JP2909838B2 - Needle-resistant fabric with moisture permeability and waterproofness - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a needle-resistant fabric having moisture permeability and waterproofness, which can be worn comfortably and has excellent needle-resistance to needle-like bodies such as barbed plants. It is an object of the present invention to provide a cloth capable of providing clothing and the like having characteristics.

(Industrial application field) Moisture-permeable waterproof cloth for obtaining clothes with excellent needle resistance.

(Prior art) For mountain stream fishing, collecting wild plants, mushrooms, and chestnuts, it is necessary to enter between trees where thorns and other barbed plants are breeding. It gets caught on barbed plants and is damaged, possibly damaging the wearer's skin.

Therefore, some studies have been made on clothes for preventing such puncture damage such as barbed plants, and the clothes provided with waterproofness especially in consideration of the valley fishing and wearing during rainy season and the like. What is conventionally known as 210 denier, 24 filaments, density 65 × 6
There is a plain woven fabric having a thickness of 0 / inch coated with a waterproof layer such as vinyl chloride.

In addition, since the waterproof cloth as described above generally does not have moisture permeability, a moisture-permeable waterproof cloth in which a continuous porous polytetrafluoroethylene film is laminated to achieve comfortable wearing even during sweating or during the rainy season is required. It is disclosed in JP-A-60-39014.

(Problems to be Solved by the Invention) Even if the above-mentioned conventional waterproof cloth is preferable because it can be waterproof, it does not have moisture permeability, so it must give a stuffy feeling. Moreover, it is not always preferable in terms of needle resistance.

Japanese Unexamined Patent Publication (Kokai) No. 60-39014 allows moisture permeability to be obtained due to the fine pore structure of the fibrillated polytetrafluoroethylene film, and can greatly reduce the stuffiness at the time of perspiration, but is insufficient in needle resistance. Absent. That is, there is a disadvantage in that, when the pedestrian enters the crowded area of the barbed plant as described above, the waterproof moisture-permeable tissue at the corner is easily damaged, water leaks, and durability is poor.

“Constitution of the Invention” (Means for Solving the Problems) The present invention has been made by studying to solve the above-mentioned problems in the conventional device, and has been developed by using a porous polytetrafluoroethylene film. It has a preferable waterproof and moisture-permeable property, and has succeeded in obtaining sufficient durability by preventing the occurrence of pinholes and the like even by insertion with a stab plant as described above, as follows. It is.

(1) A surface cloth of an ultra-high-density cloth having a thickness of 0.1 to 1.0 mm using a yarn composed of a single fiber of 0.01 to 1.5 deniers,
A needle-resistant cloth having moisture permeability and waterproofness, characterized by laminating a continuous porous polytetrafluoroethylene film having a thickness of 10 to 120 µm.

(2) At least one surface of the continuous porous polytetrafluoroethylene membrane is laminated with a hydrophilic resin layer having air impermeability and moisture permeability, and has moisture permeability and waterproofness according to claim 1. Needle-resistant fabric.

In addition, the needle-resistant cloth in the present invention is a cloth used for clothes that require needle-resistance to acicular bodies such as needle-bearing plants.

(Examples) To explain a specific embodiment of the present invention as described above, in the present invention, as shown in FIG. 1, a stretched porous polytetrafluorocarbon is applied to a cloth 1 such as a twill high-density cloth. A stack of ethylene films 2
More specifically, they are bonded by bonding portions 3 having appropriate intervals. As the cloth 1, a plain-woven high-density cloth 1a as shown in FIG. 2 and a high-density non-woven cloth 1b as shown in FIG. 3 can be used.

Further, according to the present invention, as shown in FIG. 4, a stretched porous polytetrafluoroethylene film 2 is laminated on a high-density fabric 1, and a hydrophilic resin layer 4 is further laminated on the laminate. I do. The hydrophilic resin 4 may be interposed between the membrane 2 and the high-density cloth 1.

As the single fibers forming the high-density fabric 1 or 1a, 1b, specifically, those having a range of about 0.01 to 1.5 denier are employed, and preferably 0.05 to 1.0 denier.

The density of a woven fabric formed as a cloth is, for example, 150 × 1 when a raw silk raw material equivalent to 75 denier of polyester is used.
It is at least 00 needles / inch, and if it is at least this degree, a favorable needle-proof action can be obtained for such as stabbing plants. The moisture permeation amount 3000g / cm ² · 24hr or more, preferably 5000g / cm ² · 24hr or more, more preferably 8000g / cm ² · 24
hr or more, and this level can be easily secured by employing the above-mentioned expanded porous polytetrafluoroethylene membrane.

The hydrophilic resin layer 4 is an air-impermeable and hydrophilic resin film which does not allow gas or liquid to pass through properly, but the water vapor concentration (vapor pressure) on one side of the film. Is formed on the other side, which is a hydrophilic one that absorbs water from the higher side and allows the movement of water to allow desorption or evaporation of water on the lower side. For example, polyether, obtained by polyurethane or velfluorosulfonic acid, and more specifically, the product Hypol and WRGrace U.S.
Products such as Nafion by EIDupont are known to have such properties, and such hydrophilic resins are generally used in a range of 5 μm to 50 μm, preferably 5 to 20 μm, more preferably 5 to 15 μm. By being formed as a layer thickness, moisture can be transmitted from one side to the other side, and the ventilation can be blocked. The thickness of the cloth 1, 1a or the high-density nonwoven fabric 1b is generally 0.1 to 1.0 mm, preferably 0.2 to 0.8 mm, more preferably
0.25 to 0.7 mm, which ensures needle resistance in combination with the above-mentioned denseness. The thickness of the stretched porous polytetrafluoroethylene film is generally from 10 to 120 μm, preferably from 20 to 100 μm, and more preferably from 35 to 100 μm.

Production Example 1 Using 0.38 denier monofilament, a cloth having a thickness of 0.28 mm was prepared at 75d / 246 filaments, 250 × 140 filaments / inch, 3/1 twill, and this twill cloth was used as a top cloth, and this was used as a pore. Rate 80
%, And laminated (adhered) to a stretched porous polytetrafluoroethylene membrane having a maximum pore diameter of 0.2 μm and a film thickness of 40 μm by a known laminating equipment to obtain a needle-resistant moisture-permeable waterproof cloth according to the present invention.

The thickness of the ultrahigh-density cloth was measured with a dial gauge. The same applies to the following.

Production Example 2 A plain woven cloth having a thickness of 0.27 mm was prepared at a density of 200 × 140 filaments / inch with a single fiber of 1 denier fine fiber of 60 d / 60 filaments. A fluoroethylene membrane was laminated to obtain a needle-resistant moisture-permeable waterproof cloth according to the present invention.

Production Example 3 A non-woven fabric having a thickness of 0.20 mm impregnated with 30% of polyurethane and having 0.35 denier single fiber was laminated on the same stretched porous polytetrafluoroethylene film as in Production Examples 1 and 2, and the needle-resistant moisture-permeable moisture of the present invention was obtained. I got a waterproof cloth.

Production Example 4 The stretched porous polytetrafluoroethylene membrane of Production Example 1 coated with a polyurethane hydrophilic resin having a thickness of 8 μm was used.
The same twill cloth as above was laminated as a surface cloth to obtain a non-breathable, needle-resistant, moisture-permeable, waterproof cloth according to the present invention.

Further, the following Comparative Examples 1, 2, and 3 were prepared for the above-described present invention.

Comparative Example 1 Nylon Oxford was laminated with the same expanded porous polytetrafluoroethylene membrane as in Production Example 1 at 8 denier single fiber, 210 d / 24 filament, 64 × 59 filaments / inch, to give a moisture-permeable waterproof cloth.

Comparative Example 2 A 3/1 twill having a denier of 6 denier, 210d / 36 filament, 158 × 68 filaments / inch and a thickness of 0.23 mm was laminated on a stretched porous polytetrafluoroethylene membrane to obtain a waterproof and vapor-permeable cloth.

Comparative Example 3 A fabric prepared by applying a 20 μm-thick vinyl chloride coating to a 0.20 mm-thick nylon oxford having a density of single fiber of 8 denier, 210 d / 24 filament, 65 × 60 filaments / inch, and a thickness of 0.20 mm was prepared.

However, the moisture-permeable and waterproof fabrics according to each of the production examples according to the present invention and the comparative examples obtained as described above were tested for moisture permeability and waterproofness, and were also placed on a stand with 20 pins formed in a sword mountain shape. The ground was set, a load of 1.5 kg was applied for 30 seconds, and a water pressure of 0.2 kg / cm ^{2 was} applied to count the number of leaks.The results of needle resistance evaluation and measurement were summarized and shown in the following table. Thus, the device according to the present invention has excellent moisture resistance and waterproofness, and also has excellent needle resistance, whereas those of Comparative Examples 1 and 2 have waterproofness even if they have waterproofness. The needle property was inferior, and that of Comparative Example 3 was remarkably inferior in moisture permeability, and insufficient in needle resistance.

`` Effects of the Invention '' When the present invention as described above is used, the waterproof fabric has a preferable waterproof and breathable property and has a stable needle resistance while being a waterproof fabric that can be worn comfortably at the time of sweating,
Even if it enters a crowded area of barbed plants, its performance is not hindered and the wearer is prevented from being damaged, and it is possible to provide a fabric having excellent durability and industrially, This is a highly effective invention.

[Brief description of the drawings]

The drawings show the technical contents of the present invention.
FIG. 4 is a cross-sectional view showing an enlarged part of a cloth according to the embodiment of the present invention. However, in these drawings, 1, 1a, and 1b are high-density fabrics, 2 is an expanded porous polytetrafluoroethylene film, 3 is an adhesive portion, and 4 is a hydrophilic resin layer.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-204941 (JP, A) JP-A-63-222713 (JP, A) JP-B-60-39014 (JP, B2) (58) Field (Int.Cl. ⁶ , DB name) D06M 11/00-17/10

Claims (2)

(57) [Claims] An ultra-high-density cloth having a thickness of 0.1 to 1.0 mm using a yarn composed of a single fiber having a thickness of 0.01 to 1.5 denier, and a continuous porous polytetrafluorocarbon having a thickness of 10 to 120 μm. A needle-resistant cloth having moisture permeability and waterproofness, characterized by laminating an ethylene film. 2. The moisture-permeation and waterproof property according to claim 1, wherein at least one surface of the continuous porous polytetrafluoroethylene membrane is laminated with a hydrophilic resin layer having air impermeability and moisture permeability. Needle-resistant fabric having