JPH0226737A - Seat skin material - 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 [Field of Industrial Application] The present invention relates to a seat covering material made of fabric, particularly to a seat covering material for automobiles, aircraft, ships, and other vehicles.

[Conventional technology]

The seat covering material made of fabric is tightly woven to ensure dimensional stability and abrasion resistance, that is, to prevent wear during use and to prevent loosening due to expansion and contraction.A backing agent is applied to bond the fibers together. and finished.

In this case, in order to prevent the seat skin material from becoming rough and hard,
In addition, in order for the adhesive to form a flexible coating film, the adhesive is prepared without or with a very small amount of filler, so that the amount of dry resin is generally 60 to 100 g/m2. It is coated or applied with def ping.

[Problem to be solved by the invention]

In this way, since the finish is applied by applying an adhesive with a high concentration of resin components, the air permeability of the conventional chair upholstery is 10cc/cm.
It is low, at less than cm2·see, and gives a feeling of stuffiness in the summer, and especially the seat cover material of vehicles where people sit in a fixed position for a long time gives a feeling of discomfort.

The present inventor has conducted various studies regarding the discomfort caused by this seat skin material, and found that the main factors related to discomfort are firstly hygroscopicity, secondly breathability, and thirdly heat dissipation or thermal conductivity. Experimental results have shown that these factors are not significantly affected by filling the back of the seat trim cover or changing the John material.

[Purpose of the invention]

Based on such experimental results, the present invention aims to apply the necessary backing agent to provide physical qualities such as shape and dimensional stability or abrasion resistance, but also to improve the sheet surface, which is a quality characteristic factor related to touch and texture. Hygroscopicity of the material and iJt! To obtain a seat covering material that secures temperament and does not feel stuffy even when seated for a long time.

[Structure of the invention]

The sheet skin material 20 according to the present invention achieves the above object, and the core thread 12 (11) is made of cellulose fibers, and the surface of the core thread 12 (11) is coated with wool fibers, synthetic fibers, etc. A backing agent made of an emulsion-type resin composition is applied to the back side of the fabric 17, which is woven and knitted with core-sheath yarns 16 (15) covered with entangled fibers 14 (13) other than cellulose fibers, and the air permeability is 10 cc. /cm2・sec, and the backing coating 111118 of the backing material is made with penetration marks 19 of a spike roll needle to make the air permeability 15cc/cm2・sec.
It is characterized by having a finish of grade c or higher.

The core-sheath thread is used so as to account for a blending ratio of 1 (if amount%) or more of the fabric weight, and when the fabric is not composed only of the core-sheath thread, that is, the core-sheath thread is used in either the warp 15 or the weft 16. When using a thread, it is desirable to use a core-sheath thread for the weft 16. In that case, it is best to use one core-sheath thread for every several weft threads. Furthermore, in the case of pile fabrics, it is preferable to use core-sheath yarns as pile yarns to form loop piles.

Linen, ramie and other jutes, cotton, rayon, and even washi tape can be used as the cellulose fibers (11), and the surface of these fibers is completely covered with wool fibers, synthetic fibers, etc. (13). To achieve this, the weight ratio of the cellulose fibers 12 (11) constituting the core-sheath threads 16 (15) and wool fibers, synthetic fibers, etc. 14 (13) should be 1:3 to 3.
Make it about 1:1.

The length of the needle of the spike roll used is the required length to penetrate the fabric 17 and the coating film 18 of the backing agent, and the needle is passed through several spike rolls and pierced several times overlappingly,
In that case, it is preferable that the needle of the spike roll pierces the fabric 17 from the front side toward the coating film 18 on the back side.

In the actual test, the needle thickness was 0.2 φ-I+ (number 23)
, the needle tip shape is conical, and the number of needles is 2.5 fi in both the weft and weft directions.
I am getting good results using Pituchi's Spike Roll.

However, the specifications of such needles do not limit the technical scope of the present invention.

If the coating film 18 of the backing agent has low viscoelasticity, the needle may be pierced several times from the Y1 side of the sheet covering material.

〔Effect of the invention〕

Although cellulose fibers have superior hygroscopicity compared to wool fibers and synthetic fibers, they are inferior in color fastness, especially light fastness, and therefore cannot pass through vehicle seat covering materials, which are particularly exposed to direct sunlight. In the present invention, the surface is coated with wool fibers or synthetic fibers that have excellent light fastness, so the drawbacks of cellulose fibers are eliminated and the hygroscopicity of the wool fibers or synthetic fibers that cover the surface is complemented. On the other hand, even if the cellulose fibers absorb moisture, the surface of the sheet skin material is made of wool fibers that do not easily absorb moisture, so the absorbed moisture does not come into direct contact with the skin, so it lasts for a long time. You can sit for hours and not feel stuffy.

Furthermore, in the present invention, the backing coating of the sheet covering material is broken by the needles of a spike roll to create a gauge, thereby imparting breathability. In that case, the needle of the spike roll breaks some of the fibers and makes them continuous on the front and back sides, so the measurement that occurs at that time is because the backing agent has formed a strong film with excellent viscoelasticity. The fibers that pass through the fabric do not get caught and close, and the breathability provided by the metering is not impaired.

Incidentally, the breathability of conventional moquette and twillweep is 5.
The air permeability is about cc/cd-sec, but by passing it through spike rolls, the air permeability can be increased to 20cc/cm2.
・Improved to about sec.

As is clear from the above, the seat skin material according to the present invention is
Although it has the required physical strength due to the coating of a backing agent, it is highly breathable and does not give a stuffy feeling even when seated for a long period of time, making it particularly convenient for vehicle seats.

[Brief explanation of the drawing]

FIG. 1 is a partially enlarged sectional view of a seam 1-skin material according to the present invention. 11/12... Core yarn (cellulose fiber), 13/1
4... Sheath (wool fiber/synthetic fiber), 15/16...
Core/sheath yarn, 17... Fabric, 18... Paint film, 19... Penetration marks, 20... Sheet skin material.

Claims (1)

[Claims] A core in which cellulose fiber is the main material of the core thread 12 (11), and fibers 14 (13) other than cellulose fibers such as wool fibers and synthetic fibers are entangled and coated on the surface of the core thread 12 (11). Fabric 17 woven and knitted with sheath threads 16 (15)
A backing agent made of an emulsion type resin composition is applied to the back side of the material to give an air permeability of less than 10 cc/cm^2.sec, and penetration marks 19 of a spike roll needle are made on the back coating film 18 of the backing agent to achieve an air permeability of 15 cc/cm/sec. A seat skin material characterized by a finish of cm^2・sec or more.