JPS60173173A - Wind-proof processed knitted fabric and its production - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a windproof knitted fabric with reduced air permeability for one purpose and a method for producing the same.

Conventionally, sportswear such as training shirts have been sewn from knitted fabric with a certain degree of elasticity, and have relatively high breathability (100 to 300 cc/4/s ecJIS).
L-1018), when exposed to strong winds in winter, cold air penetrates through the stitches, making it feel very cold. In addition, in waterproof sports outerwear, the fabric is completely covered with solidified synthetic resin, which inhibits the elasticity characteristic of knitted material, making it uncomfortable to wear, and can also cause wear during strenuous activities such as jogging. There were some drawbacks, such as being easily damaged.

It is an object of the present invention to address the above-mentioned problems.

That is, this invention provides a windproof knitted fabric in which a synthetic resin in emulsion or solution form is applied to one side of the knitted fabric and solidified to fill the gaps between the stitches, and a synthetic resin in emulsion or solution form is injected into the fabric. A resin coating device is equipped with a resin coating device consisting of a rotary screen drum with a large number of fine holes perforated on its circumferential surface, and a presser roller that presses and interlocks with this screen drum from below.
Manufacture of windproof knitted fabric using a spatula-shaped fixing plate that is inscribed in the screen, and using this fixing plate to discharge synthetic resin from the screen, rubbing it onto the knitted fabric passing through, and subjecting it to post-processing such as drying. It's a method.

Hereinafter, a practical example of this invention will be explained based on the accompanying drawings. As shown in FIGS. 1 and 2, the windproof knitted fabric of the present invention has a thermoplastic synthetic resin 3 in emulsion or solution form on the back side 2 of a weft knitted fabric made of knitting yarn 1 such as processed polyester yarn. It is applied and solidified to fill the first stitch gap, and a part of the yarn 4 of the knitting yarn 1 on the back surface is exposed. This synthetic resin 3 is a relatively thin layer that only fills the stitch voids on one surface 2, and has a thickness of 20 to 10% relative to the yarn weight.
It was molded to a weight ratio of 0.00%, with no leaching on the surface 5 side, no change in the stitches in appearance, and no major change in elasticity. In addition, this synthetic resin 3 is strongly adhered to the knitting yarn 1, so it will not fall off even after repeated washing, and there will be little change in breathability after that (see examples) a
In this windproof knitted fabric, the back side of the knitted fabric is not entirely covered with synthetic resin and a portion of the knitting yarn 1 is exposed, so it is thought that a small amount of air permeability remains.

l] Materials for iJ knitted fabrics include synthetic fiber filament yarns such as polyester nylon and acrylic filament processed yarns, spun yarns, and natural fiber spun yarns such as cotton and wool;
A blend of these yarns is used. Further, as the knitted fabric, it is applied to weft knitted fabrics such as flat knitted or double-sided knitted fabrics, and warp knitted fabrics such as tricot.

As the main resin for the treatment agent for the synthetic resin 3, acrylic ester resin, silicone resin, urethane resin, etc. are suitable. In addition, as an auxiliary resin, it assists the film formation of the main resin and improves the functions such as crosslinking and impact resilience of this film.
A crosslinking agent such as melamine resin or polyester resin, and an elastic resin such as heat-reactive water-soluble urethane resin are added. In addition, softeners, plasticizers, water repellents, thickeners, and the like may be added as appropriate (see Examples for details). Thickener is a substance that adjusts the viscosity of the processing agent and gives it appropriate adhesion.
C. Gluing agent such as sodium alginate.

Alkaline thickening resin is used, and the amount added is adjusted depending on the type of knitted fabric.

The above-mentioned windproof knitted fabric is a type of synthetic resin.

By selecting the mold weight of the synthetic resin, etc., the air permeability can be adjusted as appropriate. This windproof knitted fabric is used for training wear.

There are sportswear, windbreakers, slacks, fishing gear, etc.

Next, as shown in FIG. Resin application section 12/post-processing section 13
and a dough shaking section 14.

As shown in FIGS. 3 and 4, the resin f cloth portion 12 includes a rotary screen drum 16 having a large number of fine holes 15 in its curved surface, and a presser foot interlocked with pressure contact with the screen drum 16 from below. It consists of a roller 17. A mixing tank 19 is attached to the screen drum 16 for replenishing the resin treatment agent 18 into the interior thereof. It is rotationally driven by the gear 23 to the same surface speed as the presser roller 17.

According to this resin application unit 12, since the screen drum 16 rotates in accordance with the progress of the fabric 24, the resin treatment agent 18 in one screen drum 16 is pressed against the spatula-shaped fixed plate 21 and is discharged from the fine holes 15, and the fabric 24 is coated with the resin treatment agent 18. It is applied by rubbing it on one side (mainly the back side).

The post-processing section 14 includes a drying device 25 and a baking device 2.
6 and power).

In this resin application section 12, the problem lies in uniformly applying an appropriate amount of treatment agent to the stitches to reduce air permeability. Open area ratio (screen unit [
(perforation area ratio per ladle) and coating rate (resin coating weight per unit weight of fabric) are appropriately selected. In addition, the porosity is 10~
Viscosity 3.000-15.0O using 20% screen
It seems suitable to have an OCp of 820°C and a coating rate of 20 to 100%, for example, ``Double-sided knitted knitted fabric made of polyester processed yarn with an air permeability of 2 to 50''/c#/SeCC unprocessed product 150 to 170cc/d/5ec. ) can be obtained.

Hereinafter, the present invention will be specifically explained with reference to Examples.

Example 1 Fabric: 3-tier double-sided knitted stockinette fabric (polyester processed yarn 1
50 100%) Treatment agent Niacrylate ester resin 40 parts by weight Urethane resin 5 Softener 5 ~ Thickener 25 ・L Water 20 -/ (Viscosity 5000 cps, 20°C) Enamel: Coating conditions using screen drum Coating rate 30 ~35% Drying process: 100℃ for 2 minutes, curing at 150℃ for 1 minute, air permeability; (c c /cJ/sec) Frazier type air permeability test machine washing, fully automatic washing machine (Hitachi, Aozora) 30℃ x 8 minutes (Detergent/New Beads 2P//) Rinse 3 minutes x 2 times
Dehydration centrifugal dehydrator (performed after each discharge) Drying is air drying Example 2 Fabric: 3-tier double-sided knitted knitted fabric Surface (polyester processed yarn 150) Back (polyester 50 cotton 5030) Treatment agent Niacrylate ester resin 50 parts by weight Softener
5 〃 Thickener 25 〃 Water 20 // (Viscosity 10.000CP8, 20°C) Treatment method; Application conditions using screen drum Application rate 40-45%
Drying process ioo℃ 2 minutes curing 150℃ Air permeability during processing: (cc/d/sec) Washing conditions are the same as Example 1 Example 3 Fabric = 3-tier double-sided knitted stockinette fabric [Polyester textured yarn 1
50 ioo%) Treatment agent: Urethane resin 70 parts by weight Acrylic acid ester resin 20 η Polyester resin 1q Alkaline thickening resin 2 Quanmonya water 0.5〃 Softener 10 # (Viscosity 8.000 CF2.20 'C') Treatment method Coating conditions for Niclean drum Coating rate 50-60% Drying process 100°C 2 minutes curing 150'C 1 minute Air permeability: (CC/cd/sec) Washing conditions are the same as Example 1 Example 4 Fabric: 3 layers both sides Knitted knitted fabric surface (polyester processed yarn 150d) Back (polyester, 5,0 cotton 5030/S) Treatment agent: Silicone resin 60 parts by weight Surfactant thickener 10 Water 30 (Viscosity 4, ooocps 20°C) Treatment Method: Wall fabric using Niclean drum Conditions: Coating rate: 60-70%
Drying process 100℃ 2 minutes curing 150℃ 1 minute Air permeability: (Cc/cd/sec) Washing conditions are the same as Example 1 Example 5 Fabric 2 3-layer double-sided knitted knitted fabric (polyester processed yarn 150 d) Back ( Polyester 50 Cotton 50308) Treatment agent Niacrylic acid ester resin 50 parts by weight Polyester resin 1 Surfactant thickener 10 Water 40/l (Viscosity 5 oocps 20°C) Treatment method; Coating conditions using screen drum 50%
Drying process 100°C for 2 minutes Curing 150°C for 1 minute Air permeability: (Cc/d/sec) Washing conditions are the same as Example 1

[Brief explanation of the drawing]

Fig. 1 is an enlarged view of the back side showing an example of the windproof IJ sand ground disaster application of the present invention, Fig. 2 is a vertical cross-sectional view of the same as above, and Fig. 3
The figure is a schematic diagram of the resin processing apparatus same as above, and FIG. 4 is a front view of the screen drum. 1... Knitting yarn 2... Back side 3... Synthetic resin 11
...Fabric supply section 12...Resin application section 13...
Post-processing section 14...dough shaking section 15...microhole 1
6... Soft 1) - Citram 17... Presser roller
20...Suffu+4-n 21...Fixing plate Patent applicant: Sakahonsen Senkagaku Co., Ltd. Agent: Kama 1) Text 2

Claims (2)

[Claims] (1) A windproof knitted fabric in which an emulsion or solution synthetic resin is applied to one side of the knitted fabric, filling the gaps between the stitches and solidifying it. (2) A rotary screen drum into which an emulsion or solution synthetic resin can be injected and which has a large number of fine holes on its surface, and a presser roller that is interlocked with pressure from below on this screen drum. A resin wall fabric device is provided, the screen drum is equipped with a spatula-shaped fixing plate inscribed in the screen, and the fixing plate causes synthetic resin to be discharged from the screen and rubbed into the knitted fabric passing through the wall fabric, A method for manufacturing windproof knitted fabric that involves post-processing such as drying.