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Thermosetting acoustical cotton, and its production method

A sound-absorbing cotton and thermosetting technology, which is applied in the field of decorative sound-absorbing materials, can solve the problems of not being environmentally friendly and having no flame-retardant effect, and achieve the effects of good sound-absorbing effect, smooth appearance, and uniform thickness

Active Publication Date: 2011-11-23
广州市豪力佳非织造新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of thermosetting sound-absorbing cotton with good flame-retardant effect and relatively environmentally friendly production process and its production method in view of the insufficient environmental protection and lack of flame-retardant effect in the prior art.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0018] The first specific embodiment of the present invention is a thermosetting sound-absorbing cotton. The thermosetting sound-absorbing cotton is composed of three materials: low-melt cotton, fiber cotton and flame-retardant cotton, and its density is 600g / m 2 , including 120 grams of low-melt cotton, 120 grams of fiber cotton, and 360 grams of flame-retardant cotton.

[0019] The melting point of the low-melting cotton is 180°C. The flame-retardant cotton is made by adding a flame retardant to raw cotton, and the weight ratio of raw cotton to flame retardant is 1.3:1.

[0020] A method for manufacturing thermosetting sound-absorbing cotton, comprising the following steps: opening the packaged raw cotton; adding a flame retardant to part of the raw cotton according to the proportion, and performing flame-retardant treatment to make flame-retardant cotton; The melted cotton, flame-retardant cotton and fiber cotton are mixed in the carding machine, and the fibers are formed ...

no. 2 Embodiment

[0023] The second specific embodiment of the present invention is a thermosetting sound-absorbing cotton. The thermosetting sound-absorbing cotton is composed of three materials: low-melt cotton, fiber cotton and flame-retardant cotton, and its density is 1000g / m 2 , including 180 grams of low-melt cotton, 210 grams of fiber cotton, and 610 grams of flame-retardant cotton.

[0024] The melting point of the low-melting cotton is 160°C. The flame retardant cotton is made by adding a flame retardant to raw cotton, and the weight ratio of raw cotton to flame retardant is 1.5:1.

[0025] The manufacturing method of the above-mentioned thermosetting sound-absorbing cotton includes the following steps: opening the packaged raw cotton; Cotton, flame-retardant cotton and fiber cotton are mixed in the carding machine, and the fiber is formed into a net at the same time; the product after the fiber is formed into a net is subjected to heat setting treatment;

[0026] After the three ma...

no. 3 Embodiment

[0029] The third specific embodiment of the present invention is a thermosetting sound-absorbing cotton. The thermosetting sound-absorbing cotton is composed of three materials: low-melt cotton, fiber cotton and flame-retardant cotton, and its density is 1400g / m 2 , including 300 grams of low-melt cotton, 300 grams of fiber cotton, and 800 grams of flame-retardant cotton.

[0030] Both fiber cotton and flame-retardant cotton are processed from recycled waste.

[0031] The melting point of the low-melting cotton is 160°C. The flame retardant cotton is made by adding a flame retardant to raw cotton, and the weight ratio of raw cotton to flame retardant is 1.0:1.

[0032] The above-mentioned manufacturing method of thermosetting sound-absorbing cotton includes the following steps: crushing the waste materials used for manufacturing fiber cotton and flame-retardant cotton, and opening the packaged raw cotton; adding flame-retardant cotton to part of the raw cotton according to th...

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Abstract

The invention relates to a thermosetting sound-absorbing cotton, comprising eutectic cotton 0.5-1.5 share, fiber cotton 0.5-1.5 share and flame retardant cotton 2.5-3.5 shares. And its manufacturing method comprises the following steps of: opening the ready-packaged raw cotton; proportionally adding flame retardant into part of the raw cotton to make flame retardant cotton; mixing the eutectic cotton, flame retardant and fiber cotton in a carding machine and simultaneously fibering and forming a web; making thermosetting treatment; slicing and finally making the finished products.

Description

technical field [0001] The invention relates to a decorative sound-absorbing material, in particular to a novel sound-absorbing cotton with many advantages such as environmental protection and fire prevention and a production method thereof. Background technique [0002] Sound-absorbing cotton has been more and more used in the interior decoration of buildings and vehicles such as automobiles, but there are many deficiencies in the existing sound-absorbing cotton products and their manufacturing methods, mainly as follows: ① using the original The manual operation and the use of knife stacks have low productivity; ②The improper selection of the molding process results in environmental pollution, cotton dust flying all over the sky, and fire accidents; ③No flame retardant treatment; , Poor tensile strength; ⑤ Insufficient appearance and flatness, large deviation in thickness; ⑥ Large weight deviation (automotive materials have strict weight control requirements), which cannot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/48E04B1/84D04H13/00
Inventor 崔南华
Owner 广州市豪力佳非织造新材料有限公司