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Nonwoven fabric and method for manufacturing same

A technology of non-woven fabrics and fibers, which is applied in the direction of textiles, papermaking, textiles, and non-woven fabrics. Clear and other problems, to achieve the effect of high fiber density

Active Publication Date: 2012-07-25
JAPAN VILENE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this stretchable non-woven fabric is first used, it is indeed quite clear to identify the concave unit, and information such as the source, medicinal ingredients, design, etc. can be obtained, but when it is used as a base fabric for skin application, there are the following problems: Rubbing, the above-mentioned recognition concave unit becomes unclear, and information such as the source, medicinal ingredients, design, etc. cannot be clearly identified
Although the characters are embossed on this support, it can be seen from the examples that the low-melting-point fibers are fused, and it is a support that does not have stretchability.

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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  • Nonwoven fabric and method for manufacturing same
  • Nonwoven fabric and method for manufacturing same
  • Nonwoven fabric and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Use 100% by mass of latent crimped fibers (fineness 2.2dtex, fiber length 51mm) of a combination of polyester (melting point: 250°C) / low-melting point polyester (melting point: 230°C), using a carding machine Opening, and then use a cross lapper to form a cross web (weight per unit area: 60g / m 2 ), conveyed with a 90-mesh polyester twill net (support body) and entangled with water flow at the same time to form a hydroentangled web. The conditions for hydroentangling are as follows.

[0084] 1. Sprinkler: 0.1MPa (record one side as "A side")

[0085] 2. 5.5 MPa (side A) from a nozzle plate with a nozzle diameter of 0.13 mm and a nozzle spacing of 0.6 mm

[0086] 3. 5.5 MPa from a nozzle plate with a nozzle diameter of 0.13 mm and a nozzle pitch of 0.6 mm (the opposite side of A side, hereinafter referred to as "B side")

[0087] Next, after drying the hydroentangled fiber web at 110°C, for the hydroentangled fiber web that is overfed in the warp direction without rest...

Embodiment 2

[0096] Change the hydroentanglement conditions as follows, and set the temperature of the hot air dryer when the latently crimped fibers are crimped to form highly crimped fibers at 185°C, so that the area of ​​the hydroentangled web is in the warp direction and Except that the weft direction was shrunk by 35% in total, it carried out similarly to Example 1, and produced the nonwoven fabric. The crimped portion of the nonwoven fabric was not welded.

[0097] 1. Sprinkler: 0.1MPa (side A)

[0098] 2. Nozzle plate 4.0MPa (side A) with a nozzle diameter of 0.13mm and a nozzle spacing of 0.6mm

[0099] 3. Nozzle plate 5.5MPa (side B) with a nozzle diameter of 0.13mm and a nozzle spacing of 0.6mm

Embodiment 3

[0101] Change the hydroentangling conditions as follows, and set the temperature of the hot air dryer to 185°C when the latently crimped fibers are crimped to form highly crimped fibers, so that the area of ​​the hydroentangled web shrinks by 45%, Other than that, it carried out similarly to Example 1, and produced the nonwoven fabric. The crimped portion of the nonwoven fabric was not welded.

[0102] 1. Sprinkler: 0.1MPa (side A)

[0103] 2. Nozzle plate 4.0MPa (side A) with a nozzle diameter of 0.13mm and a nozzle spacing of 0.6mm

[0104] 3. Nozzle plate 5.0MPa (side B) with a nozzle diameter of 0.13mm and a nozzle spacing of 0.6mm

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

Provided are an extensible nonwoven fabric on which the source, the medicinal component, a pattern and / or other pieces of information are recognizable not only at beginning of the use of the fabric but also during use; and a method for manufacturing the nonwoven fabric. The nonwoven fabric of the invention is a nonwoven fabric made mainly of highly crimped fibers, partially having a compressed region where no fibers are melted and bonded to each other, and having a tensile strength of 25 N / 5-cm-width or more in both the machine direction and the cross direction. This nonwoven fabric may be manufactured by causing a water jet having a pressure of 5 MPa or more to act onto a fiber web made mainly of a latent crimpable fiber, thereby forming an entangled fiber web, causing heat to act onto the entangled fiber web, thereby crimping the latent crimpable fiber to convert the fiber to a highly crimped fiber and contracting, at the time of the conversion, the area of the entangled fiber web by 30% or more, thereby forming a contracted fiber web, and embossing the contracted fiber web in such a manner that the fibers are not melted and bonded to each other.

Description

technical field [0001] The present invention relates to a nonwoven fabric having a crimped portion where fibers are not fused (fused). More specifically, the present invention relates to a nonwoven fabric capable of clearly identifying the crimped portion. Since the nonwoven fabric of the present invention has stretchability, it is suitable for use as a skin patch base fabric for applying a paste containing medicinal ingredients to form an external patch, and for applying a cosmetic gel to A skin-adhering base fabric constituting a mask material, or a skin-adhering base fabric for constituting a mask material by impregnating a cosmetic liquid. Background technique [0002] Nonwoven fabrics have been used in various applications for a long time. For example, non-woven fabrics with stretchability are suitable for skin application base fabrics due to their stretchability, but in order to know the source (manufacturer, product name, etc.) and The medicinal ingredients of 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): D04H1/4391D04H1/4382D04H1/492D04H1/541D06C23/04
CPCD06C23/04D04H1/50D04H1/492D04H1/482D04H1/4382D04H1/498D04H1/74D04H1/43828D04H1/43832Y10T442/60D04H1/435
Inventor 道畑丰文武田茂树井上翔太
Owner JAPAN VILENE CO LTD
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