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Non-woven fabric and manufacturing process therefor

A manufacturing method and technology of non-woven fabrics, applied in textiles and papermaking, non-woven fabrics, liquid/gas/vapor treatment of indefinite-length textile materials, etc., can solve the problems of poor touch of non-woven fabrics and other issues

Active Publication Date: 2014-07-23
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology uses embossing, so there is a problem that the touch of the nonwoven fabric deteriorates

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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  • Non-woven fabric and manufacturing process therefor
  • Non-woven fabric and manufacturing process therefor
  • Non-woven fabric and manufacturing process therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] As the first raw material fiber, a concentric core-sheath type conjugate fiber having a core made of PET and a sheath made of PE was used. The fiber had a length of 51 mm and contained 0.5% of titanium oxide as a white pigment. In addition, the thickness of this fiber is as shown in Table 1.

[0107] In addition to the first raw material fiber, as the second raw material fiber, a core-sheath type conjugate fiber obtained by defibrating and regenerating the end of the nonwoven fabric produced in the present Example was used. For defibration, a device (not shown) equipped with a feed roller provided with a head for supplying a nonwoven fabric, a front cylinder for winding a saw-shaped thread, and an air blowing mechanism, called a defibrator, was used. In the regenerated core-sheath composite fibers, the remnants of the fiber bond can be seen locally. The ratio of the 2nd raw material fiber is the value shown in Table 1 with respect to the whole raw material fiber. The...

Embodiment 2 to 11 and comparative example 1 to 8

[0113] A nonwoven fabric was obtained in the same manner as in Example 1 except that the conditions shown in Table 1 were used.

[0114] 〔Evaluation〕

[0115] The evaluation shown in Table 1 was performed about the nonwoven fabric obtained by the Example and the comparative example. In this table, the number of small fiber lumps is 0.5 mm for the area determined by image analysis 2 The results obtained from the statistics of the above small fiber blocks. In addition, the skin feel was evaluated by the following method.

[0116] That is, a sample was prepared, and the skin touch was evaluated using the average score of the touch of 10 panelists. Specifically, a box into which the sample could not be seen, and only two hands could insert, was placed in the box by the person to be evaluated, and the panelists were exposed to a 20 cm x 30 cm piece of sample on a thick paper placed in the box, and then scored on a scale of 1 to 10. 10-level evaluation of its feel. The group me...

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Abstract

A non-woven fabric (10) is manufactured by an air-through method. In the non-woven fabric (10), multiple small fiber masses (30) having a color deeper than that of the ground of the non-woven fabric (10) are dispersed and arranged in a disseminated state over the whole of the non-woven fabric (10). Further, the thickness difference (T3) is 1mm or less as defined by the formula: T3 = T1 - T2 [wherein T1 is the thickness of the non-woven fabric (10) as determined under a pressure of 7.64kPa at a position where a small fiber mass (30) is put, while T2 is the thickness thereof as determined under a pressure of 7.64kPa at a position where a small fiber mass (30) is not put].

Description

technical field [0001] The present invention relates to a nonwoven fabric and a method for producing the same. Background technique [0002] The air-through nonwoven fabric has a characteristic of having a softer texture than a nonwoven fabric produced by a thermal embossing method because a thermally welded portion is formed at the intersection of the fibers. In addition, when compared with other nonwoven fabrics of the same basis weight, the thickness of the air-through nonwoven fabric is increased, so that a soft and soft touch is obtained and becomes softer. Therefore, an air-through nonwoven fabric is preferable as the nonwoven fabric used for the part in contact with the skin. [0003] It is known to use fine fibers, for example, as a means of improving the feel of the air-through nonwoven fabric. This is because the rigidity of the fine fibers is low, so that the nonwoven fabric using such fibers as a raw material becomes soft. However, when fine fibers are used, t...

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): D04H1/541D04H1/542D06C15/08
CPCD06C7/00D04H1/413D04H1/54D04H1/72D06B5/08D06C15/02
Inventor 坂涉舛木哲也
Owner KAO CORP
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