish impregnation, resin curing, or prolonged heat exposure, confirm compatibility with the actual process before selecting the tape. 7. Customized Motor Insulation Tape from LY Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer of industrial electrical insulation tapes. Our production capabilities cover: Adhesive Coating → Rewinding → Slitting → Inspection → Packing Our product range includes PET / Mylar tape, PI / Kapton tape, PET composite non-woven tape, PET silicone tape, and fiberglass cloth tape for electrical insulation. We can customize suitable tape products according to required widths, thicknesses, lengths, colors, adhesive systems, and roll specifications. For automated production, we also focus on slitting accuracy, roll flatness, winding density, and finished-roll stability. Conclusion Insulation tape supports several stages of electric motor manufacturing, from coil wrapping and winding insulation to lead protection and assembly. The right product must match the motor's electrical and thermal requirements as well as its mechanical and manufacturing conditions. Looking for motor insulation tape? Contact LY with your required material, thickness, width, length, application, and estimated quantity to discuss a suitable solution.
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Lastest company news about Electrical Insulation Tape for Motors and Generators
Electrical Insulation Tape for Motors and Generators

2026-10-08

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Electric motors and generators contain windings that operate under electrical, thermal, and mechanical stresses. Electrical insulation tape can be used to provide insulation between conductive components, protect winding structures, and secure insulation materials during manufacturing. Depending on the design, tape may be used for: Coil and winding insulation End-winding insulation Slot insulation support Layer separation Lead insulation Coil wrapping Insulation material fixation Winding reinforcement The correct tape depends on the insulation system and the manufacturing process. Common Applications 1. Motor Winding Insulation Insulation tape can be applied around coils or winding components to provide electrical separation. PET / Mylar tape is a common option when a thin, dimensionally stable insulating material is required. For applications with higher thermal requirements, PI tape or other high-temperature constructions may be considered. 2. End-Winding Insulation The end-winding area can require flexible insulation that can conform to curved or irregular surfaces. The tape should provide suitable: Flexibility Adhesion Electrical insulation Mechanical stability Temperature resistance PI and other flexible electrical insulation tapes are commonly used for demanding end-winding applications. 3. Coil Wrapping Tape can be used to wrap coils and secure insulation layers during motor or generator assembly. For these applications, consistent thickness and stable unwinding are important because the tape may be applied under controlled tension. 4. Insulation Material Fixation Adhesive tape can also be used to hold materials such as slot liners or other insulation components in position during assembly. High initial tack can be useful for some assembly processes, while other applications may require long-term temperature and electrical stability. Common Tape Materials Tape Type Main Characteristics Typical Application PET / Mylar Thin, stable, good electrical insulation Coil and winding insulation PI / Kapton High-temperature insulation capability End-winding and high-temperature applications PET Composite Non-Woven Flexible composite structure Reinforced insulation and protection PET Silicone Silicone adhesive system Selected high-temperature applications Fiberglass Cloth High strength and mechanical support Reinforcement and insulation The actual performance depends on the complete tape construction, including backing, adhesive, thickness, and test conditions. PET Tape for Motors PET insulation tape can be a practical choice for motor applications where thin electrical insulation and dimensional stability are required. It can be used for applications such as: Coil wrapping Outer winding insulation End-winding insulation Layer separation Insulation material fixation PET tapes are available in different thicknesses, colors, widths, and adhesive systems. Industry suppliers also offer PET insulation tapes specifically for motor and coil applications. PI Tape for High-Temperature Applications PI / Kapton tape is generally selected when the application requires higher thermal performance than conventional PET tape can provide. It can be considered for: High-temperature motor windings Generator insulation End-winding insulation Electrical component protection However, the temperature capability of an adhesive tape is determined by the complete construction. The adhesive must also be suitable for the intended temperature and application environment. What Should You Consider When Selecting Motor Insulation Tape? Temperature First determine the actual operating and processing temperature. Do not select a tape only according to the temperature rating of its backing material. The adhesive and complete insulation construction also need to be considered. Electrical Requirements Depending on the motor design, requirements may include: Breakdown voltage Dielectric strength Insulation resistance Insulation thickness The test method should be confirmed when comparing different suppliers. Mechanical Requirements Some motor applications require the tape to withstand: Winding tension Vibration Abrasion Coil movement Assembly forces For these applications, tensile strength and resistance to mechanical damage may be important. Adhesion Adhesion should be evaluated on the actual substrate. The tape may contact insulation film, copper wire, coil materials, or other insulation components. A tape that performs well on a standard test plate may behave differently on the actual application surface. Width and Thickness Motor insulation tape is frequently converted into customized narrow widths. Accurate slitting is important for applications where the tape must fit a specific winding or coil dimension. Motor Insulation Tape for Automatic Manufacturing Automatic winding and assembly equipment places additional requirements on tape converting quality. The finished roll should ideally have: Consistent width Clean edges Uniform winding density Stable roll shape Good flatness Consistent unwinding For narrow tapes, poor winding quality can cause wrinkles, deformation, feeding instability, or positioning problems during machine application. Therefore, motor insulation tape should be evaluated as both a material and a finished roll. How to Choose the Right Tape A practical selection process is: Application → Temperature → Electrical Requirements → Mechanical Requirements → Backing Material → Adhesive → Thickness → Width → Application Method → Roll Quality Before requesting a quotation, provide: Motor or generator application Tape material Thickness Width Length Adhesive requirement Temperature requirement Electrical requirements Manual or automatic application Estimated quantity This information helps the manufacturer recommend a suitable construction and provide more accurate samples. Motor and Generator Insulation Tape from LY Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer of industrial electrical insulation tapes. Our production process covers: Adhesive Coating → Rewinding → Slitting → Inspection → Packing Our product range includes: PET / Mylar insulation tape PI / Kapton tape PET composite non-woven tape PET silicone tape Fiberglass cloth tape for electrical insulation Customized widths, thicknesses, lengths, colors, and roll specifications are available for suitable motor and generator applications. For automatic winding processes, we also focus on slitting accuracy, roll flatness, winding density, and finished-roll stability. Conclusion Electrical insulation tape is used in motors and generators for more than basic insulation. It can also support coil wrapping, end-winding insulation, layer separation, and insulation material fixation. The right tape should match the application's temperature, electrical, mechanical, adhesive, dimensional, and manufacturing requirements. If you are sourcing motor or generator insulation tape, send us your material, thickness, width, length, application, and quantity. LY can provide a customized electrical insulation tape solution for your winding process.
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Lastest company news about Transformer Margin Tape: How It Works and How to Select It
Transformer Margin Tape: How It Works and How to Select It

2026-10-08

.gtr-container-f7e9d2 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; max-width: 100%; box-sizing: border-box; } .gtr-container-f7e9d2 h2 { font-size: 18px; font-weight: bold; color: #000000; margin-top: 25px; margin-bottom: 15px; padding-bottom: 5px; border-bottom: 1px solid rgba(0, 0, 0, 0.1); } .gtr-container-f7e9d2 h3 { font-size: 16px; font-weight: bold; color: #000000; margin-top: 20px; margin-bottom: 10px; } .gtr-container-f7e9d2 p { font-size: 14px; margin-bottom: 10px; text-align: left !important; } .gtr-container-f7e9d2 strong { color: #000000; } .gtr-container-f7e9d2 ul { list-style: none !important; padding-left: 25px; margin-bottom: 10px; } .gtr-container-f7e9d2 ul li { position: relative; font-size: 14px; margin-bottom: 8px; padding-left: 15px; list-style: none !important; } .gtr-container-f7e9d2 ul li::before { content: "•" !important; position: absolute !important; left: 0 !important; color: #000000; font-size: 18px; line-height: 1; } .gtr-container-f7e9d2 ol { list-style: none !important; padding-left: 25px; margin-bottom: 10px; } .gtr-container-f7e9d2 ol li { position: relative; font-size: 14px; margin-bottom: 8px; padding-left: 25px; list-style: none !important; } .gtr-container-f7e9d2 ol li::before { content: counter(list-item) "." !important; position: absolute !important; left: 0 !important; color: #000000; font-size: 14px; font-weight: bold; width: 20px; text-align: right; } .gtr-container-f7e9d2 .gtr-table-wrapper { overflow-x: auto; margin-top: 20px; margin-bottom: 20px; border: 1px solid rgba(0, 0, 0, 0.1); border-radius: 4px; } .gtr-container-f7e9d2 table { width: 100%; border-collapse: collapse !important; border-spacing: 0 !important; font-size: 14px; min-width: 600px; } .gtr-container-f7e9d2 table th, .gtr-container-f7e9d2 table td { border: 1px solid #000000 !important; padding: 10px 12px !important; text-align: left !important; vertical-align: top !important; word-break: normal; overflow-wrap: normal; } .gtr-container-f7e9d2 table th { background-color: rgba(0, 0, 0, 0.05); font-weight: bold; color: #000000; } .gtr-container-f7e9d2 table tr:nth-child(even) { background-color: rgba(0, 0, 0, 0.02); } @media (min-width: 768px) { .gtr-container-f7e9d2 { padding: 20px 30px; } .gtr-container-f7e9d2 h2 { font-size: 20px; margin-top: 30px; margin-bottom: 20px; } .gtr-container-f7e9d2 h3 { font-size: 18px; margin-top: 25px; margin-bottom: 12px; } .gtr-container-f7e9d2 p { margin-bottom: 12px; } .gtr-container-f7e9d2 ul, .gtr-container-f7e9d2 ol { margin-bottom: 15px; } .gtr-container-f7e9d2 table { min-width: auto; } } What Is Transformer Margin Tape? Transformer margin tape is a narrow electrical insulation tape used around the edges of transformer windings to create a controlled insulating margin. In a typical winding structure, the margin extends the insulation path between conductive parts. This helps maintain the required electrical separation while allowing the winding to be manufactured within the available bobbin or coil width. Margin tape is therefore not simply used for bonding. Its width, position, thickness, and winding accuracy can directly affect the insulation structure. How Does Margin Tape Work? A transformer winding may contain primary, secondary, bias, and other winding sections. Margin tape can be positioned along the sides of the winding area so that the conductive winding does not extend directly to the edge. A simplified structure is: Bobbin → Margin Tape → Winding → Insulation Layer → Winding The actual design depends on the transformer construction and applicable insulation requirements. For margin-wound transformer designs, the margin helps establish the required creepage path between winding sections. Why Is Margin Width Important? Margin width is one of the most important specifications. If the margin is too narrow, the designed insulation distance may not be achieved. If it is unnecessarily wide, it can reduce the available winding area. Therefore, margin width should be determined according to the transformer design and required insulation distance rather than simply selecting the widest tape available. For example, transformer designs may use symmetrical margins on both sides of the winding. The effective winding area is therefore affected by the margin width. Required margin width → Available winding width → Actual winding position These dimensions should be considered together during transformer design. Common Materials for Transformer Margin Tape PET / Mylar Margin Tape PET film is widely used for electrical insulation because of its combination of dimensional stability, mechanical strength, and electrical insulation properties. PET / Mylar margin tape can be slit into narrow customized widths for transformer winding applications. It is suitable for applications where thin and stable insulation material is required. PET Composite Non-Woven Margin Tape A PET composite non-woven structure can combine a PET film with a non-woven insulation layer. This type of construction can provide additional flexibility and mechanical support compared with a single film structure. It can be considered for transformer applications where a composite insulation structure is preferred. PI / Kapton Margin Tape PI tape can be selected when the application requires higher-temperature performance. However, the actual temperature capability depends on the complete tape construction, including the polyimide film and adhesive system. Key Specifications When Buying Margin Tape 1. Width Width is usually one of the most important requirements for margin tape. Customers should specify the required width based on the transformer design and winding structure. For narrow-width products, consistent slitting is especially important. 2. Thickness The total thickness should be clearly defined. When requesting a quotation, confirm whether the specification refers to: Base film thickness Composite material thickness Adhesive thickness Total tape thickness This avoids confusion when comparing different suppliers. 3. Electrical Performance Depending on the insulation system, customers may specify: Breakdown voltage Dielectric strength Insulation resistance Required insulation thickness The test method and conditions should also be confirmed when comparing technical data from different suppliers. 4. Adhesive If adhesive-backed margin tape is required, adhesive selection should consider: Required tack Peel strength Application substrate Temperature Manufacturing process Long-term stability The adhesive should hold the tape in position without interfering with the transformer insulation system. 5. Winding Quality For automatic winding, finished-roll quality is particularly important. The tape should have: Accurate width Clean edges Stable roll shape Uniform winding density Good flatness Consistent unwinding Poorly rewound narrow tape can cause feeding instability or affect positioning during automatic winding. Margin Tape for Automatic Transformer Winding Automatic winding machines require stable and consistent tape feeding. A narrow margin tape roll may be subjected to tension, acceleration, and repeated changes in winding direction during production. Therefore, the quality of the finished roll can be just as important as the basic material specification. For automatic applications, buyers should evaluate both: Tape Performance + Converting Quality This includes the film or composite material, adhesive, slitting accuracy, rewinding tension, roll flatness, and winding density. How to Choose the Right Margin Tape Before selecting a product, confirm the following: Requirement What to Confirm Application Transformer type and winding position Material PET, composite, PI, etc. Width Required margin width Thickness Total tape thickness Adhesive Adhesive type and adhesion requirement Electrical Breakdown / dielectric requirements Temperature Operating and process temperature Application Manual or automatic winding Roll Length, core, winding density and flatness A practical selection process is: Transformer Design → Required Insulation Margin → Tape Width → Material → Thickness → Adhesive → Electrical Requirements → Winding Method → Finished Roll Customized Transformer Margin Tape from LY Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer specializing in industrial electrical insulation tapes. Our production process covers: Adhesive Coating → Rewinding → Slitting → Inspection → Packing We manufacture: PET / Mylar insulation tape PI / Kapton tape PET composite non-woven tape PET silicone tape Fiberglass cloth tape for electrical insulation For transformer margin tape, customized width, thickness, length, adhesive, color, and roll specifications can be provided according to the application. Our converting process also focuses on narrow-width slitting, roll flatness, winding density, and stable finished-roll quality for manual and automatic applications. Conclusion Transformer margin tape helps establish a controlled insulating margin around transformer windings. The correct product should be selected according to the transformer design, required insulation distance, tape width, thickness, electrical requirements, adhesive, and winding process. For automatic winding applications, slitting accuracy and finished-roll quality should also be considered. Looking for customized transformer margin tape? Send us your required width, thickness, material, length, application, and quantity. LY can provide a suitable electrical insulation tape solution for your transformer winding application.
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Lastest company news about PET Composite Non-Woven Tape for Electrical Insulation
PET Composite Non-Woven Tape for Electrical Insulation

2026-09-29

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PET composite non-woven tape is an electrical insulation tape made by combining a polyester (PET) film layer with a non-woven insulating layer, together with a suitable adhesive system when an adhesive-backed construction is required. The composite structure combines the dimensional stability and dielectric properties of PET film with the flexibility and conformability of non-woven material. This makes PET composite non-woven tape useful for electrical insulation applications where a single film layer may not provide the required combination of flexibility, mechanical protection, and insulation performance. Structure of PET Composite Non-Woven Tape A typical construction may include: PET Film + Non-Woven Insulation Layer + Adhesive Depending on the application, the material structure and adhesive can be customized. The PET layer can provide: Electrical insulation Dimensional stability Mechanical strength Smooth and consistent surface The non-woven layer can provide: Flexibility Conformability Cushioning Additional insulation thickness The final performance depends on the materials, thickness, adhesive system, and manufacturing process. Where Is PET Composite Non-Woven Tape Used? PET composite non-woven tape can be used in various electrical insulation applications. 1. Transformer Insulation The tape can be used for winding insulation, layer separation, component wrapping, and other insulation positions where a composite structure is required. Transformer insulation systems may use different materials according to the specific electrical, thermal, and mechanical requirements of each position. 2. Motor and Coil Insulation PET composite non-woven tape can also be considered for motor and coil applications where flexibility and insulation stability are important. It can be used for: Coil wrapping Winding insulation Component fixing Protective insulation Separation between insulating components 3. Electrical Components The composite structure can also be used in various electrical and electronic components where additional insulation thickness or conformability is required. PET Composite Non-Woven Tape vs PET Film Tape Although both products use PET film, their structures and application characteristics are different. Feature PET Film Tape PET Composite Non-Woven Tape Structure PET film + adhesive PET + non-woven + adhesive Flexibility Good Generally higher Surface Smooth Composite structure Dimensional stability High High, depending on construction Cushioning Limited Better Thickness options Thin to medium Medium and higher constructions Typical use General electrical insulation Composite insulation and wrapping The right choice depends on the insulation position and required tape construction rather than simply the material name. How to Choose PET Composite Non-Woven Tape Before selecting a product, several parameters should be confirmed. Thickness Thickness affects insulation build-up, mechanical protection, and the available space inside the component. Width The tape width should match the winding or assembly process. Narrow tapes may be required for automatic or precision applications. Adhesive The adhesive system should be compatible with the application temperature and the surface being bonded. Electrical Performance Depending on the insulation system, buyers may need to evaluate dielectric strength, insulation resistance, and other electrical properties. Temperature Resistance The complete tape construction should be evaluated under the actual operating and processing temperature. Winding and Converting Quality For automatic applications, consistent slitting, stable rewinding, edge quality, and winding density are also important. Why Manufacturing Quality Matters For composite insulation tapes, the performance of the finished product depends not only on the raw materials but also on the converting process. Important manufacturing controls include: Composite material quality Adhesive coating uniformity Drying and curing Rewinding tension Slitting accuracy Roll winding density Finished-product inspection Poor converting quality can cause problems such as uneven edges, unstable rolls, wrinkles, or inconsistent tape feeding. Customized PET Composite Non-Woven Tape Different electrical components may require different combinations of: PET film thickness Non-woven thickness Total thickness Adhesive type Adhesive thickness Tape width Roll length Core size Color Therefore, customized PET composite non-woven tape can be developed according to the customer's insulation structure and production process. Liangyi Tape — Electrical Insulation Tape Manufacturer Changshu Liangyi Tape Industrial Co., Ltd. is a source manufacturer of electrical insulation tapes with in-house coating, rewinding, and slitting capabilities. Our product range includes: PET / Mylar insulation tape PI / Kapton tape PET composite non-woven tape PET silicone tape Fiberglass cloth insulation tape Transformer barrier tape Transformer margin tape We can provide customized widths, thicknesses, adhesive systems, and roll specifications for transformer, motor, coil, and other electrical insulation applications. Conclusion PET composite non-woven tape combines the advantages of PET film and non-woven insulation materials in one composite construction. It can be considered when an electrical insulation application requires a combination of insulation, flexibility, mechanical stability, and conformability. When selecting the right tape, evaluate the complete construction, adhesive system, thickness, electrical performance, temperature requirements, and converting quality rather than choosing only by the backing material. Looking for customized PET composite non-woven tape for electrical insulation? Contact Liangyi Tape for your application requirements.
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Latest company case about Dual-Layer Kapton Tape for High-Voltage and High-Temperature Insulation
Dual-Layer Kapton Tape for High-Voltage and High-Temperature Insulation

2026-09-17

.gtr-container-x7y3z9 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 20px; max-width: 900px; margin: auto; background-color: #f8f8f8; border-radius: 8px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05); } .gtr-container-x7y3z9 p { margin-bottom: 1em; text-align: left !important; font-size: 14px; } .gtr-container-x7y3z9 strong { color: #000000; } .gtr-container-x7y3z9 em { color: #555; } .gtr-container-x7y3z9 .section-title { font-size: 18px; font-weight: bold; color: #000000; margin-top: 2em; margin-bottom: 1em; padding-bottom: 5px; border-bottom: 2px solid #e0e0e0; } .gtr-container-x7y3z9 .main-title { font-size: 18px; font-weight: bold; color: #000000; text-align: center; margin-bottom: 0.5em; } .gtr-container-x7y3z9 .subtitle { font-size: 14px; font-style: italic; color: #555; text-align: center; margin-bottom: 2em; } .gtr-container-x7y3z9 ul { list-style: none !important; padding-left: 20px; margin-bottom: 1em; } .gtr-container-x7y3z9 ul li { position: relative !important; padding-left: 20px !important; margin-bottom: 0.5em !important; font-size: 14px !important; list-style: none !important; } .gtr-container-x7y3z9 ul li::before { content: "•" !important; color: #000000 !important; position: absolute !important; left: 0 !important; font-size: 1.2em !important; line-height: 1 !important; } .gtr-container-x7y3z9 ol { list-style: none !important; padding-left: 25px; margin-bottom: 1em; } .gtr-container-x7y3z9 ol li { position: relative !important; padding-left: 25px !important; margin-bottom: 0.5em !important; font-size: 14px !important; list-style: none !important; } .gtr-container-x7y3z9 ol li::before { content: counter(list-item) "." !important; color: #000000 !important; position: absolute !important; left: 0 !important; font-size: 1em !important; font-weight: bold !important; width: 20px !important; text-align: right !important; } .gtr-container-x7y3z9 .gtr-table-wrapper { overflow-x: auto; margin-bottom: 1em; border: 1px solid #e0e0e0; border-radius: 4px; } .gtr-container-x7y3z9 table { width: 100% !important; border-collapse: collapse !important; border-spacing: 0 !important; margin-bottom: 1em !important; min-width: 600px; } .gtr-container-x7y3z9 table th, .gtr-container-x7y3z9 table td { padding: 10px 15px !important; border: 1px solid #e0e0e0 !important; text-align: left !important; vertical-align: top !important; font-size: 14px !important; word-break: normal !important; overflow-wrap: normal !important; } .gtr-container-x7y3z9 table th { background-color: #f0f0f0 !important; font-weight: bold !important; color: #000000 !important; } .gtr-container-x7y3z9 table tr:nth-child(even) { background-color: #fdfdfd; } .gtr-container-x7y3z9 table tr:hover { background-color: #f5f5f5; } @media (min-width: 768px) { .gtr-container-x7y3z9 { padding: 30px 40px; } .gtr-container-x7y3z9 .main-title { font-size: 24px; } .gtr-container-x7y3z9 .subtitle { font-size: 16px; } .gtr-container-x7y3z9 .section-title { font-size: 20px; } .gtr-container-x7y3z9 table { min-width: auto; } } CASE STUDY Dual-Layer Kapton Tape for High-Voltage and High-Temperature Insulation A Customized 65 μm Polyimide Insulation Solution Achieving 8 kV Breakdown Voltage 1. Customer Application The customer required a high-performance Kapton tape solution for an electrical insulation application involving demanding voltage resistance and high-temperature conditions. 2. Customer Requirements High breakdown voltage performance. High-temperature resistance requirement: 180°C for 24 hours. A customized insulation tape solution capable of meeting the customer's application requirements. 3. Technical Challenge The existing single-layer Kapton tape had a breakdown voltage of more than 4.5 kV, which did not meet the customer's higher voltage requirement. Existing solutions from other suppliers were unable to provide a suitable solution within the specified timeframe. 4. Innovative Solution: Dual-Layer Kapton Tape Based on the customer's requirements, LY proposed and successfully developed an innovative dual-layer Kapton tape structure. The developed tape consisted of two Kapton film layers bonded together using an adhesive layer between the films. The bottom surface of the inner film was coated with silicone adhesive, which served as the bonding layer for attachment to the customer's product. The total thickness of the developed tape was 65 μm. The dual-layer structure was developed specifically to improve the insulation performance required by the customer. 5. Product Structure Outer Kapton Film Adhesive Bonding Layer between the two films Inner Kapton Film Silicone Adhesive on the bottom surface of the inner film for bonding to the customer's product 6. Product Specification Item Specification / Result Product Dual-Layer Kapton Tape Total Thickness 65 μm Single-Layer Breakdown Voltage >4.5 kV Dual-Layer Breakdown Voltage 8 kV High-Temperature Requirement 180°C for 24 hours (customer requirement) Adhesive Structure Adhesive bonding layer between films; silicone adhesive on the bottom surface of the inner film 7. Testing & Validation The developed dual-layer Kapton tape achieved a breakdown voltage of 8 kV, compared with more than 4.5 kV for the existing single-layer solution. The customer specified a high-temperature requirement of 180°C for 24 hours. The original detailed measurement records for this historical project are no longer available; therefore, this case study does not state a specific measured high-temperature result. The overall customer validation was successful, and the developed product passed the customer's testing and proceeded to batch orders. 8. Project Result Successfully developed a customized dual-layer Kapton tape solution. Achieved a tested breakdown voltage of 8 kV. Addressed the customer's high-voltage insulation requirement. Completed successful customer validation. The project resulted in batch orders. 9. Why Choose LY Source manufacturer with in-house coating, rewinding, and slitting capabilities. Ability to develop customized electrical insulation tape structures. Experience in high-voltage and high-temperature insulation applications. Flexible technical communication and project-based product development. Focus on long-term cooperation and application-oriented solutions. 10. Related Applications High-voltage electrical insulation High-temperature electrical insulation Transformer and motor insulation Electronic component insulation Customized industrial insulation applications 11. Contact Changshu Liangyi Tape Industrial Co., Ltd. (LY)Email: ftrade2@liangyitape.comWhatsApp: +86 13338711561Website: electrical-insulationtape.com
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Latest company case about Yellow Mylar Tape for High-Frequency Transformer Automatic Winding
Yellow Mylar Tape for High-Frequency Transformer Automatic Winding

2026-09-16

Yellow Mylar Tape for High-Frequency Transformer Automatic Winding 5 mm × 132 m PET Electrical Insulation Tape with Flat and Dense Winding Customer Application Industry: Transformer ManufacturingApplication: High-Frequency Transformer InsulationProduct: Yellow Mylar Electrical Insulation TapeSpecification: 5 mm × 132 mColor: YellowApplication Method: Automatic Winding Machine Project Overview A transformer manufacturer required yellow Mylar electrical insulation tape for the automatic winding process of high-frequency transformers. Because the tape was used on an automatic winding machine, the customer had specific requirements for the flatness and winding density of the finished tape rolls. The tape needed to remain flat when placed on a horizontal surface and maintain a dense, uniform winding structure without visible gaps between the tape layers. LY supplied customized 5 mm × 132 m yellow Mylar tape according to the customer’s application requirements. Customer Requirements The customer had two key requirements for the finished tape rolls. 1. Excellent Roll Flatness After the tape was slit and rewound into finished rolls, the roll needed to maintain a flat and stable shape. When placed on a horizontal surface, the finished roll should fit closely against the surface without obvious deformation, lifting or warping. This was important because the tape roll needed to maintain a stable shape during automatic machine operation. 2. Dense and Uniform Winding The customer also required a high and consistent winding density. There could be no obvious gaps between the tape layers, as loose winding could affect the tape’s performance during automatic application. The finished roll needed to have a compact and uniform winding structure from the inner layer to the outer layer. The Challenge The customer’s automatic winding machine included a fan that directed airflow toward the tape during the production process. If there were gaps between the tape layers, the airflow could cause these gaps to become larger. As the gaps expanded, part of the tape could lift or protrude from the roll surface. This created a potential problem during automatic application: Gap between tape layers → Airflow enlarges the gap → Tape layer protrudes → Tape becomes caught between two machine rollers Once the protruding tape became caught between the two rollers, it could interfere with the automatic winding process and affect machine operation. Therefore, the customer required not only suitable adhesive and insulation performance, but also high winding density and excellent roll flatness. Our Solution Based on the customer’s automatic machine application, LY focused on optimizing the rewinding and slitting process to achieve the required finished-roll quality. The key control points included: Roll Flatness Control The rewinding process was controlled to help maintain a flat and stable finished roll. The finished rolls were checked on a horizontal surface to verify that the roll maintained good contact with the surface without obvious deformation or warping. Winding Density Control The rewinding process was controlled to maintain a dense and uniform winding structure. Particular attention was given to preventing loose winding and visible gaps between tape layers. A compact winding structure helps reduce the possibility of airflow entering between the tape layers during automatic machine operation. Slitting Quality Control The tape was precision slit to the customer’s required 5 mm width. The slitting process was controlled to maintain consistent tape width and clean edges, helping ensure stable performance during automatic winding. Product Specification Parameter Specification Product Yellow Mylar Electrical Insulation Tape Backing Material PET / Polyester Film Color Yellow Width 5 mm Length 132 m Adhesive Pressure-Sensitive Adhesive Application High-Frequency Transformer Insulation Application Method Automatic Winding Machine Key Requirement Flatness & Dense Winding Slitting Precision Slitting Roll Specification 5 mm × 132 m Quality Control For this application, conventional tape inspection alone was not sufficient. In addition to standard product inspections, LY paid particular attention to the finished-roll condition. Flatness Inspection The finished tape roll was placed on a horizontal surface to check whether it maintained good contact with the surface. The roll was inspected for: · Deformation · Warping · Lifting · Uneven contact with the horizontal surface Winding Density Inspection The finished roll was visually inspected to ensure that the tape layers were tightly and uniformly wound. Particular attention was given to: · Loose winding · Visible gaps between layers · Uneven winding · Localized protrusion of tape layers Standard Tape Inspection Other key inspection items included: · Thickness · Width · Adhesion / peel strength · Electrical insulation performance · Appearance · Slitting edge quality · Roll winding quality Application Result The 5 mm × 132 m yellow Mylar electrical insulation tape was supplied for use on an automatic winding machine in high-frequency transformer manufacturing. The finished rolls were produced with a flat and dense winding structure according to the customer’s requirements. The controlled winding density helped minimize gaps between tape layers and reduce the risk of tape layers being lifted by airflow during automatic machine operation. The customized roll specification and controlled rewinding process provided a suitable solution for the customer’s automatic winding application. Why Choose LY? Source Manufacturer, Not a Middleman LY is a source manufacturer specializing in industrial electrical insulation tapes. Our manufacturing process includes: Coating → Rewinding → Slitting → Inspection → Packing Because coating, rewinding and slitting are controlled within our manufacturing system, we can adjust production parameters according to different application requirements. For customers using automatic winding equipment, we can focus not only on the basic tape specifications but also on the finished-roll quality and machine application requirements. Customized Electrical Insulation Tape LY provides customized electrical insulation tapes according to customer requirements, including: · PET / Mylar Tape · PI / Kapton Tape · PET Composite Non-Woven Tape · PET Silicone Tape · Fiberglass Cloth Electrical Insulation Tape Customized widths, lengths and roll specifications are available for suitable applications. Applications Yellow Mylar electrical insulation tape can be used in various electrical insulation applications, including: · High-frequency transformer insulation · Transformer winding · Coil insulation · Electrical component insulation · Layer insulation · Barrier insulation · Automatic winding applications Related Products Explore more electrical insulation tape solutions from LY: · PET / Mylar Electrical Insulation Tape · Yellow Mylar Insulation Tape · PI / Kapton Electrical Insulation Tape · PET Composite Non-Woven Tape · PET Silicone Tape · Fiberglass Cloth Electrical Insulation Tape · Transformer Barrier Tape · Margin Tape Looking for Mylar Tape for Automatic Transformer Winding? If you are looking for PET Mylar tape for high-frequency transformer insulation and automatic winding machines, LY can provide customized solutions based on your application requirements. In addition to standard tape properties, we can work with customers on specific requirements for roll flatness, winding density, slitting quality and finished-roll performance. Please send us your: Material + Thickness + Width + Length + Application + Required Quantity Our team can recommend a suitable electrical insulation tape solution for your application. Contact LY for a Customized Transformer Insulation Tape Solution. Email: ftrade2@liangyitape.comWhatsApp: +86 13338711561
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