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Preparation method for pure cotton non-woven product

A technology for non-woven fabrics and products, applied in the field of preparation of pure cotton non-woven products, can solve the problems of insufficient softness, discomfort, limited application range, etc. Effect

Inactive Publication Date: 2019-04-16
SHENZHEN PURCOTTON TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the raw material is chemical synthetic fiber, there will be several problems in the nonwoven products: 1) Since it is not cotton fiber, the product will have problems such as poor water absorption, not soft enough, and poor elasticity. Users are using skin-friendly products. (such as towels, bath towels, quilt covers) are very uncomfortable and the experience is poor; 2) Most of the synthetic fibers are compounded by chemical bonding or hot air fixing, the process is complicated, and additives such as resins or adhesives are used , the production is not environmentally friendly
[0004] If the raw material is natural cotton fiber, when the finished product is thick (especially as a filling product for the quilt core), it is easy to have holes, agglomerates and other phenomena after washing, and it is extremely easy to deform, so it cannot be torn. And kneading, so that it has limited application range in the field of household quilts and other products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method for pure cotton non-woven product
  • Preparation method for pure cotton non-woven product
  • Preparation method for pure cotton non-woven product

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation method of a kind of pure cotton nonwoven product of the present application, adopts natural cotton fiber as raw material, carries out needle-punching and hydroentangling treatment to natural cotton fiber, wherein carries out needle-punching to whole cotton web, makes its fiber entanglement firmly and Keep fluffy and soft, so that the inner cotton fibers do not move, clumping and voids, and then the surface and bottom layer of the needle-punched cotton web are spunlace on the front and back, so that the surface and bottom layer are strengthened and become the core of non-woven fabrics. state, thus forming an integrated structure of "cloth-mesh-cloth". Compared with the original secondary combination of external adhesion layer and cotton fiber, the integrally formed pure cotton non-woven product is more comfortable, skin-friendly and breathable, and the non-woven fabric structure of the surface layer and the bottom layer binds the cotton wadding of the inne...

Embodiment 1

[0030] Such as figure 1 Shown, a kind of preparation method of pure cotton nonwoven product, comprises the following steps:

[0031] S100: Opening, mixing and carding;

[0032] Open the compacted and messy entangled natural cotton fiber raw materials, remove impurities, and mix them evenly. After evenly mixing, comb the cotton fibers to prevent static electricity and accidents.

[0033] S200: cross-lapping;

[0034] The carded cotton fiber is sent to the cross-lapper, and the cross-lapper cross-lays the cotton fiber back and forth to form a cotton web of a certain thickness.

[0035] At present, the technology of direct laying out of the net is mostly used in the process. The cotton net after straight laying out of the net has weak lateral strength, which cannot achieve the purpose of increasing the strength of the fabric. The transverse strength of the cotton web after cross-lapping is greatly improved, and the structural stability of the cotton web is improved to a certai...

Embodiment 2

[0058] Such as image 3 As shown, on the basis of Example 1, a degreasing and bleaching step is added after needle punching and before spunlace, and degreasing and bleaching can improve the whiteness and water absorption performance of the product.

[0059] The degreasing step is to remove the cotton wax on the cotton net. The moisture absorption performance of the degreased raw cotton is significantly increased. After many tests in this application, its water absorption capacity can reach 23-24 times its own weight. After the cotton fiber is degreased, it is bleached with hydrogen peroxide, and the whiteness can reach 97 degrees. In other embodiments, other methods of bleaching can also be used.

[0060] After the degreasing and bleaching is completed, the needle-punched cotton web is hydroentangled. In addition to the advantages of the product in Example 1, the final nonwoven product prepared in this embodiment has clearer lines. This is because the needled cotton web is ...

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Abstract

The invention discloses a preparation method for a pure cotton non-woven product. The method comprises the following steps that cotton fibers are subjected to loosening and mixing and combing, then cross lapping is conducted, and therefore a cotton web is formed; the cotton web is formed and drafted; after drafting, the cotton web is reinforced by utilizing needling to form a needle-punched cottonweb; then the needle-punched cotton web is subjected to spunlace processing, the surface layer of the needle-punched cotton web is subjected to forward spunlace processing, the bottom layer of the needle-punched cotton web is subjected to reverse spunlace processing, and a spunlace product with the surface layer and the bottom layer being spunlace non-woven fabrics and the middle layer being theneedle-punched cotton web is formed; finally, a flat web drying mode is adopted for drying the spunlace product, and preparation of the non-woven product is completed. By adopting the preparation method, the natural cotton fibers are prepared into an integrally formed 'cloth-web-cloth' structure through a composite technology of needling and spunlace processing, and therefore the spunlace productcan be washable, cannot be deformed easily, and is soft, good in elasticity, higher in comfort and capable of keeping warm in the using process.

Description

technical field [0001] The present application relates to the field of textile technology, in particular to a method for preparing a pure cotton nonwoven product. Background technique [0002] Non-woven products include non-durable products and filled products, among which non-durable products include tablecloths, cotton pads, towels, bath towels, etc., and filled products include fillings inside clothes or quilts, both of which require a certain thickness and Need to directly participate in washing. The raw materials of current nonwoven products are divided into chemical synthetic fibers and natural cotton fibers. [0003] If the raw material is chemical synthetic fiber, there will be several problems in the nonwoven products: 1) Since it is not cotton fiber, the product will have problems such as poor water absorption, not soft enough, and poor elasticity. Users are using skin-friendly products. (such as towels, bath towels, quilt covers) are very uncomfortable and the e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04H1/425D04H1/46D04H1/492
CPCD04H1/425D04H1/46D04H1/492
Inventor 李建全彭漫邓志祥纪华唐黛杨鑫权
Owner SHENZHEN PURCOTTON TECH
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