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Insulation Crepe Paper

 

What is Insulation Crepe Paper?

 

 

Insulation crepe paper is a lightweight, flexible paper product specifically engineered for use as an electrical insulator. It is made from high-quality cellulose fibers that are treated with heat-resistant varnishes to provide both mechanical support and electrical insulation within electrical apparatus. The crepe texture imparts a distinctive crinkled appearance and feel to the paper, which helps to increase its surface area, allowing for better adherence to irregular surfaces and improved flexibility for winding or wrapping around components.

 

 
 
How to Store Insulation Crepe Paper？

Proper storage is crucial to maintaining the quality and performance of insulating crepe paper. Here are some guidelines to follow:

Store in a dry environment

Moisture can degrade the insulation properties of crepe paper. Therefore, it should be stored in a dry environment, away from direct sunlight and excessive humidity.

Avoid extreme temperatures

Extreme temperatures can impact the integrity of the paper. Store it in a temperature-controlled area, avoiding exposure to extreme heat or cold.

Protect from physical damage

Ensure that the crepe paper is not subjected to any physical damage during storage. Avoid placing heavy objects on top of the rolls and protect them from sharp edges or rough surfaces.

Use appropriate packaging

Store the crepe paper in its original packaging or wrap it in polyethylene sheets to prevent dust accumulation and potential damage.

 

 
 
Application Scenarios of Insulation Crepe Paper
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Transformer Insulation:

Insulating crepe paper is commonly used in transformers for layer insulation, covering the winding conductors. Its flexibility and mechanical strength make it an ideal choice for this critical application.

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Motor Insulation:

Motors generate heat during operation, and effective insulation is crucial. Insulating crepe paper is used as slot liners and phase insulation in motors, providing both electrical and thermal protection.

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Cable Insulation:

Electrical cables need insulation to prevent current leakage and ensure safe operation. Insulating crepe paper is often used as a layer of insulation within cable constructions, providing efficient electrical insulation.

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High-Voltage Applications

In high-voltage systems, insulation is paramount to ensure safety. Insulating crepe paper is widely employed in high-voltage applications, such as power transmission lines and switchgear, due to its high dielectric strength and thermal resistance

 

 
 
Process Characteristics Of Insulating Crepe Paper
 

Insulating crepe paper is made from pure wood pulp fiber, and no additional adhesive is added. The production process is the first copy by weaving cloth, and then pressed into cardboard. Because this board has high chemical purity, it is especially suitable for motor and capacitor, especially for oil immersed transformers.

 

Due to the use of special molding and pressing procedures in its manufacturing process, high densification and dimensional stability of the insulation crepe paper are ensured. Because of its good mechanical performance, it can also be processed into the fixed parts and spacing parts of the live part of the transformer. Under the condition of short circuit, because of its good volume elasticity, it can safely withstand the huge mechanical stress in transformer.

 

Because insulation board products and sheets are superior in mechanical strength and oil immersion performance, they are widely used in oil immersed power transformers and distribution transformers. Insulating crepe paper has both mechanical and electrical characteristics after immersion. This composite property can not be achieved by other insulating materials.

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Reeling And Packaging

 

 
 
Insulation properties of crepe paper

Insulation strength of crepe paper

Crepe paper is a material made of multiple layers of cardboard. Its fibers are staggered to form certain gaps. These gaps make the crepe paper have good elasticity and load-bearing capacity. At the same time, these gaps can also form a special insulating layer, which enhances the insulation performance of crepe paper.
The insulation strength of crepe paper mainly depends on its thickness and density. Generally speaking, the thicker the crepe paper is and the higher the density is, the better its insulation strength is. Therefore, when using crepe paper as an insulating material, it is necessary to select the corresponding thickness and density according to the specific application requirements.

Electric field distribution characteristics

Under high electric fields, the electric field distribution characteristics of crepe paper are different from other insulating materials. Due to its special texture, crepe paper will produce uneven electric field distribution under electric fields, causing deformation and electrical aggregation of the insulating layer, thereby making the uniformity of the electric field distribution worse. Therefore, when using crepe paper as an insulating material under high voltage, it is necessary to pay attention to the particularity of its electric field distribution to avoid insulation failure due to excessively strong electric fields.

Application fields of crepe paper

Due to its good insulation properties and high load-bearing capacity, crepe paper is widely used in packaging, filling and protecting electronic products. Common applications include battery packaging, circuit board filling, display screen protection, etc., which can effectively protect the safety and stability of electronic products.

 
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About us
20Years of experience
in one-stop service

Hangzhou Weshare Import & Export Co., Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials, and consulting companies. Weshare was founded in 2005 by one specialized sales in transformer accessories and one electrical-electronics engineer who has wide experience in the electromechanical sector.

 

The core competence of Weshare lies in the development, manufacturing and distribution of conducting and insulating products for the electrical insulation systems of electrical motors, transformers, and generators. The main products including electrical insulation paper, DDP Paper, DMD prepreg materials, aluminum foil shielding paper, electrician with a soft composite material, insulation board, molding insulation pieces, crepe paper tubes, As well as a series of accessories required for transformers etc.

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Our Serve
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- We have vertical setup， so we can ensure price, quality, and lead time.
- We are a manufacturing vendor and we invest 12% of profit into R&D.
- We can make Time and Action Calendar 1 day after PO.
- We can give out CAP within 12 hours.
- We supply a wide range of transformer components and insulation materials.
- We have a team with 20 years of experience to serve our customers.

 
 
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The products are exported to East of Asia, North of Europe ,The Mid East, South of American, Egypt and East of Africa，and are matched by more than 600 domestic transformer and transformer manufacturers, and are well received by users at home and abroad.

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FAQ

 

Q: How durable is crepe paper?

A: Crepe papers prevent scratches and damage thanks to their thick strength. Since its thick texture prevents the products from being damaged, it is often used as a protector between products.

Q: What is the thickness of insulation paper?

A: Electrical Insulating Paper
Polyester film's high electrical & mechanical strength are complemented by good impregnating properties of the polyester fleece. Specifications: Thickness: 7 mil / 10 mil / 15 mil / 20 mil.

Q: How good is paper as an insulator?

A: As the thermal conductivity of paper is low, we can conclude that paper is a good insulator. Paper reduces the convection, conduction and radiation of heat and therefore it is a good insulator of heat.

Q: What is paper insulation used for?

A: Insulation paper is a thin, flexible, high-temperature material used in industrial processing applications where heat management is critical. It provides thermal protection up to 3000°F (1600°C) and is easily adaptable to complex equipment geometries.

Q: What does the paper on insulation do?

A: The facing paper on the insulation blocks moisture from condensing (changing from a vapor to a liquid) on the insulation. If installed incorrectly, moisture can become trapped between the facing and cause mold, rotting, and reduced R-value.

Q: Is the paper on insulation a vapor barrier?

A: What is the difference between unfaced and Kraft-faced insulation and how is it installed? Unfaced means the insulation lacks a vapor retarder (paper or plastic facing). Kraft-faced insulation includes a paper vapor retarder, which helps prevent mold and mildew.

Q: What is the thickness of insulation paper?

A: Electrical Insulating Paper
Polyester film's high electrical & mechanical strength are complemented by good impregnating properties of the polyester fleece. Specifications: Thickness: 7 mil / 10 mil / 15 mil / 20 mil.

Q: Why is insulation paper used in motors?

A: Insulating paper has high tear strength, low elongation, and good insulation, so it is widely used as an insulating material in motors, cables, capacitors and transformers. It is also the main component of insulating materials such as laminates, composites and prepregs.

Q: Should insulation paper face in or out?

A: The insulation should always face the warm-in-winter side. Use faced insulation with the paper facing the heated living space. So, in cold climates, it should face the interior; in hot, humid climates, it should face the exterior.

Q: What is insulation paper made of?

A: Cellulose Insulation Material
Cellulose insulation is made from recycled paper products, primarily newsprint, and has a very high recycled material content, generally 82% to 85%. The paper is first reduced to small pieces and then fiberized, creating a product that packs tightly into building cavities.

Q: What is the purpose of crepe paper?

A: Crêpe paper - Wikipedia
Crêpe paper is popular for streamers and other party decorations. Props and costume accessories can be made of crêpe paper. It can be soaked in a small amount of water to create a dye for Easter eggs, white cardstock, and other materials.

Q: Why is toilet paper a good insulator?

A: As the thermal conductivity of paper is low, we can conclude that paper is a good insulator. Paper reduces the convection, conduction and radiation of heat and therefore it is a good insulator of heat.

Q: How good is paper as an insulator?

A: Is Bubble Wrap A Better Insulator Than Paper in UK?
As the thermal conductivity of paper is low, we can conclude that paper is a good insulator. Paper reduces the convection, conduction and radiation of heat and therefore it is a good insulator of heat.

Q: Is the paper on insulation a vapor barrier?

A: What is the difference between unfaced and Kraft-faced insulation and how is it installed? Unfaced means the insulation lacks a vapor retarder (paper or plastic facing). Kraft-faced insulation includes a paper vapor retarder, which helps prevent mold and mildew.

Q: Is paper insulation good?

A: What Is Cellulose Insulation? Pros and Cons
Cellulose insulation certainly has advantages: It's a dense product, so it generally provides high heat resistance. Blown-in insulation is useful in most application areas. It's sustainably made from recycled material and organic matter.

Q: Why is there paper on the back of insulation?

A: Which Way to Face Insulation
The facing paper on the insulation blocks moisture from condensing (changing from a vapor to a liquid) on the insulation. If installed incorrectly, moisture can become trapped between the facing and cause mold, rotting, and reduced R-value.

Q: How long does paper insulation last?

A: 30 years
Cellulose Insulation--Made from recycled paper, this insulation does a spectacular job of keeping the house temperature controlled. With a lifespan that can last up to 30 years, it's a green and effective choice.

Q: Which way should the paper face on insulation?

A: Kraft-faced insulation should be installed in exterior walls, exterior basement walls, and attic ceilings by pressing the product into the wall cavity with the paper side facing outward, towards the installer. The insulation should be snug in the cavity, but not compressed.

Q: Can insulation paper grow mold?

A: Over time, given the right conditions, mold can grow in fiberglass. Some forms of fiberglass insulation can be covered or “faced” with paper products. This paper is often a food source for mold and can be a problem if installed directly against wet areas (like basement or crawlspace walls).

Q: Is crepe paper good for the environment?

A: Renewable and sustainable (Crepe paper is made of cellulose which comes from 30-year old trees. Suppliers of cellulose replace one tree for every tree cut down.) Compatible with Steam, EO Gas and Gamma Radiation sterilization processes.

As one of the leading insulation crepe paper suppliers in China, we warmly welcome you to wholesale high-grade insulation crepe paper made in China here from our factory. All our products are with high quality and competitive price.

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