JP2013165944A - Curtain formed of vertical swelling portions and flat portions - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain inexpensive, excellent in warmth retention and heat insulation, and having an interior characteristic.SOLUTION: A weft yarn having a large heat shrinkage and a weft yarn having a large filament count, are woven between chain-stitched warp yarns at certain intervals on the back side, the woven stitches are grown vertically, the fabric is heat-treated to shrink the weft yarn having a large heat shrinkage, the weft yarns having a small heat shrinkage and the large filament count, fill a hollow portion like wadding to swell the fabric in a vertical direction, and the swelling portion has a cross-section of substantially D-shape holding air therein, and is arranged vertically.

Description

The present invention relates to a curtain used indoors at a window.

Curtains that are used indoors at the windows, etc., are required to block light and heat rays from the outside, block heat from the inside and outside of the room, and cut the field of view from the outside to the inside, as well as interior and decorative. It is done. It is also required to be inexpensive.

Published Patent Publication Sho 56-123470 Published Patent Publication No. 57-47968 There is the above-mentioned patent document as related art.

Curtains used for indoor windows, etc. need functions such as blocking light and heat rays from outside, blocking heat from indoor warm air and cold air to outside, and cutting visibility from outside to inside, and Interior design and decoration are also required at low cost. Moreover, the thing excellent in the storing property at the time of curtain opening and closing is requested | required. Curtains that satisfy all these requirements were difficult to manufacture. For example, if an attempt is made to satisfy light and heat blockage, a curtain of a dense fabric or a fabric with an increased thickness will result, resulting in a problem of increased weight and cost. If the emphasis was placed on the decorativeness, it would have a high-grade drape, and would not necessarily have an excellent heat shielding effect, and the cost was lost.
The present invention provides a curtain that meets all the above requirements at low cost.

The present invention is realized by the following means.
"Means 1"
While chain-knitting a large number of warps and growing the knitting in the machine direction, weaving a weft between the chain-knitted warps, growing the knitting in the machine direction, , Weave over the desired number of chain knitted warps, knitting wefts with large heat shrinkage between adjacent chain knitted warps on the opposite side, and growing them in the longitudinal direction as well, By heat-treating the fabric adopting the double warp knitting method, the weft yarn having a large heat shrinkage rate is shrunk, and the fabric portion by the desired number of chain-knitted warp yarns and the weft yarns woven into them is expanded. An indoor curtain using a warp knitting method in which a fabric whose cross-sectional shape is made substantially D-shaped is arranged in a direction where the growth direction of the warp knitting is vertical.
"Means 2"
In the first means, the desired number of chain-knitted warp yarns for jumping is set to 3 to 6, and the indoor curtain by the warp knitting method is selected as the means for freely selecting the wefts having a large heat shrinkage rate. .
"Means 3"
In the means 1 to 2, the weft yarn having a large heat shrinkage rate and the normal weft yarn having a large filament count are simultaneously knitted or mixed, and then skipped by the number of 3 to 6 chain knitting warps and used as the weft yarn. Indoor curtains using the warp knitting method.
"Means 4"
In means 1 to 3, a water-soluble yarn is used as a weft for connecting 1 pitch between chain knitting warp yarns that do not knitting a weft yarn having a large thermal shrinkage in the transverse direction, and the connecting portion is removed by washing after knitting. Indoor curtains using warp knitting.
"Means 5"
An indoor curtain comprising a yarn having a heat shielding or light shielding function as a part of the yarn used in the means 1 to 4.
"Means 6"
In the curtain of means 1 to 5, when there is a lot of heat entering from the outside of the window, the retained air in the vertical cavity is heated by the intruding heat, and the convection circulation passage function of the warm airflow appears from the bottom to the top so An indoor curtain that gathers in the upper part and forms an air convection passage that efficiently absorbs and cools the air when the air conditioner is used, thereby enhancing the cooling effect when using the air conditioner.

1) Since it has a cavity for air retention, the curtain has a heat retaining effect and a heat shielding effect.
2) Since the hollow portion is arranged in a tube shape having a D-shaped cross section in the vertical direction and is connected by a flat cloth portion therebetween, it is folded at the flat portion, so that the curtain can be opened and closed smoothly and the storage property is good.
3) Since the hollow portions and flat portions arranged in a tube shape are alternately arranged in the vertical direction, the vertical stripe design is excellent in aesthetic appearance.
4) In addition to wefts having a high heat shrinkage rate, weft yarns having a high heat shrinkage rate and a normal heat shrinkage rate are skipped by the desired number of chain knitting warp yarns of 3 or more and used as weft yarns, so that a yarn having a high heat shrinkage rate is shrunk At this time, since the yarn having a high filament count does not shrink, the hollow portion is filled with cotton. Therefore, the D-shaped cross-sectional shape becomes more stable, and air retention is enhanced, so that the curtain has a heat retaining effect and a heat shielding effect.
5) If a yarn having a heat shielding or light shielding function is used for a part of the yarn, the heat shielding or light shielding function as a curtain is enhanced.
6) Water-soluble weft knitted on chain warp warp is easily removed by washing to form a string-like curtain with a D-shaped tube-like air retaining function, and can be easily passed through if used as a partition. .
7) When an air conditioner is used as a cooler when the outdoor temperature is higher than indoor, a cavity provided in the vertical direction becomes a convection passage for air to form a highly efficient cooling system that minimizes turbulence.

The figure which looked at a part of curtain which showed an example of the composition of the present invention from the perpendicular direction before heat treatment The figure which looked at a part of curtain which showed an example of the composition of the present invention from the perpendicular direction after heat treatment The figure seen from the front direction when FIG. 2 of this invention is used as a curtain Illustration of a cooling system used in combination with an air conditioner Weft and warp knitting illustration

This will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a part of the curtain of the present invention that is cut horizontally in a state where the curtain before heat treatment is suspended. b is composed of wefts having a large heat shrinkage rate. Further, f is a normal weft yarn having a high heat shrinkage rate. That is, two types of yarns having different materials and yarn sizes, b and r, are knitted or mixed and used as weft yarns.
c is a warp knitted chain, and d which is a normal weft 1 is knitted to form a fabric. In the figure, a weft b having a large heat shrinkage rate and a weft f having a normal heat shrinkage rate having a large filament count are knitted into the chain knitted warp portions on both sides of the three yarns. . In FIG. 1, three chain-knitted warp portions are skipped, but four to six may be used. e is the weft yarn 2 and may be the same weft yarn as d. However, if a water-soluble yarn is used for the weft yarn 2, this portion is melted by washing with water after the fabric is completed, and a portion to be described later is a string-like shape. A separate curtain becomes possible.
FIG. 2 shows an example of the configuration of the present invention, which is heat-treated after the means shown in FIG. 1, and is a cross-sectional view in which a part of the curtain is horizontally cut in a suspended state. The weft b having a large heat shrinkage rate is formed by jumping three chain-knitted warp portions and knitting the chain-knitted warp portions on both sides and then heat-treating to form a D-shaped cross-sectional shape. FIG. For this reason, when the weft b having a high thermal shrinkage rate is shrunk, the normal weft f having a large filament count is not shrunk, so that the cavity is filled with cotton. Therefore, the D-shaped cross-sectional shape as shown in FIG. 2 is formed more stably, and air retention is enhanced. a is a hollow portion having a D-shaped cross section, and when used as a curtain, a plurality of pieces are arranged in one curtain in a tube shape perpendicular to the vertical direction. Reference numerals b to f in FIG. 2 are those shown in FIG.
1 and 2 show three chain-knitted warp portions skipped, four to six may be used. The reason why it is practical to skip 3 to 6 yarns comes from the shrinkage rate of the yarn b having a large heat shrinkage. This is because, in order to swell into a D-shape suitable for window decoration, it is practical to fly 3 to 6 chain-knitted warps with commercially available yarns with large heat shrinkage.
1 and 2, e is knitted between adjacent chain-knitted warp portions c, but may be knitted between a plurality of chain-knitted warp portions c. Since FIG. 1 and FIG. 2 are based on the warp knitting method described later, weft yarns b, d, e, f and the like are knitted into a desired chain knitting warp, and the knitted fabric is grown in the vertical direction. Is.
FIG. 3 is a front view when FIG. 2 is used as a curtain. 3 will be described in comparison with FIG.
A portion of FIG. 2 is a hollow portion having a D-shaped cross section, and a plurality of portions are arranged on a single curtain in the form of a tube perpendicular to the vertical direction. 2 is normally flat in the case of fabrics connected as a curtain, and is shown as g in FIG. 3 because it is a view seen from the front of the curtain. The h part and the g part are alternately arranged.

If, for example, a titanium oxide-containing yarn having heat blocking effect or heat ray reflecting effect is used for the yarns c, d, e, etc., a curtain having a further heat shielding effect is obtained.
The effect of the present invention is that the normal yarn f having a large filament count does not contract into a large number of hollow portions a arranged in the vertical direction, so that the hollow portion is filled like cotton. For this reason, an air layer with a large heat shielding effect is formed by holding the air, so that the heat insulation effect is enhanced when the outdoor temperature is lower than the indoor temperature, or the heat shielding effect is enhanced when the outdoor temperature is higher than the indoor temperature. In addition, by using the above-described yarn having a heat shielding or light shielding function, an indoor curtain with a further enhanced effect can be realized.

As for the weft f having a high filament count and a normal heat shrinkage rate, a cotton-like effect can be obtained by using a yarn having a filament thickness of 1.2 T or less.
T is called decitex and is a unit of size when a gram of yarn is stretched to 10,000 m.

FIG. 4 is a diagram showing that a highly efficient cooling system can be realized at low cost by using the curtain of the present invention together with an indoor air conditioner. When the curtain of the present invention is used indoors for a window and there is a lot of intrusion heat from outside the window, such as in summer, the vertical cavity reserved air is heated by the intrusion heat, and the convection circulation path function of warm airflow from the bottom to the top appear. The warm air warmed up in the cavity efficiently gathers in the upper part of the room, and when the air conditioner is installed in the upper part of the room, it forms an air convection passage where the air conditioner efficiently absorbs and cools the air. Forms a cooling system with enhanced effectiveness. If there is no hollow vertical hole provided in the curtain of the present invention, the air located in the vicinity of the curtain becomes warm air, but it moves as a turbulent air flow in the room and requires cooling time, and the cooling efficiency is also reduced as compared with the present invention. It will be.

In the case of the curtain of the present invention as seen from the front in the indoor, the bulges appear alternately in the vertical direction, so a print of a picture pattern including vertical lines such as aurora, waterfall, rain, bamboo grove, cedar, etc. Since it matches well with the figure, it has excellent interior characteristics as well as heat insulation and heat shielding effects.

There are two types of fabric knitting: horizontal knitting and vertical knitting. The difference is shown in FIG.
The flat knitting in FIG. 5 is to grow a knitted fabric by continuing loops in the horizontal direction. On the other hand, warp knitting is a continuous loop in the vertical direction. In the present invention, warp loops by chain knitting are basically used, and wefts are knitted into them to grow knitting in the longitudinal direction. In the weft knitting, the loops are continuous in the transverse direction, so that longitudinal and transverse elongation occurs. For this reason, it is suitable for clothes but not for curtains.
On the other hand, warp knitting is less suitable for curtain fabric because it has less vertical and horizontal elongation.

The following patent documents of two references will be described as prior similar techniques.
Patent Document 1 Published Patent Publication No. 56-123470
Patent Document 2 Published Patent Publication No. 57-47968
Patent Document 1 is a knitting structure of a circular knitting made of a quilt, a triple prestar, an inlay, etc. whose knitting structure is illustrated in the attached drawings of the reference. This is a flat knitting method, and stretches vertically and horizontally. For this reason, flat knitting is a knitting method that is not used for curtains. On the other hand, the present invention is fundamentally different in that it is a warp knitting method in which wefts are continuous with chain warp yarns in the longitudinal direction to make a fabric. That is, a warp knitting method with little vertical and horizontal elongation is suitable for use in curtains and the like. Furthermore, the back area is knitted with a back yarn that softens and shrinks at 60 to 180 ° C., the back yarn is shrunk, and the surface yarn of the shrinkage portion is made to have a lifting effect. A manufacturing method is disclosed. However, there is no specific disclosure of the relationship between the warp and weft yarns of different yarns with different heat shrinkage and the knitting method. Its purpose is for chairs and seat covers, although it has the term interior. That is, there is no disclosure of the curtain that is the subject of the present invention.
Patent Document 2 discloses a method for producing a double-structured woven fabric in which a fabric is knitted and heat-treated with yarns having a hot water shrinkage ratio of 5% or more. There is no disclosure on the curtain. Therefore, the present invention is not derived from these two prior arts.

The curtain according to the present invention can realize heat insulation and heat insulation at low cost and is excellent in interior production, and its effect increases when used in combination with an indoor air conditioner. Is done.

a Cavity b Heat shrinkable weft c Chain knitting warp d Weft 1
e Weft 2
f Wefts with a high filament count g Part e seen from the front in FIG. 2 as a curtain h Part seen from the front in the a part in FIG. 2 as a curtain

Claims (6)

While chain-knitting a large number of warps and growing the knitting in the machine direction, weaving a weft between the chain-knitted warps, growing the knitting in the machine direction, , Weave over the desired number of chain knitted warps, knitting wefts with large heat shrinkage between adjacent chain knitted warps on the opposite side, and growing them in the longitudinal direction as well, By heat-treating the fabric adopting the double warp knitting method, the weft yarn having a large heat shrinkage rate is shrunk, and the fabric portion by the desired number of chain-knitted warp yarns and the weft yarns woven into them is expanded. An indoor curtain using a warp knitting method, characterized in that a fabric whose cross-sectional shape is made substantially D-shaped is arranged in a direction in which the warp knitting growth direction is vertical. The indoor use of the warp knitting method according to claim 1, wherein the desired number of chain-knitted warp yarns for jumping is 3 to 6, and the interval at which wefts having a large heat shrinkage rate are not knitted is freely selected. curtain. 3. The method according to claim 1, wherein the weft yarn having a large heat shrinkage rate and the weft yarn having a normal heat shrinkage rate having a large filament count are simultaneously knitted or mixed, and is skipped by the number of 3 to 6 chain knitting warps to be used as a weft yarn. Indoor curtains with a warp knitting system. 4. A water-soluble yarn is used as a weft for connecting between one pitch of chain-knitted warp yarns that do not knitting a weft yarn having a large heat shrinkage in the transverse direction according to claim 1, and the connecting portion is removed by washing after knitting. Indoor curtains using warp knitting. An indoor curtain, wherein a yarn having a heat shielding or light shielding function is used for a part of the yarn used in claim 1. In the curtain of Claims 1-5, when there is much intrusion heat from the outside of the window, the vertical cavity reserved air is heated by the intrusion heat, and the convection circulation passage function of the warm airflow appears from the bottom to the top so that the warm air is efficiently An indoor curtain characterized by gathering in the upper part of the room and forming an air convection passage that efficiently absorbs and cools the air when the air conditioner is used, thereby enhancing the cooling effect when using the air conditioner.

Images