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Hydrophilized non-woven fabric

A non-woven fabric and hydrophilization technology, which is applied in textiles and papermaking, fiber treatment, fiber types, etc., can solve the problems of complicated processing procedures, high manufacturing costs, large-scale, etc., and achieve cheap and durable hydrophilicity Effect

Inactive Publication Date: 2018-12-07
NIPPON KODOSHI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the methods (2) to (4) have disadvantages in that the manufacturing facilities become large-scale, the processing steps are complicated, and the manufacturing cost becomes high.
[0015] However, there is a problem that even if these hydrophilizing agents are used, the hydrophilicity after long-term storage is likely to decrease, and the decrease in hydrophilicity is particularly significant during medium- and long-term storage in warehouses that are prone to high temperature and high humidity.
In addition, component C is easily soluble in water and hardly contributes to the durability of hydrophilicity

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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  • Hydrophilized non-woven fabric
  • Hydrophilized non-woven fabric
  • Hydrophilized non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Octadecenyl succinic anhydride (alkenyl carbon number 18, SIZEPINE SA-864 manufactured by Arakawa Chemical Industry Co., Ltd.) was dissolved in ethanol to prepare an amphiphilic substance solution. Base weight 53g / m 2 , A PP spunbonded nonwoven fabric with a thickness of 125 μm was used as a base fabric, and the amphiphilic substance solution was applied by dipping, and dried in a dryer at 105°C for 15 minutes to produce a hydrophilized nonwoven fabric with a content of 5% by mass. . After measuring the initial content rate and degree of water absorption, a durability test was implemented. It should be noted that the base fabric is a square with a length of 20 cm x a width of 20 cm. The results are shown in Table 1.

Embodiment 2

[0076] It implemented similarly to Example 1 except having used pentadecenyl succinic anhydride (alkenyl carbon number 15, Sanyo Kasei Co., Ltd. PDSA-DA). The results are shown in Table 1.

Embodiment 3

[0078] It implemented similarly to Example 1 except having used octenyl succinic anhydride (alkenyl carbon number 8, OSA by Shin-Nippon Chemical Co., Ltd.). The results are shown in Table 1.

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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Abstract

The invention proivdes a hydrophilic non-woven fabric which is hydrophilic, low in degradation even through contacting water repeatedly and good in durability. The hydrophilic non-woven fabric is composed of amphiphilic substances containing alkenyl succinic acid, alkenyl succinic anhydride, alkylene dicarboxylic acid, alkenyl dicarboxylic acid or mixers thereof.

Description

technical field [0001] The present invention relates to a hydrophilized nonwoven fabric. In particular, it relates to a hydrophilized nonwoven fabric having durability such that hydrophilicity continues to develop. Background technique [0002] Nonwoven fabrics made of synthetic fibers are used in various fields of daily necessities, starting from the surface materials of wipes, wet tissues, and hygiene products (diapers, etc.). For example, it is preferable to use a nonwoven fabric formed of polyolefin-based fibers because it is excellent in mechanical properties, chemical resistance, and the like. [0003] However, synthetic fibers such as polyolefin fibers are inherently hydrophobic, and are inferior in hydrophilicity such as repelling water and lacking wettability to water, compared with artificial fibers made of natural fibers such as cotton and wood pulp. [0004] Therefore, various methods have been proposed for making nonwoven fabrics (hydrophobic nonwoven fabrics)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M13/207D06M13/144D06M101/32D06M101/20D06M101/34
CPCD06M13/144D06M13/207D06M2101/20D06M2101/32D06M2101/34
Inventor 山崎泰久佐久间贵士熊冈弘伦
Owner NIPPON KODOSHI