Telescopic non-woven fabric and method of manufacturing the same

A technology of non-woven fabric and stretchability, which is applied to the base fabric of ear loops or poultice, the manufacture of non-woven fabrics, and the field of bandages. It can solve the problem of insufficient stretchability or texture of non-woven fabrics and the difficulty of obtaining non-woven fabrics Strength, difficulty in forming firm joints and other issues, to achieve the effect of excellent stretchable non-woven fabrics, good texture, and excellent balance

Active Publication Date: 2013-01-16
JNC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the stretchability and texture of the obtained nonwoven fabric are not sufficient
In addition, since heat bonding occurs while the positional relationship between fibers is changing, it is difficult to form a strong bonding point, and it is difficult to obtain sufficient strength of the nonwoven fabric.

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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  • Telescopic non-woven fabric and method of manufacturing the same
  • Telescopic non-woven fabric and method of manufacturing the same
  • Telescopic non-woven fabric and method of manufacturing the same

Examples

Experimental program
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Embodiment 1

[0048] Next, the present invention will be specifically described by way of examples, but the present invention is not limited to the following examples. In addition, definitions and measurement methods of terms used in Examples and Comparative Examples are as follows.

[0049] (1) Melting point and softening point: (unit: °C)

[0050] Using the differential scanning calorimeter DSC-Q10 manufactured by TA Instruments, the temperature corresponding to the peak on the melting absorption curve obtained when the temperature of the thermoplastic polymer is raised at 10° C. / min is defined as the melting point of the thermoplastic polymer, as follows The extrapolated melting onset temperature of is set as the softening point, and the extrapolated melting onset temperature is the temperature of the intersection obtained by extrapolating the tangent line drawn at the point of the maximum inclination of the upright part of the peak and the baseline before the peak .

[0051] (2) Denie...

example 2～ example 7、 comparative example 1～ comparative example 5

[0074] Nonwoven fabrics were produced in the same manner as in Example 1, except that the combinations and mixing ratios of heat-shrinkable conjugate fibers and heat-shrinkable conjugate fibers, and the temperatures of heat treatment (1) and heat treatment (2) shown in Table 3 were changed, The elongation recovery rate and the strength at elongation were also measured.

[0075] [Table 1]

[0076]

[0077] [Table 2]

[0078]

[0079] [table 3]

[0080]

[0081] As is clear from the results of Examples 1 to 7, the texture of the stretchable nonwoven fabric of the present invention is good, and when the repeated tensile test is performed, the elongation recovery rate is the same as that at the time of the tenth elongation of 50%. Excellent balance of strength.

[0082] On the other hand, when the heat-adhesive conjugate fiber was not used as in Comparative Example 1, although the elongation recovery rate was good, the strength at the 10th elongation was extremely low,...

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Abstract

The invention provides a telescopic non-woven fabric and a method of manufacturing the same. The telescopic non-woven fabric evenly comprises thin plate splines formed by, by mass, 90%-60% of a heat shrinkable composite fiber (A) obtained by using at least two resin components having different melting points, and 10%-40% of a heat bonding composite fiber (B) obtained by using at least two resin components having different melting points. By a specific heat treatment (1), the heat shrinkable composite fiber (A) is shrunk; and by a specific heat treatment (2), the resin component having the lowest melting point is fused to realize the heat bonding between fibers, so that the fibers are jointed integrally.

Description

technical field [0001] The present invention relates to a nonwoven fabric excellent in stretchability and strength during stretching and stretching, which is particularly suitable for ear loops of disposable masks, base fabrics of poultices, bandages, and the like. Furthermore, this invention relates to the manufacturing method of such a nonwoven fabric. Background technique [0002] A non-woven fabric in which the fibers are bonded to each other by thermally bonding the low-melting point component of the heat-adhesive composite fiber containing two types of thermoplastic resins with different melting points. It is hygienic and has excellent touch, so it is often used for masks, diapers, wet wipes, etc. use. As a method of imparting stretchability to such a nonwoven fabric, there is known a method of using fibers exhibiting crimp when thermally bonding thermally adhesive conjugate fibers (see, for example, Patent Document 1). [0003] However, in this method, since in the ...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/541D04H3/147D04H5/06
CPCA62B18/02D04H1/4382D04H1/50D04H1/541D04H1/544D04H1/55D04H13/00D06C7/00D10B2401/061D10B2401/063D10B2509/02
Inventor 小山裕司深泽彻
Owner JNC CORP
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