Heating Underwear Yarn For Knitted

Supply Ability

Supply Ability     10000 Kilogram/Kilograms per Week

Packaging & Delivery

Packaging Details   66cm*33.5cm*42.5cm

Lead Time:

Q: What kinds of heating yarn are there? What are the principles?

A:

Heating yarn mainly has the following four different heating principles:

The use of far-infrared heating raw materials: the far-infrared ceramic particles are integrated into the spinning process to form a new type of heating fiber spun into knitting yarn. This material has the function of absorbing and emitting far infrared rays, and can emit 4~14μm far infrared rays at normal temperature and low temperature.
A special process is used to change the internal structure of the yarn: a hollow layer is formed inside the yarn, which uses the physical principle of hollow insulation.
Yarn hygroscopic and hygroscopic: yarn constantly hygroscopic and hygroscopic, absorbing water in the air and water vapor discharged by the human body, resulting in physical reactions to achieve hygroscopic and heating effects.
Some heating potion is mixed into the yarn for blending: the yarn also has the function of heating.
The above is the type of heating yarn and its principle, for reference only, it is recommended to consult the yarn supplier to obtain more comprehensive and accurate information.

Q:What are the standards of heating yarn in the world?

A:

Heating yarn in the world has the following standards:

Japan's heating standards: Japan's heating underwear requirements are very strict, stipulates that only meet the three elements of the heating of the fiber material can be called heating fiber, while the heating performance of the fiber needs to meet the following two conditions: first, at room temperature, the heat of the fiber material is greater than 3.5 joules/gram, and the heat of the fiber material is greater than the moisture absorption.
Heating standards in the United States: Part D of the ASTM F1868-2003(R2010) standard of the American Society for Testing Materials specifically specifies the test methods and performance indicators of self-heating fabrics.
China's heating standards: In the "Knitted sportswear industry Standard FZ/T 73033-2019" issued by the China Knitting Industry Association, provisions are made for the thermal performance and hygrothermal performance of knitted sportswear and knitted underwear.
In addition, there are some international standards, such as ISO, AATCC, etc., these standards also involve the relevant requirements and test methods of heating yarn.

Q:What problems should we pay attention to in the production process of heating yarn?

A:

Heating yarn in the production process need to pay attention to the following problems:

Material selection: Yarn materials with heating properties should be selected, such as far infrared fiber, hygroscopic heating fiber, carbon fiber, etc. These materials have better thermal performance and comfort, and need to ensure their safety.
Production process: to choose the appropriate spinning process and weaving process to ensure the quality and stability of the yarn. At the same time, it is necessary to control the density, thickness, elasticity and other parameters of the yarn to ensure its heating performance and comfort.
Use of additives: In the production process, try to avoid the use of additives, so as not to affect the heating performance and safety of the yarn.
Inspection and quality control: In the production process, the quality and performance of the yarn should be strictly controlled, and the necessary inspection and testing should be carried out to ensure that it meets the relevant standards and customer requirements.
Safety guarantee: To ensure that the yarn does not contain harmful substances and odors, and to ensure that it will not produce static electricity and radiation and other safety hazards during use.
Storage and use precautions: to store and use the yarn correctly, avoid high temperature, humidity, light and other factors on its quality and performance, and pay attention to avoid excessive wear and high temperature ironing and other operations during use.
In short, the heating yarn in the production process need to strictly control the material selection, production process, additive use, testing and quality control, safety assurance, storage and use precautions and other aspects of the problem to ensure that its quality and performance meet the relevant standards and customer requirements.