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Three-dimensional dry non-woven fabric composite material as well as preparation method and application thereof

A technology of composite materials and non-woven fabrics, which is applied in the direction of textiles and papermaking, non-woven fabrics, and layered products. It can solve the problems of wet non-woven fabrics, achieve stable dryness, speed up absorption, and reduce the risk of leakage Effect

Pending Publication Date: 2022-03-25
WINNER MEDICAL CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of this application is to provide a three-dimensional dry non-woven composite material to solve the problem of non-woven moisture

Method used

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  • Three-dimensional dry non-woven fabric composite material as well as preparation method and application thereof
  • Three-dimensional dry non-woven fabric composite material as well as preparation method and application thereof
  • Three-dimensional dry non-woven fabric composite material as well as preparation method and application thereof

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preparation example Construction

[0060] The present application also provides a method for preparing the above-mentioned three-dimensional dry non-woven composite material, comprising the following steps:

[0061] Step 1: stacking the water-repellent non-woven fabric and the hydrophilic non-woven fabric to form a composite material layer.

[0062] In one embodiment, the composite material layer is formed by superimposing the water-repellent non-woven fabric and the hydrophilic non-woven fabric, which may be: the composite material is made by combining the water-repellent non-woven fabric and the hydrophilic non-woven fabric layer.

[0063] Preferably, the compounding process includes any one of glue compounding, spunlace compounding, needle-punched compounding, ultrasonic and thermal compounding. Using the compounding process for stacking can prevent the gap between the water-repellent non-woven fabric and the hydrophilic non-woven fabric. Interlayer, improve product reliability.

[0064] Preferably, the co...

Embodiment 1

[0074] The water-repellent non-woven fabric of the surface layer 10 is made of water-repellent cotton spunlace non-woven fabric of about 25g / ㎡, the fiber fineness is 0.8-4.0dtex, the fiber length is 15-45mm, the mesh size is 4-50 mesh, the bottom layer 20 Hydrophilic non-woven fabric adopts 12-40g / m 2 Multi-hydrophilic type hot air cloth, the production process of the three-dimensional dry pure cotton spunlace nonwoven composite material of embodiment 1 is as follows Figure 4 As shown, it specifically includes the following steps:

[0075] 1) Raw material preparation: prepare water-repellent raw cotton, that is, 100% pure natural cotton fiber without degreasing, for use.

[0076] 2) Cleaning: Use the cleaning machine to remove impurities from the raw cotton, and screen out the three threads and foreign objects in the raw cotton.

[0077] 3) Carding: It includes two parts: opening and carding, that is, opening the cotton fiber into a single fiber state, which is convenient f...

Embodiment 2

[0089] The surface layer water-repellent non-woven fabric adopts water-repellent cotton-containing spunlace non-woven fabric, and the composition of water-repellent cotton-containing spunlace non-woven fabric is a combination of 50% cotton + 50% polyester. Softness, at the same time taking into account the hot-melt properties of the water-repellent non-woven surface layer, which is convenient for hot-melt bonding with other hot-melt materials. The bottom hydrophilic non-woven fabric adopts 12-40g / m 2 Many hydrophilic type hot-air cloths, the production process of the three-dimensional dry and dry cotton-containing non-woven composite material of embodiment 2 is as follows image 3 As shown, it specifically includes the following steps:

[0090] 1) Material preparation: fully mix 50% raw cotton and 50% polyester fiber and prepare for use.

[0091] 2) Cleaning: Use the cleaning machine to remove impurities from raw cotton and polyester, and screen out three threads and foreign...

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Abstract

The invention provides a three-dimensional dry and comfortable non-woven fabric composite material and a preparation method and application thereof.The three-dimensional dry and comfortable non-woven fabric composite material comprises a water-repellent surface layer and a hydrophilic bottom layer, the composite material is integrally in a concave-convex shape and comprises protruding parts and concave parts which are arranged at intervals, and the water-repellent non-woven fabric covers the protruding parts and does not cover the concave parts; and the meshes of the water-repellent non-woven fabric face the concave part. The structural design of the three-dimensional dry and comfortable non-woven fabric composite material has two advantages that on one hand, the water-repellent non-woven fabric is arranged on the convex parts, so that liquid on the water-repellent non-woven fabric is easy to slide to the mesh positions, the water-repellent non-woven fabric cannot influence liquid infiltration, and the dry and comfortable performance is stable; on the other hand, the covering area of the meshes on the hydrophilic non-woven fabric can be increased due to the fact that the meshes of the water-repellent non-woven fabric face the concave parts, that is, the contact area of the hydrophilic non-woven fabric and liquid through the meshes of the water-repellent non-woven fabric is larger, and therefore the liquid absorption speed is increased, slippage and seepage are reduced, and the risk of liquid leakage of a sanitary product using the composite material is reduced.

Description

technical field [0001] The present application relates to the technical field of composite materials, in particular to a three-dimensional dry non-woven composite material and its preparation method and application. Background technique [0002] With the improvement of people's living standards, consumers have higher and higher requirements for the comfort and safety of sanitary products such as sanitary napkins and diapers. Due to its excellent skin-friendly and soft properties, spunlace non-woven fabrics can meet the needs of consumers for skin-friendly, comfort and safety, so they are more and more applied to the surface layer of sanitary products. Since the cellulose fiber itself has good water absorption, the spunlace non-woven fabric made of it will also have good water absorption, which will cause the spunlace non-woven fabric to be relatively wet when used on the surface layer of sanitary products. For sanitary napkins and diapers with high requirements, it is parti...

Claims

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Application Information

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IPC IPC(8): D04H1/492D04H1/4382D04H1/435D04H1/425B32B5/02B32B5/26B32B7/09B32B7/12
CPCD04H1/492D04H1/43835D04H1/425D04H1/435B32B5/022B32B5/028B32B5/26B32B7/09B32B7/12D10B2401/021D10B2401/022D10B2509/026
Inventor 李建全唐宗波王欢陈泽澜
Owner WINNER MEDICAL CO LTD
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