KR20170082766A - Bedclothes cover - Google Patents

Abstract

The present invention relates to the manufacture of an acupuncture cover for controlling penetration of house dust mites and viruses as well as a thermal effect by regulating the air permeability of bedding. More specifically, the bed cover is a laminate comprising an outer layer, an air-permeable film layer, an air-permeable polyurethane adhesive layer and a non-woven layer sequentially laminated. The thermal insulation layer is any one selected from cotton, cotton, feather, , An air permeable film layer as an inner layer, an air permeable polyurethane adhesive layer and a nonwoven fabric layer are sequentially laminated.

Description

{BEDCLOTHES COVER}

The present invention relates to the manufacture of an acupuncture cover for controlling penetration of house dust mites and viruses, as well as a thermal effect by controlling the air permeability of the acupuncture cover, comprising a breathable film layer, an air permeable polyurethane adhesive layer and a non- The present invention relates to an acupuncture cover,

In the indoor space where people live, there are various pollutants causing various diseases. There are house dust mites and viruses that live in germs and molds, blanket or sofa, carpet, bed mattress, etc. that can occur in wet areas. This is a cause of various diseases such as allergies, asthma, dermatitis, atopy and rhinitis, which threatens the health of modern people living in indoor space. In particular, bedding is used when a person takes a sleep, and it keeps a good environment for house dust mite, various bacteria, fungus and the like because of the sweat and waste which are secreted from the human body in contact with human skin for a long time. In such an environment, the pollutants cause seizures, dermatitis, atopic dermatitis, atopic dermatitis, and rhinitis through feces and carcass while eating dandruff and keratin which are separated from the human body.

Generally, bedding such as a futon, a sofa, a carpet, and a bed mattress is mostly made of ordinary cotton cloth or chemical cotton, and a cover is usually manufactured. To avoid the environment where house dust mites live, buy expensive bedding made with natural latex or buy a special cover that can not penetrate house mite ticks separately at a high cost. It is troublesome and troublesome for bedding, pillow or mattress Like a wrapping cloth. Even in the case of a natural latex fast-paced bedding, since the environment inhabited by the house dust mite does not change in the cover touching the skin, the above problem is not improved.

In order to solve the above-mentioned problems, it is an object of the present invention to provide an absorbent article which can easily and easily produce an acupuncture cover including a laminate having air permeability and can prevent invasion of house dust mite viruses and viruses in advance to maintain a clean and hygienic sleeping space And a cover for an acupuncture which can be used for a bed.

In order to accomplish the above object, the present invention relates to an acupuncture cover including a laminate having air permeability.

Specifically, the present invention is a cover for an acupuncture including an outer layer, a heat insulating layer and an inner layer, wherein the outer layer is a laminate comprising a breathable film layer, a breathable polyurethane adhesive layer and a nonwoven fabric layer successively laminated, Wherein the inner layer is a laminate comprising an air-permeable film layer, an air-permeable polyurethane adhesive layer and a non-woven fabric layer sequentially laminated, wherein the cover for the bedding is formed by sewing an outer layer, .

Wherein the air permeable film layer is an air permeable film formed by mixing inorganic particles with a polyolefin resin and stretching the air permeable polyurethane adhesive layer, wherein the air permeable polyurethane adhesive layer comprises an adhesive layer coated with a breathable polyurethane adhesive made of a polyol containing polyethylene glycol, polypropylene glycol, And the nonwoven fabric layer may be formed of a spunbonded nonwoven fabric or a spunlaced nonwoven fabric made of polyethylene, polypropylene, polyester or nylon.

The laminate may be manufactured by thermocompression bonding the air-permeable film layer, the breathable polyurethane adhesive layer, and the nonwoven fabric layer.

The laminate may have a moisture permeability of 2,000 to 10,000 g / m < 2 > .24hrs.

The bedding provides any bedding cover selected from mattresses, pillows, comforters, blankets.

The present invention can be easily and easily manufactured by sewing the outer layer, the insulating layer and the inner layer. In addition, the bed cover has advantages such as house dust mite, laminate having dense structure that virus can not infiltrate, and can prevent invasion of house dust mites and viruses, thereby maintaining a clean and hygienic sleeping space.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows an embodiment comprising an outer layer, a thermal insulation layer and an inner layer of the present invention.
Figure 2 shows another embodiment comprising an outer layer, a warming layer and an inner layer of the present invention.
3 is a structural view of a cover for a mattress to which an embodiment including an outer layer, a warming layer and an inner layer of the present invention is applied.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms, and the following drawings may be exaggerated in order to clarify the spirit of the present invention. Hereinafter, the technical and scientific terms used herein will be understood by those skilled in the art without departing from the scope of the present invention. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted.

Hereinafter, the present invention will be described in detail with reference to the drawings, but the present invention is not limited thereto.

Fig. 1 shows an embodiment of the present invention including an outer layer, a warming layer and an inner layer, Fig. 2 shows another embodiment including an outer layer, a warming layer and an inner layer of the present invention, A heat insulating layer, and an inner layer, according to an embodiment of the present invention.

As shown in the drawings, one embodiment of the present invention is an acupuncture cover including an outer layer, a heat insulating layer, and an inner layer.

1, the outer layer is a laminate comprising a breathable film layer, an air-permeable polyurethane adhesive layer, and a nonwoven fabric layer laminated in that order, and the insulating layer may be any one selected from cotton, cotton, feather, Wherein the inner layer is a laminate comprising an air-permeable film layer, an air-permeable polyurethane adhesive layer and a non-woven fabric layer laminated in this order, and the bed cover provides an acupuncture cover which is formed by sewing an outer layer, a thermal insulation layer and an inner layer .

The outer layer and inner layer of the present invention may have a composition in which the compositions of the air-permeable film layer, the breathable polyurethane adhesive layer, and the nonwoven fabric layer are the same or different from each other.

Another embodiment of the present invention is a laminate in which the air-permeable film layer, the breathable polyurethane adhesive layer and the non-woven layer are sequentially laminated on one surface of the air-permeable film layer, as shown in Fig. 2, do.

Hereinafter, each configuration of the present invention will be described in detail.

The air-permeable film layer of the present invention may be an air-permeable film obtained by mixing and stretching inorganic particles to a polyolefin resin.

The polyolefin resin of the present invention is a homopolymer or a copolymer mainly composed of ethylene, a polypropylene homopolymer or a copolymer mainly composed of propylene, and a polybutene containing a low density polyolefin, a linear low density polyethylene, a medium density polyethylene and a high density polyethylene It is preferred to use at least one compound selected from the group consisting of. Although the polyolefin resin is not limited as long as it has a molecular weight enough to form a film, in the present invention, it is preferable to use a polyolefin resin having a melt index (MI) of 1 to 10 g / 10 min measured at 190 占 폚 under a load of 2.16 kg For example.

The inorganic particles to be used in the breathable film of the present invention are not particularly limited, but examples thereof include calcium carbonate, talc, clay, kaolin, silica, diatomaceous earth, magnesium carbonate, calcium chloride, calcium sulfate, aluminum hydroxide, zinc oxide, magnesium hydroxide , Titanium oxide, alumina, mica, asbestos powder, zeolite, and silicate white clay, but is not limited thereto. It is preferable to use 40 to 55 parts by weight of the inorganic particles per 100 parts by weight of the polyolefin resin, and it is preferable since the strength of the film is not lowered and the air permeability can be easily controlled during production of the air-permeable film.

A method of producing the air permeable film of the present invention by stretching will be described in more detail. A method for producing the air permeable film according to the present invention comprises melt kneading a mixture obtained by mixing inorganic particles into a polyolefin resin, It is possible to mold the disc sheet in accordance with the molding method, and to carry out inflation molding by a circular die, extrusion molding by a T-die, and the like. Next, it is preferable that uniaxial stretching at 1.2 to 6 times, preferably 1.5 to 5 times, of the molded disc sheet based on the extrusion method is performed because a sufficient film having sufficient air permeability is obtained and a safe film free from breakage during stretching can be obtained. By this stretching process, pores are formed around the film due to the inorganic particles contained in the film, thereby imparting breathability.

The breathable film layer of the present invention preferably has a basis weight of 10 to 90 gsm in order to maintain moisture permeability, waterproof ability and air permeability without being torn easily, and the breathable film layer has a moisture permeability of 2,000 to 10,000 g / 24 hours is suitable for the purpose of the present invention.

 The breathable polyurethane adhesive layer of the present invention may be formed by applying an adhesive to one surface of the breathable film layer or the nonwoven fabric layer. The breathable polyurethane adhesive includes a polyol, isocyanate, including polyethylene glycol, polypropylene glycol, or a mixture thereof. When the polyol component is used, water may be absorbed into the -OH groups at both ends and diffused to have air permeability. The polyol may have a number average molecular weight of about 100 to 500,000, but is not particularly limited thereto.

When the breathable polyurethane adhesive is used, since the air permeability is imparted to the place where the adhesive is adhered, it can be coated on the front surface and laminated.

Examples of the isocyanate include, but are not limited to, methylene diphenyl diisocyanate, 1,6-hexamethylene diisocyanate, isophorone diisocyanate, meta-xylene diisocyanate, and meta-tetramethyl xylene diisocyanate.

The breathable polyurethane adhesive of the present invention may use a breathable polyurethane adhesive further comprising a chain extender, a catalyst and an organic solvent.

Examples of the chain extender of the present invention include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1,3-propanediol, 1,2-butanediol, Propanediol, 4-butanediol, 2,3-butanediol, 3-methyl-1,5-pentanediol, neopentyl glycol, 2- 2-ethyl-1,3-propanediol, 1,5-pentanediol, 1,6-hexanediol, 2-methyl-2,4-pentanediol, 1,3-pentanediol, 2 -Ethyl-1,3-hexanediol, 2,5-dimethyl-2,5-hexanediol, 2-butyl-2-hexyl-1,3-propanediol, 1,8- , Aliphatic glycols such as 8-octanediol and 1,9-nonanediol, alicyclic glycols such as bishydroxymethylcyclohexane, glycols having aromatic rings such as xylylene glycol and bishydroxyethoxybenzene, and the like. However, the present invention is not limited thereto. The chain extender is preferably used in an amount of 0.01 to 5 parts by weight based on the total solid content, but is not limited thereto.

The organic solvent is selected from the group consisting of ethyl acetate, acetone, toluene, xylene, cyclohexanone, N, N-dimethylacetamide, N, N-dimethylformamide, Alcohols, dichloromethane and the like, but is not limited thereto.

In the production of the breathable polyurethane adhesive of the present invention, the catalyst used in the polyurethane industry can be used. Examples thereof include tin salts of carboxylic acids such as tin octanoate, tin oleate, tin acetate and tin salts of lauric acid, dialkyltin dicarboxylates such as dibutyltin dilaurate and dibutyltin diacetate, Tertiary amines, tin mercaptide, and the like, but are not particularly limited thereto.

The breathable polyurethane adhesive coating method can be coated by roll coating, dip coating, flow coating, gravure coating, slot die coating and the like.

The breathable polyurethane adhesive of the present invention preferably has a viscosity of 200 to 3,000 cps / 25 ° C and a basis weight of 1 to 10 gsm in order to improve antiviral, moisture-permeability, breathability and workability for achieving the object of the present invention , But the present invention is not limited thereto.

The nonwoven fabric layer of the present invention may be any nonwoven fabric selected from spunbonded or spunlaced nonwoven fabrics. The nonwoven fabric refers to a nonwoven fabric manufactured by a conventional spunbond method or a spunlaced method, But it is preferable to use a resin selected from the group consisting of polyester, nylon, polyethylene and polypropylene, more preferably a spunbond using a polypropylene resin, and it is preferable to use a spun bond method or a spun lace method A nonwoven fabric can be used. For example, a spunbonded nonwoven fabric having a basis weight of 10 to 300 gsm can be used. By using such a nonwoven fabric, the present invention can also achieve an excellent effect of breathability. More specifically, the nonwoven fabric layer may be a spunbonded nonwoven fabric or a spunlaced nonwoven fabric made of a material such as polyethylene, polypropylene, polyester, or nylon.

The present invention can improve the strength and resistance to water at the same time by laminating the nonwoven fabric layer and the breathable film layer with an air permeable polyurethane adhesive, and it is possible to improve the adhesive strength while maintaining air permeability during lamination, It has been learned that there is an additional effect that can be avoided, so that it can be used for a long time.

The laminate of the present invention thermally compresses the air-permeable film layer, the breathable polyurethane adhesive layer and the nonwoven fabric layer. At this time, the temperature at the time of thermocompression bonding is set to 80 to 150 ° C so that the air-permeable film is not completely melted, so that air permeability is maintained even after bonding so that moisture can pass through.

The laminate produced according to the present invention preferably has a moisture permeability of 2,000 to 10,000 g / m < 2 > .24 hrs.

According to the present invention, the air-permeable film layer, the breathable polyurethane adhesive layer, and the nonwoven fabric layer are laminated by the above-described method so that moisture or water droplets are not permeated but air permeable The cover for an acupuncture can be manufactured.

Then, as shown in FIG. 1, the laminate and the insulating layer are sewn together to sequentially form an outer cover, a heat preservation layer and an inner layer to form a cover for bedding.

The heat insulating layer of the present invention may use any filler selected from cotton, cotton, feather, and wool. It is preferable to arrange it between the outer layer and the inner layer and sew it, but it is not limited thereto.

The acupuncture cover of the present invention may include any one opening selected from a method of padding a rubber band, a zipper, a velcro and a laminate on one side or both sides thereof.

 As shown in FIG. 3, the present invention can be applied to any one of the bedding covers selected from a mattress, a pillow, a comforter, and a blanket.

Hereinafter, the present invention will be described in more detail based on examples and comparative examples. It should be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In addition, the unit of the additives not specifically described in the specification may be% by weight.

The following characteristics were measured by the following methods.

1) Water vapor permeability

KS K0594, and calcium chloride method. Three specimens of circular specimens were taken at a temperature of 40 ± 2 ℃ and a humidity of 90 ℃. The test specimens were 1/10 T in width and more than 1 ㎝ in width and 50 ㎝ in both ends and 10 ㎝ in width. The test piece was taken out after 1 hour by putting it in a constant temperature and humidity condition of ± 5% RH, and the weight A1 (mg) was measured. After 1 hour, the test piece was taken out and the weight A2 (mg) was measured.

2) Peel strength

Cut the specimen in MD direction (15 cm) and CD direction spec. Cut one end of the specimen to the grip of the upper end of the tensile tester and measure the peel strength by using a tensile tester.

3) Antiviral testing

As a method for testing the resistance of the protective clothing to external pathogens, we proceeded with ISO 16604: 2004 Procedure C, a bacteriophage resistance test method, and the experimental methods for each class are as follows. The antiviral grade was classified into the lowest class 1 to the highest class 6 class according to the virus permeability as shown in Table 1 below.

Rating class 1 Maintained at 0 kPa for 5 minutes class 2 Subsequently, the pressure was slowly raised at a rate of 3.5 kPa / s and maintained at 1.75 kPa for 5 minutes class 3 Subsequently, the pressure was slowly raised at a rate of 3.5 kPa / s and maintained at 3.50 kPa for 5 minutes class 4 Subsequently, the pressure was slowly raised at a rate of 3.5 kPa / s and maintained at 7.00 kPa for 5 minutes class 5 Subsequently, the pressure was slowly raised at a rate of 3.5 kPa / s and maintained at 14.00 kPa for 5 minutes class 6 Subsequently, the pressure was slowly raised at a rate of 3.5 kPa / s and maintained at 20.00 kPa for 5 minutes

4) Anti-tick test

The cover of the bedding made in the house was provided for 30 days, and the number of mites inside the bedding was checked every 10 days.

[Production Example 1]

A compound resin having a calcium carbonate content of 45 parts by weight based on 100 parts by weight of low density polyethylene (Hanwha Chemical, HANWHA LDPE 955, MI: 7.5) was extruded through a T-die in a film extruder and stretched at a draw ratio of 2.5: gsm < / RTI > breathable film. The moisture permeability of this breathable film was measured to be 6,000 g / m 2 24 hrs.

Then, a polyol component obtained by mixing polyethylene glycol having a number average molecular weight of 1,500 g / mol and 1,4-butanediol in a weight ratio of 90:10 and methylene diphenyl diisocyanate were mixed in an NCO: OH ratio of 0.8: 1. At this time, the mixture was dissolved in ethyl acetate at a solid content of 60% by weight in the presence of 0.02 part by weight of dibutyltin dilaurate used as a catalyst. The mixture was stirred at 80 ° C for 1 hour and then cooled to prepare a breathable polyurethane adhesive. The viscosity of the manufactured breathable polyurethane adhesive was 2,000 cps / 25 占 폚.

The breathable polyurethane adhesive was roll-coated on the entire surface of the breathable film, followed by laminating a polypropylene spunbond nonwoven fabric having a basis weight of 50 gsm, followed by thermocompression bonding and further lapping, followed by drying at a temperature of 60 캜 to produce a laminate having breathability Respectively. As a result, the laminate having air permeability had a peel strength of 600 g / inch using a tensile tester and a water vapor permeability of 5,000 g / m 2 24 hrs according to KS K594 and calcium chloride method.

[Example 1] Manufacture of cover for bedding

The air-permeable laminate prepared in Preparation Example 1 was cut to a size of 210 * 230 cm, and four side edges were sewn with a sewing machine as a double layer, and one side was treated with some unbonded material to form window holes. The cotton having a thickness of 2 to 9 cm was fitted to the size of the laminate having air permeability, and then turned upside down together with the breathable laminate outer material sewn and cut to fill the space between the outer layer and the inner layer. After the filling of the cotton, the uncoated side of the fabric was sewn to produce a cover for the bedding. Table 2 shows the characteristics of the bed cover.

[Example 2] Production of cover for bedding

The air-permeable laminate prepared in Preparation Example 1 was cut to a size of 210 * 230 cm, and four side edges were sewn with a sewing machine as if the outer and inner layers were laminated with two layers of laminate respectively, It was treated with some freezing agent as much as possible. A cotton having a thickness of 2 to 9 cm was set to the size of the laminate having air permeability, and then turned upside down together with the air permeable laminate outer cloth sewn and cut to fill the space between the outer layer and the inner layer. After the filling of the cotton, the uncoated side of the fabric was sewn to produce a cover for the bedding. Table 2 shows the characteristics of the bed cover.

[Example 3] Manufacture of a cover for a mattress

The air-permeable laminate prepared in Preparation Example 1 was cut to a size of 160 * 210 cm, sewn in the same manner as in Example 1, and a rubber band was placed in the lower and upper portions of both sides. The properties of the cover for the mattress are shown in Table 2.

[Comparative Example 1]

The cover for bedding was manufactured in the same manner as in Example 1 except that the laminate having air permeability was used as a general cotton fabric, and the characteristics of the bedding cover were shown in Table 2.

[Comparative Example 2]

The cover for bedding was manufactured in the same manner as in Example 1 with a waterproof fabric not having a breathable laminate, and the characteristics of the bedding cover thus prepared are shown in Table 2.

Antivirus Mite 10 days past 20 days past 30 days past Comparative Example 1 Class 1 Average 30 grains / ㎡ Average 70 grains / ㎡ Average 100 grains / ㎡ Comparative Example 2 Class 4 Average 0 grains / ㎡ Average 10 dogs / ㎡ Average 40 grains / ㎡ Example 1 Class 6 Average 0 grains / ㎡ Average 0 grains / ㎡ Average 0 grains / ㎡ Example 2 Class 6 Average 0 grains / ㎡ Average 0 grains / ㎡ Average 0 grains / ㎡ Example 3 Class 6 Average 0 grains / ㎡ Average 0 grains / ㎡ Average 0 grains / ㎡

As shown in Table 2, the antiviral test results showed that there was no blocking effect against viruses in the case of Comparative Example 1 (Class 1), whereas in Comparative Example 2, the viruses were blocked against the virus for a certain period of time (Class 4) It was confirmed that Examples 1 to 3 prepared with the breathable laminate produced in the present invention had the highest level of virus blocking effect. (Class 6)

As shown in Table 2, in the test results of the anti-mite test, the mites tended to increase rapidly in the case of Comparative Examples 1 and 2 because of easy penetration into pores. On the other hand, in the case of Examples 1 to 3 in which a laminate having air permeability was used, it was confirmed that penetration of a tick was blocked because a laminate having a dense structure in which a tick could not penetrate was used.

 Also, it was confirmed that the same effects were obtained when the characteristics of the antiviral and anti-mite groups were checked after the modification as in Examples 2 to 3.

It is to be understood that the present invention is not limited to the above-described embodiments, and various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains .

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

10: breathable film 11: breathable polyurethane adhesive
12: Non-woven fabric 13: Insulating filler
14: rubber band 15: section of the mattress cover fabric

Claims (5)

An acupuncture cover comprising an outer layer, a thermostat layer and an inner layer,
Wherein the outer layer is a laminate comprising an air-permeable film layer, an air-permeable polyurethane adhesive layer and a nonwoven fabric layer sequentially laminated,
Wherein the insulating layer is any filler selected from cotton, cotton, feather, and fleece,
Wherein the inner layer is a laminate comprising an air-permeable film layer, an air-permeable polyurethane adhesive layer and a nonwoven fabric layer sequentially laminated,
Wherein the cover for bedding is a cover for bedding combined by sewing an outer layer, a heat insulating layer and an inner layer. The method according to claim 1,
Wherein the air-permeable film layer is a breathable film obtained by mixing inorganic particles with a polyolefin resin and stretching the mixture,
Wherein the breathable polyurethane adhesive layer is an adhesive layer coated with a breathable polyurethane adhesive made of a polyol containing polyethylene glycol, polypropylene glycol or a mixed component thereof,
Wherein the nonwoven fabric layer is made of a spunbonded nonwoven fabric or a spunlaced nonwoven fabric made of polyethylene, polypropylene, polyester or nylon. The method according to claim 1,
Wherein the laminate is manufactured by thermally bonding a breathable film layer, an air permeable polyurethane adhesive layer and a nonwoven fabric layer. The method according to claim 1,
Wherein the laminate has a moisture permeability of from 2,000 to 10,000 g / m < 2 > .24 hrs. The method of claim 1, further comprising:
Wherein the bedding is selected from a mattress, pillow, duvet, blanket.

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