JP3395064B2 - Curtain core - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain core material sewn on the upper end side of curtain cloth.

[0002]

2. Description of the Related Art Since a conventional curtain is hung on a curtain rail, the upper end portion of the curtain material F is folded downward as shown in FIG. 5, and a core material B is inserted between the folded portion f and the curtain material F, that is, , The core material B is sewn in a sandwich state, or the tip of the folded portion f is sewn to the curtain material F to form a bag portion, the core material B is put in the bag portion, and the upper end portion of the curtain C is formed. After the reinforcing portion D is formed on the ridge, the reinforcing portion D is curved and sewn in the front-back direction, and creases are provided at required intervals.

In a conventional curtain core material, as shown in FIG. 4, first, a wide and long core fabric T is woven by a warp yarn 1 of multifilament and a core-sheath type composite fiber 7 having a molten layer on the outer periphery of the core yarn.
At that time, a weft densely woven portion in which the core-sheath type composite fiber 7 is densely woven is provided according to the core material width H, and then the wide and long core fabric T is heated to form a molten layer of the core-sheath type composite fiber 7. The core yarn 8 was melted and the core yarn 8 and the warp yarn 1 were also fixed, and the intermediate width portion of the dense weave portion of the wide and long woven fabric T was cut along the core yarn 8 to cut the core material B. As a result, the warp thread 1 is cut,
Cuts 1a of the warp thread 1 were formed on both sides of the core material B.

[0004]

When the middle width portion of the weft yarn densely woven portion of the wide and long core material is cut along the weft yarn, the cut end of the warp yarn is formed on the cutting side, so that the curtain core material is When sewn to curtain fabric, the cut end of the warp thread is locked to the curtain fabric and there is a problem that it interferes with sewing.Although the core thread is fixed to the warp thread due to melting of the melted layer, Because it is not in a fixed state,
When a certain amount of force is applied, there is a problem that the core collapses, and the collapse of the core reduces the reinforcing function of the core material, impairs the aesthetics and lowers the product value. Further, since the core yarn of the core-sheath type composite fiber is a multifilament, there is a drawback that tension in the longitudinal direction cannot be obtained. Therefore, the present invention has been made in view of such problems of the prior art, and an object of the invention is to provide a curtain core which has flexibility and a constant tension in the length direction and which does not cause collapse of the curtain core. Is to provide wood.

[0005]

In order to achieve the above object, the curtain core material of the present invention is, as claimed in claim 1, obtained by heat-processing a tape-shaped woven fabric of an appropriate width woven by warp yarns and weft yarns. The weft is composed of a core-sheath type composite fiber having a molten layer on the outer periphery of the core yarn, and a monofilament woven together with the composite fiber, and is folded back through the end warp yarn,
It is woven in a meandering shape, and the molten layer of the core-sheath type composite fiber is melted by heating to fix the core yarn and the monofilament and also the warp yarn.

According to a second aspect of the present invention, in the curtain core material according to the first aspect, the weft yarn is formed of three or more yarns with a plurality of at least one of the core-sheath type composite fiber and the monofilament, and the core yarn is formed by melting the molten layer. Three or more threads consisting of monofilament are integrally fixed. As claim 3, in curtain core of claim 1, the warp and the core yarn is a multifilament.

Here, the curtain core material means a long tape-like material having a constant width and attached to the curtain material. Here, the weft thread means a thread running in the width direction of the cloth during weaving, the warp thread means the thread running in the length direction of the cloth at weaving, and the core-sheath type composite fiber means a core. It has a molten layer having a lower melting point than the core yarn on the outer circumference of the yarn. Here, the multi-filament refers to a filament composed of two or more filaments, and the monofilament is a filament that can be used alone, and a fishing line (tex).
Say something like.

[0008]

The exemplary <br/> form of curtain core according DETAILED DESCRIPTION OF THE INVENTION The present invention will be described based on FIGS. 1 to 3, a tape-shaped textile T of appropriate width H woven by the warp 1 and weft 5 The heat-processed weft yarn 5 is composed of a core-sheath type composite fiber 7 having a melt layer 9 on the outer periphery of a core yarn 8 and a monofilament 6 woven together with the composite fiber 7, and the end yarns 2a, 2
After passing through b, it is folded back and woven into a meandering shape, and the molten layer 9 of the core-sheath type composite fiber 7 is melted by heating and melted.
Thus, the core yarn 8 and the monofilament 6 are fixed together, and the warp yarn 1 is also fixed.

A multifilament made of polyester fiber is used as the core yarn 8 of the core-sheath type composite fiber 7, and the melt layer 9 is used.
As the core yarn 8, a polyester having a melting point (130 to 210 ° C.) lower than that of the core yarn 8, the monofilament 6 or the warp yarn 1 was used. The weft yarn 5 is folded back over the endmost warp yarns 2a, 2b in the width direction of the fabric, that is, it is folded back over the warp yarn 2a positioned at one end of the width H and the warp yarn 2b positioned at the other end, and meandered. The warp yarn 1 and the endmost warp yarns 2a and 2b are fixed to each other by the melted portion 19 of the melted layer 9.

Delete.

Since the curtain core material of the present invention has the above-mentioned structure, first, the monofilament 6 and the core-sheath type composite fiber 7 are used as the weft thread 5, and the weft thread 5 and the warp thread 1 form the woven fabric T having the curtain core material width H. Weaving, and then the woven fabric T is heat-treated at a required temperature (higher than the melting point of the melting layer 9 and lower than the melting points of the monofilament 6 and the core yarn 8 and the warp yarn 1) to obtain only the melting layer 9 of the core-sheath type composite fiber 7. Is melted, and the monofilament 6 and the core yarn 8 are fixed by the melting portion 19 to integrate the monofilament 6 and the core yarn 8 with each other.
The warp thread 1 is also fixed by. The weft thread 5 after heat processing is
Since it comprises the core yarn 8 and the monofilament 6, it has a relatively large tension as compared with the conventional core material having only the core yarn 8 as the weft yarn while having flexibility in the length direction, and the waist in the longitudinal direction is secured. Becomes stronger.

[0012]

EXAMPLE At least one of the core-sheath type composite fiber 7 of the weft yarn 5 and the monofilament 6 is plural, the weft yarn 5 is composed of three or more yarns, and the core layer 8 and the monofilament 6 are formed by melting the melting layer 9. It is also possible to integrally fix three or more threads consisting of As core-sheath type composite fiber 7, melt layer 9
The bell-belt brand name "Bell Couple" using a low-melting point polyester polymer was used for the core yarn, but the bell-belt brand name "Bell Couple" using the low-melting point polyester polymer for the core yarn 8 and the polyester layer for the melt layer 9 was used. It is also possible to use "Bell Couple NP", a brand name of Kanebo, which uses a polyester polymer for the core yarn 8 and a polyamide polymer for the melt layer 9. The melting point temperature difference between the molten layer 9 and the other yarns (warp yarn 1, monofilament 6, core yarn 8) is
In order to easily melt only the molten layer 9, the temperature is set to 30 ° C. or higher.

[0013]

Since the curtain core material according to the present invention has the above-mentioned structure, it has the following effects. The curtain core material according to claim 1 uses a monofilament along the core-sheath type composite fiber as the weft thread, and melts the molten layer of the core-sheath type composite fiber by heat treatment to fix the monofilament and the core thread together. Since the warp yarns are also fixed, the fabric structure is very stable, and the collapse of the fabric can be prevented while maintaining the flexibility in the longitudinal direction. Even if a monofilament is used together with the core yarn, the bending in the longitudinal direction is still soft, so sewing is easy and the pleats when the tack is removed are beautiful. Since there is no warp thread cut at the end in the width direction, the warp thread cut does not hurt your fingers or lock onto the curtain cloth when it is attached to the curtain cloth, and as a result, mounting on the curtain cloth is extremely easy and easy. Become. Moreover, after the installation, a curtain surface that looks good is formed.

According to the curtain core material of claim 2, since the weft yarn is formed of three or more yarns consisting of the monofilament and the core yarn, it is more flexible in the longitudinal direction than the conventional fabric using a plurality of multifilament yarns. Will be secured.

[Brief description of drawings]

1A and 1B are a front view and a vertical cross-sectional view of a main part of a curtain core material according to an embodiment of the present invention before thermal processing.

2A and 2B are a front view and a vertical cross-sectional view of a main part after thermal processing.

FIG. 3 is a front view of the main parts showing the outline of the curtain core material of the present invention.

4A and 4B are a front view showing a processing example of a conventional curtain core material and an enlarged view of a Y portion thereof.

FIG. 5 is a perspective view showing an example of use of a curtain core material.

[Explanation of symbols]

1 warp thread 2a, 2b End warp yarn 5 weft 6 Monofilament 7 Core-sheath type composite fiber 8 core yarn 9 melted layer, 19 melted part T textile H fabric width

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Claims (3)

(57) [Claims] 1. A tape-shaped woven fabric (T) having an appropriate width (H) woven by a warp yarn (1) and a weft yarn (5) is heat-processed, and the weft yarn (5) is an outer periphery of a core yarn (8). A core-sheath type composite fiber (7) having a melt layer (9) in the inner part, and a monofilament (6) woven together with the composite fiber (7),
The endmost warp yarns (2a, 2b) are folded back and woven in a meandering shape, and the melted layer (9) of the core-sheath type composite fiber (7)
Is a curtain core material which is melted by heating to fix the core yarn (8) and the monofilament (6) together with the warp yarn (1). 2. The weft yarn (5) is formed by three or more yarns with at least one of the core-sheath type composite fiber (7) and the monofilament (6) being a plurality, and the core yarn ( 8. Three or more threads consisting of 8) and a monofilament (6) are integrally fixed.
Curtain core material described. 3. The warp thread (1) and the core thread (8) are multifilaments.
The curtain core material according to claim 2, which is an filament .