JPS637485A - Vertical blind and manufacture thereof - 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 (a) Field of Industrial Application The present invention relates to a vertical blind using glass fiber and a method for manufacturing the same.

(b) Conventional technology Vertical blinds using conventional fibers are made by impregnating vinyl chloride resin, etc. into a base cloth made by weaving fibers using a loom.
Manufacturing methods include fixing it in place or laminating vinyl chloride sheets on both sides. However, due to the purpose of use, minute weaving defects, dirt, etc. can cause product defects, and extremely high quality fabrics are required.The conventional shuttle looms have problems with thread stains at the tube replacement part and inside the shuttle box. The defect rate is extremely high, making weaving difficult.

By using innovative looms such as air jet looms and rapier looms to eliminate these weaving defects, it is recognized that the weaving defects have been largely eliminated. When weaving fibers with extremely low elongation, such as

There is a problem that there is little shrinkage in the weave and the edges tend to loosen, requiring considerable effort to obtain a well-balanced fabric.

In addition, in the case of glass fiber, it is very difficult to use untwisted yarn due to the large number of single yarns in its composition, so twisted yarn is used. However, when twisted yarn is used, the untwisting torque of the warp and weft yarns is This appears as twisting of the fabric.

It is necessary to adjust the twist balance of warp and weft yarns. In this case, problems remain, such as a loss of balance due to extremely small differences in weaving and processing conditions, resulting in frequent twisting defects.

One of the ways to eliminate these twists is to mutually use S-twist yarn and 2-twist yarn for warp and weft yarns, or to use double-twist yarn with low torque. Although it is possible to obtain a good appearance effect, the problem of twisting remains difficult to solve.

(c) Problems to be solved by the present invention The present invention aims to solve the above-mentioned problems regarding the method for manufacturing vertical blinds, and to manufacture and provide high-quality vertical blinds at low cost. .

B) Means and action for solving the problem The present invention consists of standing two or more twisted yarns of glass fiber multifilament on a creel, pulling them out at the same time and aligning them at an appropriate arrangement density using a specified reed; The layer is immersed in a resin solution under tension so as not to disturb the alignment, and then rolled up after drying.

In the present invention, since the warp threads are warped and impregnated and dried at the same time, one step is omitted compared to the weaving and impregnating steps of the conventional method, resulting in extremely high productivity and reduced production costs. In particular, since complicated processes such as the weaving process, which have been a major problem in the past, are omitted, defects such as weaving defects and stains are also eliminated.

In addition, to solve the problem of torsion, it is only necessary to consider the behavior of the warp yarns, so it is necessary to give the warp yarns a reverse twist to each other, and consider the balance and twist the yarns so that the IOT/M or less becomes less than IOT/M. This problem can be solved by arranging one or two two twists alternately, and there is no need to consider the intertwining relationship with the 'Ic weft, as in conventional weaving. There is no need to specify the number of glass fibers to be used, but it is recommended to use 10
-100 tex count is good; other than that, it is difficult to obtain desired performance in terms of weight and light shielding properties. Although the array density has a correlation with the resin to be impregnated, it is necessary to set KF = 5 to 10 in order to set the light shielding effect and the amount of resin impregnated within an appropriate range.

The amount of resin impregnated varies depending on the type of glass fiber used and the arrangement density, but the light shielding property is 2-strength.

The range that satisfies workability is 20 to 200 for glass fiber.
A range of % is an appropriate range. The resins to be impregnated are vinyl chloride, polyester, acrylic, urethane, polyethylene, Hypalon rubber, and epoxy.

Phenol and the like can be used alone or in an appropriate combination.

In addition, it is easy to impart not only fashion properties such as embossing and printing, but also stain resistance, water repellency, etc. as appropriate.

Vertical blinds are normally used with a width of 40 to 120 mm, but conventional products require cutting fabrics that are 100 mm or more thicker than the production surface during the specification after processing, but they need to be cut accurately along the warp. It's difficult.

This is also one of the causes of defects such as loosening and twisting from the end surface.

Since the product of the present invention aligns only the warp threads, it is extremely easy to separate the warp threads during the stipulation or during the stipulation process, and simultaneously process a large number of warp threads at the same time.Therefore, it is not necessary to cut the warp threads as in the conventional method. There is no need for effort to make accurate cuts.

As described above, the present invention provides a method for manufacturing vertical blinds and sleds that have extremely high productivity, low cost, and excellent twisting and dimensional properties compared to conventional methods.

Hereinafter, it will be explained in more detail based on examples.

(e) Examples Example 1 A multifilament yarn of 33.75t tear tx count glass fiber consisting of a single yarn of 9μ in diameter for the warp.

After twisting S twist and Z twist at 40 T/M each as the first twist, the first twist KZ20T/M twist L type Ij KF = 6.1) was immersed in a vinyl chloride resin bath under tension of 80 I/piece at intervals for each block, and the impregnated amount was set appropriately using a calendar, then dried, cooled, rolled up, and cut into the usable length. It was then subjected to a vertical blind. The product was a vertical blind with excellent light blocking properties, no twisting whatsoever, and a curled appearance.

In addition, the torque measurement method applies a grasping load of 1/3 g per tex number, and the sample length is 100 cm (200 crn round trip).
At this point, a sample rotation load of 1730 g is applied, and after the sample rotates due to the residual torque and stabilizes, the torque is untwisted using a twister and the number of twists is measured.

The number of times was 3 times and the average value is expressed.

Example 2 675 tex count glass fiber multifilament yarn composed of a single yarn with a diameter of 9μ in the warp yarn with a S of 40T/M
Twisted and 2-twisted yarns, that is, one S-twisted yarn and one 2-twisted yarn are arranged alternately, p 110ii + 219 strands are arranged between them (KF = 6.7) L 809 / vinyl chloride under tension Impregnated in a resin bath and calendered to 15% by weight
The sample was picked up, dried and cooled, and then placed in a vertical blind. The result was a blind with excellent appearance and performance.

(F) Effects of the Invention As mentioned above, the present invention is composed only of warp yarns made by immersing glass fibers of 10 to 10.0 tex in a vinyl chloride resin bath and heat-setting them under tension of 19/tex or more. This article relates to vertical blinds and their manufacturing method, which are characterized by the fact that they is also very good.

The fibers to be removed are made of glass fiber multifilament with a tex count of 10 to 100.

When a material with a cover factor (KF) of 5 to 10 is used, desirable performance can be obtained in terms of weight and light-shielding strength. Those outside this range are inferior in these aspects.

Furthermore, the glass fiber multifilament used for the warp consists of two or more combined threads, and the residual torque is reduced to IOT.
By alternately using one or two S-twisted yarns and Z-twisted yarns as shown below, the following effects are produced.

That is, if the unwinding torque due to the twisting of the warp threads remains, twisting will occur, making it impossible to use it as a vertical blind. Therefore, in order to suppress the twist to 10 or less, at least when twisting two S-twisted yarns or two 2-twisted yarns, balance must be obtained by first twisting two yarns, or alternately using one or two S-twisted yarns or 2-twisted yarns. Try to get balance by using it. Even with three or more wires, the overall balance is good, but there is a slight risk of twisting.

The impregnation rate of the resin that impregnates and fixes the warp is 2° to 20°.
A sufficient impregnating and fixing effect is produced at zero weight ratio. If the impregnation rate is less than 20 inches, it cannot be fixed sufficiently.

If it exceeds 200%, the weight becomes heavy, and depending on the type of resin, hardness may occur, causing problems in terms of strength.

Claims (6)

[Claims] (1) A vertical blind consisting only of warp yarns made of glass fiber multifilament yarns equally spaced in the warp direction with a width of 40 to 120 mm and impregnated with resin under a tension of 1 g/Tex count or more. (2) The glass fibers used in the warp direction are made of multifilament glass fibers with a tex count of 10 to 100, and have a cover factor (K_F) of 5 to 10 at a constituent density, Claim 1 Vertical blinds as described. However, the cover factor K_F is defined as KF=N/√Td, where the warp arrangement degree N (thread/inch) and the texture count Td. (3) The glass fiber multifilament used for the warp is
The vertical blind according to claim 1, which is composed of two or more twisted yarns and has a residual torque of 10 T/M or less. (4) The vertical blind according to claim 1, characterized in that the glass fibers used for the warp are one or two single S-twisted yarns and Z-twisted yarns alternately used. (5) The resin that impregnates and fixes the warp threads under tension is made of vinyl chloride, urethane, acrylic, polyester, epoxy, phenol, melamine, and fluorine resin, either singly or in combination, and the impregnation rate is The vertical blind according to claim 1, characterized in that the weight ratio of the glass fibers is in the range of 20 to 200%. (6) A method for manufacturing a vertical blind consisting only of warp yarns made of glass fiber multifilament yarns equally spaced in the warp direction with a width of 40 to 120 mm and impregnated with resin under a tension of 1 g/Tex count or more.