Ultra-soft and fluffy lightweight filament nonwoven composite material and preparation method thereof

A composite material and non-woven technology, applied in the directions of non-woven fabrics, textiles and papermaking, can solve the problems of single structure, uniformity, softness and fluffy lines of structure and reinforcement methods, etc., to ensure three-dimensional structure, The effect of reducing friction coefficient and reducing dependence

Active Publication Date: 2018-06-19
苏州多瑈新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the invention patent with the patent number CN201280008682.X proposes to use the spunbond method to produce hollow fibers or eccentric hollow fibers with a fiber diameter of 5-20 μm or less and a hollow rate of 5-30%. The central position of the hollow part in the fiber cross-section is different from the central position of the hollow fiber) polypropylene filament nonwoven material, but its structure is single, and the uniformity, softness and bulkiness based on the structure and reinforcement method are not considered

Method used

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  • Ultra-soft and fluffy lightweight filament nonwoven composite material and preparation method thereof
  • Ultra-soft and fluffy lightweight filament nonwoven composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This example provides figure 1 The supersoft and fluffy lightweight filament nonwoven composite material shown, the nonwoven composite material includes a first concentric hollow filament layer 1, an eccentric hollow filament layer 2 and a second concentric hollow filament layer 3 , the three are shaped together by multiple sets of hot rolling; combined figure 2 ,Specific steps are as follows:

[0037] 1) Blending of raw materials; respectively take 70 parts of polypropylene isotactic copolymer, 15 parts of ultra-high molecular weight polyethylene, 1 part of dimethyl silicone oil, 2 parts of polyethylene wax and 12 parts of metallocene modified polypropylene copolymer, After being sent to the mixer 4 and stirred for 15 minutes, it was introduced into the material pool 5.

[0038] 2) Preparation of the first concentric hollow filament layer; the mixed raw material is fed into the screw extruder 7-1 of the first concentric hollow filament layer through the feeding pipe...

Embodiment 2

[0044] The difference between embodiment 2 and embodiment 1 is that the ratio of raw materials is different.

[0045] (1) Blending of raw materials; in parts by weight, respectively take 50 parts of polypropylene isotactic copolymer, 15 parts of ultra-high molecular weight polyethylene, 2 parts of dimethyl silicone oil, 3 parts of polyethylene wax and metallocene modified poly 30 parts of propylene copolymers were sent to the mixer 4 and stirred for 20 minutes, and then introduced into the feed tank 5 .

Embodiment 3

[0047] The difference between embodiment 3 and embodiment 2 is that the spinning temperature is different.

[0048] The first concentric hollow filament layer spinning die head 10-1 (setting temperature 245 ° C), the die head 10-2 of eccentric hollow structure (setting temperature 235 ° C), the second concentric hollow filament layer spinning Die 10-3 (setting temperature 245°C).

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Abstract

The invention discloses an ultra-soft and fluffy lightweight filament nonwoven composite material with light weight, softness and fluffiness. The structure of the ultra-soft and fluffy lightweight filament nonwoven composite material successively comprises a first concentric hollow filament layer, a core shift hollow filament layer and a second concentric hollow filament layer from bottom to top,wherein the first concentric hollow filament layer, the core shift hollow filament layer and the second concentric hollow filament layer form a stereostructure by hot roll bonding; the areal density of a finished product is controlled between 6 to 100g / m<2> and the stereo thickness of the finished product is controlled between 0.3 to 2.1mm. The invention also provides a preparation method of the ultra-soft and fluffy lightweight filament nonwoven composite material. The ultra-soft and fluffy lightweight filament nonwoven composite material prepared by a preparation method disclosed by the invention, or a laminated body containing the nonwoven composite material can be widely used for medical treatment, civil construction, surgical gowns, packaging sheets, especially for absorbent hygiene products such as diaper and sanitary napkins.

Description

technical field [0001] The invention relates to the field of nonwoven materials, in particular to a supersoft and fluffy lightweight filament nonwoven composite material and a preparation method thereof. Background technique [0002] Polypropylene-based spunbond nonwovens, as a filament fiber material with polypropylene polymer as the main raw material and melt spunbonding method as the processing method, have good softness, air permeability and good strength. , It has a wide range of applications in the fields of medical and health care, filtration and separation. Among them, the application of polypropylene-based spunbonded nonwoven materials in the field of absorbent sanitary products such as diapers and sanitary napkins has increased tremendously with the increase of China's population and the improvement of convenience consumption awareness. However, with the sharp increase of its output, people's requirements for softness and bulkiness have increased; how to improve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H3/153D04H3/02
CPCD04H3/02D04H3/153
Inventor 宋卫民张恒甄琪袁建根史建宏季新刚
Owner 苏州多瑈新材料科技有限公司
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