JP2003116711A - Curtain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain capable of absorbing moisture/water condensed on a window or a part next to the window or water vapor in the air to keep the humidity in a room comfortable, and causing a moderate temperature rise to keep the interior of the room warm and comfortable. SOLUTION: This curtain at least partially uses a sheet-like material to which high moisture absorptive particles adhere. The curtain is characterized in that the maximum temperature rise in absorbing moisture and/or water is 3 deg.C or more, and preferably heat generation in absorbing moisture is kept for 30 minutes or more, and/or heat generation in absorbing water is kept for one minute or more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain, and more specifically, it absorbs moisture and water vapor condensed in windows and windows.
The present invention relates to a curtain that absorbs water, keeps the humidity in the room comfortable, and keeps the room warm and comfortable by an appropriate temperature rise.

[0002]

2. Description of the Related Art Usually, a curtain material made of a sheet-like material has a function of blocking light such as direct sunlight, a private function of keeping the room invisible from the outside, and a heat-retaining function.
It is well known for its function of blocking sound and its function as an interior. As a curtain having high heat insulation performance, Japanese Patent Application Laid-Open No. 7-184766 discloses a curtain made of a cloth material formed by using hollow fibers. Although the curtain using this hollow fiber exhibits a heat insulating function, it does not keep the temperature of the room comfortable by raising the heat generation temperature. Further, the concept of using a hygroscopic material for the curtain is disclosed in Japanese Patent Laid-Open No. 6-
It is described in Japanese Patent No. 287827. According to this publication, hygroscopicity is certainly obtained by forming a sheet-like material by including water-absorbent acrylic fiber or the like. However, the concept of raising the heat generation temperature and keeping the room temperature comfortable is not described. Further, Japanese Patent Laid-Open No. 2001-64876 discloses a heat-retaining cloth in which fine particles of water-absorbent resin are added to the cloth, and the temperature rise due to moisture absorption or water absorption is 0.5 ° C. or more. The curtain is mentioned as one. This heat-retaining cloth certainly absorbs water and absorbs moisture, and the temperature rises, but the temperature rise is at most 0.8 ° C or less, and the effect of keeping the room temperature comfortable when actually used as a curtain material is I can't expect. There is also a method to increase heat retention by applying a material that absorbs infrared rays from sunlight, such as zirconium carbide, to the fabric, but the curtain is often used by expanding it at night when there is no sunlight. It does not make much sense to keep the heat for the first time when it is irradiated with light. Furthermore, a method has been proposed in which materials with phase changes such as paraffins are microencapsulated and applied to fabrics, but this method does not have the concept of absorbing moisture to keep the room humidity comfortable, and increasing its temperature. It is necessary to attach a large amount of the phase change material in order to achieve a level that can be felt, and the texture of the sheet-like material becomes stiff, which is not preferable.

[0003]

SUMMARY OF THE INVENTION The present invention absorbs / absorbs moisture that has condensed on windows and windows and water vapor in the air to keep the humidity in the room comfortable, and also to raise the room temperature by an appropriate temperature rise. The aim is to provide a curtain that can keep the inside warm and comfortable.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION That is, the present invention has the following configuration. The first one is a curtain using a sheet-like material to which highly hygroscopic fine particles are attached, at least in part, and is characterized in that the maximum temperature rise during moisture absorption and / or water absorption is 3 ° C or more. curtain. The second is the curtain according to the first aspect of the present invention, in which heat generated when absorbing moisture is maintained for 30 minutes or more and heat generated when absorbing water is maintained for 1 minute or more. The third is the curtain according to the first or second invention, in which the maximum temperature rise during water absorption is 8 ° C. or higher. Fourthly, the first to the third embodiment in which polyester different shrinkage mixed fiber yarns are used for at least a part of the yarns forming the sheet
The curtain according to any one of the third invention. The fifth
Is a flame-retardant polyester yarn containing a phosphorus raw yarn in at least a part of the yarns constituting the sheet
The curtain according to any one of the fourth invention. The sixth
Is a curtain according to any one of the first to fifth inventions, wherein the sheet-shaped material is a lace knitted material.

In winter, the outside air temperature is low and the indoor temperature is high.
Therefore, the indoor temperature near the window is reduced, and water vapor in the indoor air is condensed. Although the curtains attached to the windows are useful for keeping the room warm, the curtain of the present invention further absorbs heat and heat to raise the room temperature and keep it comfortable. Also, during the rainy season, the humidity is high both outdoors and indoors, and the curtain absorbs moisture, which makes the room comfortable, and when the humidity is low on sunny days, it releases moisture,
It has a humidity control function.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The curtain of the present invention has high hygroscopic particles (hereinafter, also referred to as high hygroscopic / water absorbing exothermic particles).
It is necessary that at least a part of the sheet-like material to which is attached is used. The highly hygroscopic fine particles are not particularly limited in terms of chemical structure as long as they are particles that exhibit exothermicity when absorbing moisture or absorbing water. For example, inorganic particles such as hygroscopic silica, or various organic particles such as hygroscopic polyurethane, polyamide, polyester and polyacrylate particles can be applied, but particularly high hygroscopic / water absorbing exothermic organic particles. Preferably, for example, polystyrene-based, polyacrylonitrile-based, polyacrylic acid ester-based, polymethacrylic acid ester-based vinyl polymer, sulfonic acid group, carboxylic acid group, phosphoric acid group or a metal salt thereof. Crosslinked polymer fine particles having at least one kind of hydrophilic group and crosslinked with any of divinylbenzene, triallyl isocyanate or hydrazine are preferable.

The particle size of the highly hygroscopic fine particles is preferably as small as possible in terms of moisture absorption / water absorption heat generation rate / heat generation efficiency, uniform adhesion, texture and abrasion resistance, and an average particle diameter of less than 2 μm is more preferable.

The sheet-like material used for the curtain of the present invention is not particularly limited, and polyesters such as polyethylene terephthalate, polybutylene terephthalate and polytetramethylene terephthalate, polyamides, polyacrylonitriles, polyethylenes, polypropylenes, Knitted fabrics, woven fabrics, non-woven fabrics, film-like materials made of synthetic fibers such as polyurethane and polyphenylene sulfides, chemical fibers such as rayon and acetate, natural fibers such as cotton, hemp, silk, wool and feathers, or a mixture of these materials. Etc. can be used. However, a polyester-based sheet material is preferable from the viewpoint of light resistance and the like. Curtains are made of normal woven fabric, woven fabric with jacquard pattern, woven fabric with printed pattern, lace knitted fabric, woven / knitted fabric with a multilayer structure having light shielding properties, shower curtains used in the bathroom, etc. There are various types such as a film-like one, but the invention is not particularly limited, and highly hygroscopic fine particles can be added to obtain a temperature increasing effect.

As the sheet-like material used for the curtain, preferred examples will be described. It is preferable to use a so-called heterogeneous-shrink mixed yarn obtained by subjecting a plurality of polyester multi-filament groups having different heat-shrinking properties to a fluid entanglement treatment for at least a part of a woven or knitted fabric, because the drape property is improved. The multi-filament group constituting the low shrinkage component of the different shrinkage mixed fiber may be a heat stretchable yarn. A textile having a chinchilla effect can be obtained by weaving a woven fabric having a satin structure or the like with the polyester different shrinkage mixed yarn and performing wrinkle processing during relaxation in dyeing. If the alkali weight reduction treatment is carried out before dyeing, a curtain having satisfactory drape property can be obtained. On the other hand, a woven fabric having a satin design or a double-sided satin double weave design may be subjected to special processing as required to obtain a curtain having a high light-shielding property.

As another example, flame-retardant properties are imparted to the curtain by using a flame-retardant polyester yarn containing a phosphorus raw yarn as at least a part of the yarns constituting the woven or knitted material used for the curtain. You can also The flame-retardant polyester yarn contains a phosphorus compound represented by the following general formulas (1) and / or (2) and a phosphorus raw yarn in an amount of 500 to 5
It is preferably composed of a copolyester obtained by adding it so as to contain it in an amount of 10,000 ppm.

[0011]

[Chemical 1] (In the above formula, R₁Is a monovalent ester-forming functional group
R₂, R₃Are the same or different groups,
Halogen atom, hydrocarbon group having 1 to 10 carbon atoms, R ₁Yo
A is a divalent or trivalent organic residue. Well
N₁Is 1 or 2 and n₂, N₃Are 0-4 respectively
Represents the integer. Furthermore, R_Four, R₇Each has 1 carbon
~ 21 alkyl group, aryl group, monohydroxyal
Kill group or hydrogen atom, R_FiveIs an alky having 1 to 6 carbon atoms
Group or aryl group, R₆Is an al having 1 to 10 carbon atoms
Represents a xylene group. )

As another example of the sheet material, there is a lace knitted material. In the case of a lace curtain, it is usually used by being double-attached to a window with a curtain having a high private function so that the room cannot be seen from the outside, but the lace curtain is arranged near the window. Therefore, it is preferable that the lace curtain has a moisture absorption / water absorption heat generation temperature raising function. Of course, it is more preferable that both the curtain and the curtain having a high private function have a moisture absorption / water absorption heat generation function.

The method of applying highly hygroscopic / water-absorbing exothermic particles is as follows:
Fiber, a method of kneading directly into a film or a resin layer, knitting, woven fabric, non-woven fabric, other sheet-like materials such as films and resin molded products, and a method of adhering to the surface layer of a curtain sewing product via a binder resin, From the viewpoint of moisture absorption / water absorption heat generation rate / heat generation efficiency, the latter adhesion method via a binder resin is preferable.

As the binder resin, a usual impregnation method,
Examples of the resin include silicone-based, urethane-based, acrylic-based, polyester-based, polyamide-based, and polyethylene oxide-based resins that can be applied to the padding method, coating method, and spray method, and are not particularly limited, but hydrophilic, that is, hygroscopicity, water absorption. It has excellent properties and moisture permeability, does not impede the excellent hygroscopicity and water absorption of high moisture / water absorption exothermic particles, and has a binder function that can effectively adhere and fix the high moisture / water exothermic particles and the sheet-like material. Excellent type is desirable.
As a particularly preferable hydrophilic resin binder, as a hydrophilic segment, a polyalkylene oxide addition type, a polar hydrophilic group type such as a sulfonate or a carboxylate, a hydrophilic silicone resin having amide modification or the like introduced therein, a hydrophilic urethane Examples thereof include resins, hydrophilic polyamide resins, and hydrophilic polyethylene oxide resins, which have high hygroscopicity and moisture permeability of the resin themselves and do not impair water absorption. The moisture permeability of the resin as used herein means the moisture permeability in a non-porous film state. Even in the case of a resin having a high moisture permeability expressed in a microporous film, a binder resin having a low hygroscopicity and a low water absorptivity of the resin itself masks and lowers the excellent moisture absorption / heat generation characteristic of the high moisture / water absorption heat-generating fine particles. Also, these high moisture absorption /
Water-absorbing exothermic fine particles and hydrophilic resin binder system to improve durability, various crosslinking agents such as isocyanate type, methylol type, ethyleneimine type, polyfunctional aziridinyl type, metal salt type, etc. are used. You may use together in the range which does not deteriorate property.

The compounding ratio of the highly hygroscopic / water-absorbing exothermic particles and the hydrophilic resin in the present invention and the amount of these adhering greatly affect the hygroscopic / water-absorbing exothermicity. The compounding ratio of the highly hygroscopic / water-absorbing exothermic fine particles to the hydrophilic resin is slightly different depending on the hydrophilicity level of the hydrophilic resin, but it is usually desirable to use the compounding ratio of 1/1 to 19/1, preferably 10/1 to 19/1. More preferably, the compounding ratio of 15: 1 to 19/1,
In particular, the smaller the blending ratio of the hydrophilic resin, the better the moisture absorption / water absorption exothermicity can be exhibited. However, when the hydrophilic resin is extremely small or when the hydrophilic resin is not used together, the abrasion resistance of the highly hygroscopic / water-absorbing heat-generating fine particles adhered to the surface of the sheet-like material is lowered, and the particles easily fall off. On the contrary, when the mixing ratio of the hydrophilic resin is high, even if the hydrophilic resin is used, the moisture absorption / water absorption originally possessed by the highly hygroscopic / water-absorbing exothermic fine particles is often impaired.
The water absorption and heat generation rate and heat generation amount are extremely reduced. of course,
When the moisture absorption / water absorption of the hydrophilic resin is equal to or higher than the high moisture absorption / water absorption exothermic fine particles, the compounding ratio of the hydrophilic resin can be increased.

The moisture absorption / water absorption exothermicity of the curtain of the present invention is
It is based on the heat of adsorption reaction generated when the substance absorbs moisture or absorbs water, and depends on the hygroscopic ability and / or the water absorbing ability and the amount of adhesion of the highly hygroscopic / water-absorbing fine particles and the combined hydrophilic resin binder contained in the sheet. That is, the higher the hygroscopic / water-absorbing fine particles, and the finer the hydrophilic resin binder having a higher hygroscopic or water-absorbing level, the larger the heat production due to the adsorbed moisture, the faster the heat generation rate, and the longer the heat retention time. Of course, the moisture absorption / water absorption is preferably 25% or more for the moisture absorption (20 ° C., 65% RH) of the applied moisture absorption / water absorption exothermic fine particles in order to realize more effective moisture absorption / water absorption heat generation. It is preferably at least 40%. Further, the combined hydrophilic resin preferably has at least a moisture absorption rate (20 ° C., 65% RH) of 3 to 50% which does not impair the hygroscopicity / water absorptivity of the moisture absorption / water absorption exothermic fine particles as much as possible. The sheet-like material that has absorbed moisture at a saturated moisture absorption rate or higher and has completed heat generation is cooled by heat dissipation and drops to the initial temperature.
If the adsorbed water is removed by drying again, the originally excellent moisture absorption / water absorption exothermic property is re-expressed. That is, when the curtain is used indoors in the winter, if the outside air temperature is low and condensation occurs on the inside of the window, the curtain of the present invention absorbs heat / absorbs heat and contributes to keeping the room warm. Further, when the outside air temperature rises and the amount of dew condensation is small or absent, the curtain of the present invention releases moisture and the temperature is lowered, which contributes to the humidity control in the room.

According to the present invention, the curtain using at least a part of the sheet-like material adhered via an appropriate hydrophilic resin binder is optimized by optimizing the type and amount of highly hygroscopic / water-absorbing exothermic particles. The maximum temperature rise during moisture absorption and / or water absorption is 3 ° C or more, the maximum temperature rise during water absorption is 8 ° C or more, and the heat retention time during moisture absorption is 30 minutes or more, preferably 4 ° C or more, more preferably 5 ° C. Thus, the heat generation retention time during water absorption is maintained for 30 seconds or longer, more preferably 1 minute or longer. Moisture absorption / water absorption exothermicity is obtained.

The curtain of the present invention, in addition to these excellent high moisture absorption / water absorption exothermic properties, also has antibacterial deodorant property, antibacterial property, deodorant property, pH buffer property, antistatic property, SR antifouling property and acid resistance. It is also possible to express rain-induced multifunctionality.

[0019]

EXAMPLES The present invention will be described below with reference to specific examples, but the present invention is not limited thereto. In the following, those simply described as “part” and “%” mean the mass standard except for the boiling water shrinkage rate of the yarn. Incidentally, the measurement in this example,
The evaluation was performed by the following method.

<Absolute dry mass> After drying the sample at 110 ° C for 6 hours, the sample was placed in a desiccator containing silica gel and kept at 20 ° C for 6 hours.
After adjusting the temperature in a 5% RH environment, mass measurement was performed. <Hygroscopicity> The mass was measured after the temperature and humidity were adjusted for 24 hours in an environment of 20 ° C. and 65% RH, and calculated from the following formula. Moisture absorption rate (%) = {(moisture absorption mass-excess dry mass) / excess dry mass}
× 100

<Heat absorption by heat absorption> After drying at 110 ° C. for 6 hours,
5c put in desiccator containing silica gel and dried
20 after mounting a temperature sensor (for example, manufactured by Anritsu Keiki Co., Ltd .; 540K MD-5 type) on a measurement sample measuring m × 5 cm.
Temperature recorder (for example, manufactured by Anritsu Keiki Co., Ltd .; DATA COLLECTOR A)
M-7052 type).

<Water absorption and heat generation> 5 cm × 5 in the above-mentioned absolutely dry state
After attaching the temperature sensor to the measurement sample of cm,
In a 65% RH environment, 50% of the sample mass of ion-exchanged water was uniformly sprayed for 3 to 5 seconds, and the water absorption exothermicity was measured with a thermometer. The water absorption heat generation time and the water absorption heat generation retention time (minutes) above the maximum water absorption heat generation temperature and the sample temperature before water absorption were evaluated.

(Example 1) Polyethylene terephthalate multifilament group 42 [dtex] / 36 [fil]
(3-leaf cross section, bright, boiling water shrinkage 7%) and isophthalate component 10 mol% Copolymerized polyethylene terephthalate multifilament group 42 [dtex] / 24 [fil]
Three-leaf cross-section, semi-dal, boiling water shrinkage 55%) interlaced and mixed, polyester different shrinkage mixed yarn (84 [dt
ex] / 60 [fil]) was obtained. The polyester different shrinkage mixed yarn is subjected to a real twist of 400 [T / m] and used as a warp, and the weft is made of polyethylene terephthalate 84 [dtex] / 7.
2 [fil] round section semi-dual multifilament (boiling water shrinkage 7%), 1500 [T / m] actual twist, 85 ℃ ×
Using a 40-minute twisting moist heat set, a warp density of 225 [pieces / inch] and a weft density of 92 [pieces / inch] was used to weave into a five-ply satin design to obtain a textile raw fabric. Two wefts, S twist and Z twist, were alternately driven. The greige machine was subjected to wrinkling with a liquid-flow type relaxer, preset, subjected to 15% alkali weight reduction treatment, dyed with a disperse dye, dried, and then used as a base cloth for a highly hygroscopic / water-absorbing exothermic curtain. .

Next, highly hygroscopic / water-absorbing exothermic organic fine particles were produced by the following method. 350 parts of a water-soluble polymer of methacrylic acid / sodium p-styrenesulfonate = 70/30 and 35 parts of sodium sulfate were dissolved in 6500 parts of water and charged into a polymerization tank equipped with a paddle type stirrer. Next, 2,750 parts of methyl acrylate 2750 parts and divinylbenzene 330 parts were added.
-Azobis- (2,4-dimethylvaleronitrile) 15
Part was melted and charged into a polymerization tank, while stirring at 400 rpm,
Polymerization was carried out at 60 ° C. for 2 hours to obtain a copolymer having a polymerization rate of 88%. 100 parts of the polymer was dispersed in 900 parts of water, 110 parts of caustic soda was added thereto, and the reaction was carried out at 90 ° C. for 2.5 hours to hydrolyze the methyl ester part of methyl acrylate to obtain a carboxyl group. 4.6 meq / g
A crosslinked polymer having The obtained polymer was dispersed in water, washed, dehydrated, pulverized, classified or filtered to obtain highly hygroscopic / water-absorbing exothermic particles. The high moisture absorption / water absorption exothermic organic fine particles obtained have a moisture absorption rate of 5 at 20 ° C. and 65% RH.
The average particle size was 0% and the average particle size was 0.8 μm.

As a hydrophilic resin binder, 95 parts of an aqueous dispersion containing 20% of such highly hygroscopic / water-absorbing exothermic fine particles was used as a hydrophilic resin binder.
F-3500 (Kao's hydrophilic silicone binder;
Solid content 40%) 4 parts and Aquaprene WS105 (Meissei Chemical Industry hydrophilic urethane binder; solid content 4)
(0%) Immersed in 1 part of processing padding liquid and squeezed with a mangle so that the processing liquid wet pick-up rate is 100%, dried at 120 ° C, and set at 180 ° C for 1 minute to dry heat. A hygroscopic / water absorbing exothermic fabric was obtained.

The obtained woven fabric was sewn to obtain a curtain. The curtain was drapeable, soft and had a pleasing chinchilla appearance. Table 1 shows the moisture absorption / water absorption exothermic properties of the curtain. As compared with the unprocessed product, it was possible to obtain the moisture absorption heat generation / water absorption heat generation excellent in heat generation rate, heat generation temperature, and heat generation retention time.

(Example 2) The same base cloth as that of Example 1 was used. The highly hygroscopic / water-absorbing exothermic organic fine particles used in Example 2 were produced by the following method. Acrylonitrile (450 parts), methyl acrylate (40 parts), p-styrene sulfonate (16 parts) and water (1180 parts) were charged into an autoclave, and di-tert-butyl peroxide was added as a polymerization initiator in an amount of 0.5% based on the total amount of the monomers. After the addition, the mixture was sealed and then polymerized for 20 minutes at 150 ° C. under stirring, cooled to about 90 ° C. with stirring, and an aqueous dispersion of raw material fine particles having an average particle diameter of 1.4 μm (measured by a light scattering photometer). Got Hydrazine was added to this aqueous dispersion so that the concentration in the bath was 35%, crosslinking treatment was performed at 102 ° C for 2 hours, caustic soda was added so that the concentration in the bath was 10%, and water was added at 102 ° C for 5 hours. PH after decomposing
After adjustment, classification or filtration, a highly hygroscopic / water-absorbing exothermic organic fine particle dispersion was obtained. The resulting highly hygroscopic / water-absorbing exothermic organic fine particles had a hygroscopicity of 51% at 20 ° C. and 65% RH, and an average particle diameter of 0.5 μm.

As a hydrophilic resin binder, 95 parts of an aqueous dispersion containing 20% of such highly hygroscopic / water-absorbing exothermic fine particles was used as a hydrophilic resin binder.
The base cloth is dipped in a processing padding solution containing 5 parts of F-3500 (alkylene glycol modified hydrophilic silicone binder manufactured by Kao Corporation; solid content 40%), and squeezed with a mangle so that the processing solution wet pickup rate is 120%. After
After drying at 120 ° C., dry heat setting was performed at 170 ° C. for 1 minute to obtain a highly hygroscopic / water absorbing exothermic fabric. A curtain was sewn with the resulting fabric. Like Example 1, it was rich in drape, soft, and had a favorable chinchilla appearance. Moisture absorption /
Table 1 shows the characteristics of heat absorption and water absorption. As compared with the unprocessed product, excellent heat generation rate, heat generation temperature / heat retention time, and moisture absorption / water absorption heat generation were obtained.

Example 3 After melt-spinning a phosphorus-containing copolyester obtained by copolymerizing terephthalic acid as a carboxylic acid component, ethylene glycol as a glycol component, and a phosphorus-containing compound to a phosphorus atom content of 6000 ppm, It was stretched. A multifilament group (boiling water shrinkage rate 7%) that was heat-set during drawing and a multifilament group that was not heat-set (boiling water shrinkage rate 55%) were obtained. Both have a circular cross section of 42 [dtex] / 24 [fil], and both are interlaced and mixed to obtain 84 [dtex] / 48 [f].
il] flame-retardant polyester different shrinkage mixed yarn was obtained. The flame-retardant polyester different-shrink mixed yarn was applied to the warp by applying a true twist of 400 [T / m], and the weft was 84 [dtex] / 24 [fil] obtained from the same phosphorus-containing flame-retardant polyester. Round cross-section polyester multifilament (shrinkage rate 7
%) With a true twist of 1500 [T / m], 70 [℃] x 30
[Minute] twisted moist heat set was used. Weaving was carried out in the same manner as in Example 1 to obtain a textile fabric, and a dyed fabric used as a base fabric for a highly hygroscopic / water absorbing exothermic curtain was obtained in substantially the same manner as in Example 1 except that the alkali weight reduction processing was not performed.

Highly hygroscopic / water-absorbing exothermic organic fine particles were applied to the base fabric in the same manner as in Example 1 to obtain a highly hygroscopic / water-absorbing exothermic fabric, and a curtain was sewn. The obtained curtain had a desirable chinchilla appearance and was flame retardant. Table 1 shows the characteristics of heat absorption by moisture absorption / water absorption. As compared with the unprocessed product, excellent heat generation rate, heat generation temperature / heat retention time, and moisture absorption / water absorption heat generation were obtained.

(Example 4) Phosphorus-containing flame-retardant polyester 84 [dtex] / 24 [fil] used for the weft in Example 3
A lace knitted fabric was obtained by using the polyester multifilament having a circular cross section (7% in boiling water shrinkage). After relaxing and dispersion dyeing (white) by a conventional method, it was dried to obtain a base cloth for a highly hygroscopic / water-absorbing exothermic curtain.

Highly moisture-absorbing / water-absorbing exothermic organic fine particles were applied to the base fabric in the same manner as in Example 1 to obtain a highly moisture-absorbing / water-absorbing exothermic lace knit, and a curtain was sewn. The obtained curtain had flame retardancy. Table 1 shows the characteristics of heat absorption by moisture absorption / water absorption. Heat generation rate, heat generation temperature /
Excellent heat absorption / moisture absorption / water absorption heat generation was obtained.

Comparative Example 1 The dyed fabric used as the base fabric in Example 1 was sewn as it was to obtain a curtain. Compared with Examples 1 and 2, no moisture absorption / water absorption exothermic effect was observed.

Comparative Example 2 The dyed fabric used as the base fabric in Example 3 was sewn as it was to obtain a curtain. Compared to Example 3, no moisture absorption / water absorption exothermic effect was observed.

Comparative Example 3 The white dyed lace knitted fabric used as the base fabric in Example 4 was sewn as it was to obtain a curtain. Compared to Example 4, no moisture absorption / water absorption exothermic effect was observed.

Comparative Example 4 The dyed woven fabric used as the base fabric in Example 1 was also used as the base fabric, and 95 parts of an aqueous dispersion containing 20% of highly hygroscopic / water-absorbing exothermic fine particles was added to an amino-modified silicone resin binder. (Solid content 40%) Immerse the base cloth in 5 parts of the processing liquid, squeeze it with a mangle so that the processing liquid wet pickup rate is 100%, dry it at 120 ° C, and dry heat at 180 ° C for 1 minute. By setting, a woven fabric with high moisture absorption / water absorption exothermic particles was obtained. Curtains were sewn on the obtained fabric. Table 1 shows the characteristics of heat absorption by moisture absorption / water absorption. Example 1
It was inferior in heat absorption by moisture absorption / heat generation by water absorption as compared with.

Comparative Example 5 The dyed woven fabric used as the base fabric in Example 1 was also used as the base fabric, and 60 parts of an aqueous dispersion containing 20% of highly hygroscopic / water-absorbing exothermic fine particles was used as a self-crosslinking acrylic resin. (Solid content 30%, Water vapor transmission rate 60 g / m 2 · hr) 3
After adding 8 parts of the processing liquid and 2 parts of the inorganic metal catalyst so that the processing liquid wet pickup rate is 100%, 1
After drying at 20 ° C., dry heat setting was performed at 180 ° C. for 1 minute to obtain a highly moisture-absorbing / water-absorbing exothermic fine particle-adhered woven fabric. A curtain was sewn with the resulting fabric. Table 1 shows the characteristics of heat absorption by moisture absorption / water absorption. Due to the masking effect of the resin binder, the exothermic heat of moisture absorption / exothermic heat of water absorption were inferior to those of the examples.

(Comparative Example 6) TF-3500 (alkylene glycol-modified hydrophilic silicone binder manufactured by Kao Corporation) was used as a hydrophilic resin binder in 50 parts of an aqueous dispersion containing 20% of highly hygroscopic / water-absorbing exothermic fine particles in Example 2. A curtain was obtained in the same manner as in Example 2 except that the processing padding liquid added with 50 parts of solid content 40%) was used. The moisture absorption / water absorption exothermic properties of the obtained curtain are shown in Table 1. As compared with Example 2, the exothermicity of moisture absorption / exothermicity of water absorption was inferior.

[0039]

[Table 1]

[0040]

According to the present invention, the highly hygroscopic exothermic particles are attached to a knitted fabric, a woven fabric, a non-woven fabric, a film-shaped sheet or a resin molded product, or a curtain sewn product through a small amount of a hydrophilic resin. A curtain that can keep the room warm and comfortable is obtained by absorbing moisture that has condensed on the window in winter and water vapor in the air to generate heat quickly and stably. In addition, it is a novel curtain that also has a moisture-releasing property and thus has the function of controlling humidity inside the room during the rainy season.

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Claims (6)

[Claims] 1. A curtain using a sheet-like material to which highly hygroscopic fine particles are attached, at least in part, wherein the maximum temperature rise during moisture absorption and / or water absorption is 3 ° C. or more. curtain. 2. The curtain according to claim 1, wherein the heat generated when absorbing moisture is maintained for 30 minutes or more, and / or the heat generated when absorbing water is maintained for 1 minute or more. 3. The curtain according to claim 1, wherein the maximum temperature rise during water absorption is 8 ° C. or higher. 4. The curtain according to any one of claims 1 to 3, wherein polyester different shrinkage mixed yarn is used for at least a part of the yarns constituting the sheet-like material. 5. The curtain according to any one of claims 1 to 4, wherein a flame-retardant polyester yarn containing a phosphorus raw yarn is used for at least a part of the yarn constituting the sheet-like material. 6. The sheet-like material is a lace knitted material.
The curtain according to any one of item 5.