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A Double Reinforcement Forming Process of Supersoft Hydrophilic Spunbond Nonwovens

A technology of spun-bonded non-woven fabrics and molding process, which is applied in non-woven fabrics, textiles, papermaking, equipment configuration for processing textile materials, etc. It can solve the problems of lack of wettability and other hydrophilic properties, and achieve improved resource utilization, The effect of improving hydrophilicity

Active Publication Date: 2021-07-02
ZHEJIANG KEDEBANG NONWOVEN CLOTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spunbonded non-woven fabric: After the polymer is extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then bonded by itself, thermally bonded, chemically bonded or mechanically reinforced to make the fiber The net becomes a non-woven fabric, however, synthetic fibers such as polyolefin-based fibers are inherently hydrophobic, and compared with artificial fibers made of natural fibers such as cotton and wood pulp, they repel water and lack water wetting Poor hydrophilicity, etc., a double-reinforced forming process for ultra-soft hydrophilic spunbonded non-woven fabrics is now proposed

Method used

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  • A Double Reinforcement Forming Process of Supersoft Hydrophilic Spunbond Nonwovens
  • A Double Reinforcement Forming Process of Supersoft Hydrophilic Spunbond Nonwovens

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Embodiment Construction

[0023] refer to figure 1 , figure 2 The present invention a kind of supersoft hydrophilic spunbonded nonwoven double reinforcement molding process, comprises the following steps:

[0024] a) Raw material preparation: the weight ratio of each component of the non-woven raw material is: 84 parts of polypropylene PP, 13.5 parts of propylene-based elastomer, 0.9 part of soft masterbatch, and 1.1 part of titanium dioxide. Co-blended, the melt stream is condensed in the water tank, then air-dried by an air dryer, sliced ​​by a slicer, and modified raw material slices are obtained;

[0025] b) Melt filtration: Extrude and melt the modified raw material chips obtained in step a) through a twin-screw extruder to obtain a melt, remove impurities on-line through a filter, and then enter the spinning system. The melt filtration adopts pre-filtration and finishing. The secondary filtration method of filtration, the precision of the pre-filtration is less than 80µm, and the precision of ...

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Abstract

The present invention proposes a double-reinforced molding process for supersoft and hydrophilic spunbond nonwoven fabrics, which includes the following steps: preparing raw materials to obtain modified raw materials, melting and filtering the modified raw material slices, and then entering the spinning system, and spinning the spun The silk is cooled by the side cold air to obtain the primary growth silk, and the primary growth silk is passed through the air flow splitting method, and the primary growth silk is drafted by the airflow through the bell mouth of the slit drafter, and the fiber web is transported in the web forming process. The belt is continuously fed into the hot rolling mill for reinforcement, and the non-woven fabric is obtained through hot rolling and spunlace reinforcement. The non-woven fabric is subjected to hydrophilic finishing through the hydrophilic finishing system, and then the non-woven fabric is input into the oven for drying Drying, trimming by winding machine, roll into rolls, packaging for delivery, use spunbond spunlace double reinforcement technology to prepare non-woven fabrics instead of traditional hot-air cloth production, non-woven fabrics are fluffy, soft and skin-friendly, and can be used The finishing system for recycling hydrophilic slurry can recycle the hydrophilic slurry and improve resource utilization.

Description

technical field [0001] The invention relates to the technical field of non-woven fabric production, in particular to a double-reinforced forming process for supersoft and hydrophilic spun-bonded non-woven fabrics. Background technique [0002] Non-woven fabrics are non-woven fabrics. It is a non-woven fabric formed by directly using high polymer chips, short fibers or filaments to form fibers through airflow or machinery, and then strengthened by water entanglement, needle punching or hot rolling, and finally finished. Woven cloth. Spunbonded non-woven fabric: After the polymer is extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then bonded by itself, thermally bonded, chemically bonded or mechanically reinforced to make the fiber The net becomes a non-woven fabric, however, synthetic fibers such as polyolefin-based fibers are inherently hydrophobic, and compared with artificial fibers made of natural fibers such as cott...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4291D04H1/4382D04H1/485D06B1/02D06B23/20
CPCD04H1/4291D04H1/4382D04H1/485D06B1/02D06B23/20D10B2401/022
Inventor 严华荣董二莹陈健康金银山
Owner ZHEJIANG KEDEBANG NONWOVEN CLOTH