Heat-bondable conjugate fiber with excellent softness and nonwoven fabric using the same

A composite fiber and thermal bonding technology, which is applied in the direction of non-woven fabrics, fiber treatment, fiber chemical characteristics, etc., can solve the problems of reducing the bulkiness of non-woven fabrics, physical irritation of the skin, and low softness of non-woven fabrics, so as to maintain stability, Effect of good fiber elongation

Active Publication Date: 2016-01-27
FIBERVISIONS LP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in these cases, the nonwoven fabric obtained has low softness and causes strong physical irritation to the skin
On the other hand, when priority is given to softness that suppresses irritation to the skin, the bulkiness (especially in cushioning effect) of the obtained nonwoven fabric is greatly reduced, so it shows poor fluidity. absorption properties

Method used

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  • Heat-bondable conjugate fiber with excellent softness and nonwoven fabric using the same
  • Heat-bondable conjugate fiber with excellent softness and nonwoven fabric using the same
  • Heat-bondable conjugate fiber with excellent softness and nonwoven fabric using the same

Examples

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Effect test

example

[0095] Hereinafter, the present invention is explained with reference to examples, but the present invention is not limited to these examples. In each example, physical evaluation was performed by the method mentioned later.

[0096] (thermoplastic resin)

[0097] The following resins were used as thermoplastic resins constituting the conjugate fibers. Resin 1: high-density polyethylene (abbreviation: PE), its density is 0.96 g / cm3, MFR (190°C, load: 21.18N) is 16 g / 10 minutes, melting point is 130°C; resin 2: Polypropylene crystal (abbreviation: PP) with an MFR (230°C, load: 21.18N) of 5 g / 10 minutes and a melting point of 162°C; Resin 3: polyethylene terephthalate (abbreviation: PET), which The intrinsic viscosity is 0.64, and the glass transition temperature is 70°C.

[0098] (How to add inorganic fine particles)

[0099] The following method was used as a method for incorporating inorganic fine particles into the composite fiber.

[0100] The inorganic fine particle p...

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PUM

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Abstract

An object of the present invention is to provide a heat-bondable conjugate fiber ensuring that the crimp configuration stability can be maintained even in the state of leaving elongation of the fiber and bulkiness and softness are imparted to the nonwoven fabric, and a nonwoven fabric using the same. The present invention provides a heat-bondable conjugate fiber comprising a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower than the melting point of said polyester-based resin, wherein said second component is a heat-bondable conjugate fiber accounting for a specific range of the outer fiber circumference and having a side-by-side or eccentric sheath-core structure and the fiber has a specific elongation, a specific range of a three-dimensional actualized crimp and a specific range of a crimp modulus.

Description

technical field [0001] The present invention relates to a heat-bonding composite fiber, and more particularly to a heat-bonding composite fiber whereby a nonwoven fabric or the like having excellent softness can be obtained. More specifically, the present invention relates to a heat-bonding composite fiber that can obtain, for example, a nonwoven fabric having excellent softness and being suitable for various applications, and a nonwoven fabric having excellent softness using the same. The aforementioned applications are, for example, absorbent articles for cleaning materials such as diapers, napkins and liners, medical and hygiene materials, life-related materials, general medical materials, cushion materials, filter materials, care products and pet products. Background technique [0002] Conventionally, thermal bonding composite fibers formable by thermal fusion using thermal energy such as hot air and heated rolls can easily provide nonwoven fabrics with excellent bulkine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F8/14D01D5/34D01D5/32D01F1/10D02G1/00D04H1/42D04H1/54
CPCD01D5/32D01D5/34D01F1/10D01F8/06D01F8/14D04H1/4291D04H1/435D04H1/43828D04H1/43918D04H1/43838D04H1/43832D04H1/5414D04H1/43914D04H1/5412Y10T442/629Y10T428/2931Y10T442/627B29C55/005B29K2067/00B29K2067/003B29L2031/731D02G1/004D10B2501/00D10B2503/00D10B2505/00D10B2505/04D10B2509/00D10B2509/026
Inventor 久保田仁井手口忠
Owner FIBERVISIONS LP
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