KR20180064936A - Woven or knitted fabric compirising rayon for Mask sheet - Google Patents

Abstract

The present invention relates to a knitted fabric comprising rayon used for a face mask pack or a mask sheet which is a partial pack, and to a face mask pack or a mask sheet comprising the same, and more particularly, to a knitted fabric comprising rayon, which has unique tensile strength, rupture strength and hygroscopicity to have excellent feeling and moisture absorption, and to a facial mask pack or a partial pack.

Description

[0001] Description [0002] Woven or knitted fabric compilation rayon for Mask sheet for mask sheets [

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rayon knitted fabric used in a facial mask pack or a mask sheet which is a partial pack, and a method of manufacturing the same, and more particularly to a rayon-containing knitted fabric having excellent feeling, mechanical strength and water- .

In general, in the field of cosmetics, a sheet type mask pack is a product that can obtain a moisturizing and cleansing effect by attaching a face-shaped sheet to a face without needing to be hand-worn. A sheet divided into two sheets at the upper and lower ends, and a sheet (partial pack) tailored to specific areas such as under eyes, eyes, and mouth. The sheet-type mask pack has a support capable of supporting the emulsion so that it can act on the skin for a long period of time as compared with general cosmetic lotion, and by enhancing the skin penetration effect of the skin effect component by the occlusive effect provided by the support This is a form of cosmetic product with excellent moisturizing effect and skin care effect. Such a sheet of cosmetic mask pack generally uses a plant-cellulosic fiber or a non-woven fabric made of synthetic fiber from cotton or pulp as a fresh water body or a mask-like support of a cosmetic lotion. Such a nonwoven fabric is applied to a face having a most curved surface So that it is difficult to apply them smoothly.

For example, Korean Patent Registration No. 10-1308356 discloses a composite nonwoven fabric for facial mask sheet and a method for producing the composite nonwoven fabric, which comprises cross-lapping a web obtained by mixing cross-linked kwon fiber and viscose rayon fiber, And a composite nonwoven fabric for a facial mask sheet having antimicrobial and deodorizing properties while complementing hydrophobicity, and a process for producing the same. Here, the Kawak fiber is a hollow natural fiber having a fiber length of 8 to 32 mm and a thickness of 30 to 35 μm in a circular or elliptical shape. The hollow fiber has a density of 0.30 g / cc, a density of 1.54 g / / 5 < / RTI > light weight, which is light and elastic in addition to the fact that it has a gloss like a nut. However, the composite nonwoven fabric has a tensile strength in the MD direction of 5 to 60 N / 5 cm and a rupture strength of 4 to 7 kgf. However, it is well known that such a nonwoven fabric is disadvantageous in that it is hardly applied in a gentle manner when applied to a face having the most curved surface, and in addition to such a nonwoven fabric, a paper sheet or a film is used. However, have. Therefore, various materials researches have been attempted to develop a support having improved feeling in use, comfort, efficacy, and the like.

Under these circumstances, the inventors of the present invention have made intensive studies to develop a supporter which is more improved in terms of excellent feeling of use, comfort, and efficacy, and as a result, they have found that a woven fabric containing rayon is used as a facial mask pack or a partial pack, Or a partial pack, exhibits a significantly improved tensile strength, rupture strength and hygroscopicity, and exhibits excellent feeling of use and water absorption, thus completing the present invention.

In order to solve the above-mentioned problems, the present invention aims to provide a rayon-containing knitted fabric for a mask pack or a partial pack support.

It is another object of the present invention to provide a support for a mask pack or a partial pack, which comprises the rayon-containing woven fabric.

Hereinafter, the present invention will be described in detail.

In order to achieve the above object, the present invention relates to a rayon-containing knitted fabric for a mask pack or a partial pack support.

In the present invention, the term "rayon" means one of synthetic fibers, and is a fiber produced from a natural polymer obtained from a fiber as a main raw material. There are four kinds of rayon such as viscose rayon, copper ammonium rayon, high tenacity rayon, and polynosic rayon, and they are also called regenerated fibers since cellulose such as cellulose can be converted into a solution and then reduced to a fiber form.

Such a method for producing rayon may employ a rayon production method known in the art. For example, in the production method of viscose rayon, refined pulp is immersed in a caustic soda solution of 17.5% to convert it into alkali cellulosic, left to stand at a constant temperature for a certain period of time, aged and then carbon disulfide (CS ₂ ) (Xanthate), and the resulting solution is made into a sticky solution suitable for spinning while being ripened in a dilute caustic soda solution. When the solution is extruded from the spinneret into the coagulating solution, it is solidified and the celluloses Reproduced.

When the regenerated cellulose thus produced, that is, rayon is adequately stretched, a filament yarn as required is obtained, and the rayon-containing knitted fabric according to the present invention can be produced by cutting the yarn appropriately for spinning.

As used herein, the term "woven fabric" refers to a fabric and a knitted fabric. The term " woven fabric " refers to a fabric formed by entangling yarns in a transverse direction and a longitudinal direction. It says. Further, the knitted fabric may be a knitted fabric (also referred to as a tricot) or a circular knitted fabric, wherein the knitted fabric refers to a knitted fabric formed by threading yarns in an oblique direction (lengthwise direction) It means that the fabric is formed suddenly. In a preferred embodiment, the rayon containing knit according to the present invention may be in the form of circular knit and warp knit.

The present invention is directed to a knitted fabric "containing" such rayon, wherein the knitted fabric containing rayon may be a woven fabric made only of rayon yarn (i.e., rayon 100%), For the purpose of securing functions such as crimp ratio, elasticity and biodegradability, it is a knitted fabric made of yarn spun in the form of a mixture of other fiber materials besides rayon, or a composite yarn manufactured by mixing rayon and other kinds of fibers Means a knitted fabric.

The mixing ratio of rayon and other kinds of fiber raw materials or the mixture ratio of rayon and other kinds of fibers is preferably 99.9: 0.1 to 65:35 by weight. The fiber raw materials or fibers to be mixed or mixed with the rayon may be used without limitation and may be selected from, for example, cellulose acetate, kapok, polyester, nylon, polylactic acid (PLA), polyglycolic acid (PGA), polylactic glycolic acid PLGA) and the like.

In a specific embodiment, the rayon-containing woven fabric according to the present invention is hygroscopic with white or light white fibers, and in a preferred embodiment, the woven fabric has a thickness of 0.25 ± 0.05 mm when the warp knitted fabric is a warp knitted fabric and has a basis weight of 50 to 200 g / , And when the knitted fabric is a circular knitted fabric, the density is 100 count / 15 cm to 250 count / 15 cm as a wale number, and 50 count / 15 cm to 200 count / 15 cm as a course number. In this regard, if the thickness and basis weight, or the number of wales and the number of courses, are lower than the ranges indicated above, the density of the rayon knitted fabric is buried in the hydrogel structure of the mask pack or partial pack due to the sex machine, If the thickness, basis weight, or the number of wales and the number of courses are higher than the above-mentioned ranges, the density of the rayon knitted fabric is too dense, and the uniformity of the hydrogel structure and the rayon-containing knitted fabric is lowered. It is not preferable. When the rayon-containing knitted fabric satisfies the above-mentioned range, the rayon-containing knitted fabric becomes a 2-layer body integrally with the hydrogel structure in the mask pack or the partial pack, and functions as a support.

The modulus of elasticity (E-modulus) of the rayon containing knit of the present invention is in the range of 100 to 30,000 kgf / cm ² , more preferably 100 to 20,000 kgf / cm ² , most preferably 500 to 15,000 kgf / cm ² . When the modulus of elasticity is lower than the above range, the adhesion to the curved surface of the body in contact with the sheet is lowered. If the elastic modulus is higher than the above range, the functionality of the sheet as a support may be lowered. The tensile strength and the breaking strength of the rayon-containing knitted fabric of the present invention are such that the tensile strength in the machine direction of the rayon is 5 to 30 kgf / inch, more preferably 10 to 30 kgf / inch, Containing knitted fabric. The rayon-containing knitted fabric has a breaking strength of 5 Kgf to 30 Kgf, and more preferably 10 to 30 kgf. More specifically, in case of a circular knitted fabric, tensile strength in the MD direction is in the range of 10 to 20 kgf / inch, tear strength is 10 to 21 Kgf, tensile strength in the MD direction in the warp thread is in the range of 12 to 23 kgf / inch, Is 14 Kgf to 23 Kgf. If the tensile strength and the burst strength are below the above range, the knitted fabric may stretch at the time of manufacturing the mask pack or the partial pack, or may be torn in the case of the fabric. If the tensile strength and the burst strength are higher than the above range, When the curved surface is applied to the face, there is a disadvantage that it can not be smoothly applied.

Further, the rayon-containing knitted fabric according to the present invention is preferably characterized by exhibiting hygroscopicity of 100 to 150% of the dry weight of the rayon-containing knitted fabric. If the moisture content of the rayon-containing knitted fabric is higher than the above range, the rayon-containing knitted fabric will absorb too much water and increase the weight of the support. Therefore, The adhesive strength tends to decrease.

In another aspect, the present invention relates to a mask pack or a partial pack comprising the rayon-containing knitted fabric.

In the present invention, the above-mentioned "mask pack" is applied to the entire face to form a pack for delivering or penetrating the active ingredient to the skin, or to a part of the body including the face such as a & May be in the form of a pack that penetrates. Preferably, the mask pack or the partial pack may include a hydrogel for delivering the active ingredient, moisture, etc. to the applied skin. Specifically, the hydrogel may be a hydrogel used in a known mask pack without limitation. For example, such a hydrogel may contain a gelling polymer such as natural or synthetic gums, a skin active ingredient, a preservative, a surfactant, and a solvent, and may further include a flavor according to preference.

In a specific embodiment, a mask pack or a partial pack according to the present invention is characterized in that a part of the hydrogel structure in the hydrogel is impregnated into the rayon-containing knitted structure, whereby the hydrogel and the rayon- And a hydrogel is present, and preferably the thickness ratio of these two layers is between 30:70 and 10:90. That is, it is preferable that the thickness of the hydrogel-only tissue is 70% to 90% of the thickness of the rayon-containing knitted fabric as the support. In particular, when the rayon-containing knitted fabric according to the present invention is used as a support, excellent tensile strength and burst strength can be ensured even when the thickness of the hydrogel becomes thick.

The mask pack or the partial pack according to the present invention is prepared by adding and mixing the hydrogel components except for the solvent to the solvent and heating the mixture at a suitable temperature, for example, 60 to 90 ° C to hydrate to produce a hydrogel mixture, Containing razor knitted fabric support according to the invention with a releasable face or a film to be peeled off prior to use, or by pouring or applying on a rayon-containing knitted fabric support.

Accordingly, the rayon-containing knitted fabric of the present invention exhibits superior tensile strength, rupture strength, and absorbency compared to conventional products, and can function as a reservoir for storing moisture. Thus, when applied to a mask pack or a partial pack, The present invention provides an excellent property as a support for hydrogels in these packs, showing superiorly superior coating properties and adhesiveness, as well as preventing unwanted contact and contamination of hydrogels constituting the hydrogels, as well as excellent silky feeling of use .

As described above, according to the present invention, by using the rayon-containing knitted fabric not used in the conventional mask pack or the support of the partial pack, the mask pack or the portion to which the same is applied due to the enhanced tensile strength, Which provides excellent feeling of use, coating strength, mechanical strength and tackiness of the pack, and can be widely used for mask packs or partial packs.

1 is a SEM (30 times) photograph of a rayon-containing knitted fabric according to the present invention.

Hereinafter, the structure of the present invention will be described in more detail with reference to specific examples. However, it is apparent to those skilled in the art that the scope of the present invention is not limited by the descriptions of the embodiments.

Production Example 1: Production of a Rayon-containing Circular Knitted Fabric of the Present Invention

The method of manufacturing a rayon circular knitted fabric according to the present invention is a process of warping, weaving (circular), cleaning, tentering, heat treatment, drying, slitting, cutting and packaging. The scenic process uses Enka yarn filament from Germany as a process to judge the warped yarn into weaving. The weaving process is a weaving process through a circular knitting machine and weaving (circular) according to the thickness and basis weight described in the present invention. After that, it was washed with a detergent to remove radial emulsions and foreign matter, heat-treated the fabric, dried, cut to a desired size, packed with a PE packing material, and finally wrapped with an aluminum pouch. Weaving and weaving were carried out in Gyeongnam fiber and supplied.

Regarding the rayon-containing circular knitted fabric according to the present invention, a rayon circular knitted fabric manufactured using enka rayon filament made in Germany according to the present invention was supplied from Kyungnam fiber and used.

Production Example 2: Preparation of the rayon-containing warp knitted fabric of the present invention

The method of producing a rayon warp yarn according to the present invention is the same as the knitted fabric of Production Example 1 in that it is subjected to a process of warping → weaving → cleaning → tentering / heat treatment → drying → slitting / cutting → packaging, The only difference is that the process is not a circle but a task. (Warp-knitted) according to the thickness and basis weight described in the present invention through a warp knitting machine. After that, it was washed with a detergent to remove radial emulsions and foreign matter, heat-treated the fabric, dried, cut to a desired size, packed with a PE packing material, and finally wrapped with an aluminum pouch. Weaving and weaving were carried out in Gyeongnam fiber and supplied.

Regarding the rayon-containing warp knitted fabric according to the present invention, a rayon knitted fabric prepared by using Enka yarn rayon filament of Germany in accordance with the thickness and basis weight according to the present invention was supplied from Kyungnam fiber.

Example  1: Structure confirmation of the rayon-containing knitted fabric according to the present invention

The structure of the rayon-containing circular knitted fabric according to the present invention prepared in Preparation Example 1 was observed using a scanning electron microscope (SEM). The scanning electron microscope was a scanning electron microscope (SEM) manufactured by Jeol (Japan) SEM-EDS) JSM 6335F model, and the results are shown in FIG.

Example 2: Determination of tensile strength and burst strength of rayon-containing knitted fabric according to the present invention

The knitted fabric of the present invention was measured for tensile strength and rupture strength to compare it with a conventionally used nonwoven fabric. Specifically, the tensile strength and the burst strength of the composite nonwoven fabric produced according to the method disclosed in Korean Patent Registration No. 10-1308356 as a control group and the circular knitted and knitted fabrics according to the present invention prepared in Production Examples 1 and 2 Respectively. The tensile strength (MD) was measured by a Standard Test Method for Tensile Properties of Plastics (Designation: D638-10) of ASTM (American Society for Testing Materials) and 10 measurements were made using a Type 1 specimen. And 2, respectively. The rupture strength was measured by the rupture strength test (CRT ball burst method) of D 3787 fabric of ASTM, and the results are shown in Tables 1 and 2, respectively. As can be seen from the above results, the rupture strength of the rayon-containing circular knitted fabric of the present invention is higher than that of the composite nonwoven fabric disclosed in Korean Patent No. 10-1308356 by at least 6 times, at least 2.5 times, Water is higher than that of the composite nonwoven fabric of Korean Patent No. 10-1308356 by 6.5 times or 2.7 times or more.

The physical properties of the rayon circular knitted fabric according to the present invention division The tensile strength
(MD direction, Max force, kgf / inch) Burst strength
(kgf) Shinto (%) Modulus of elasticity
(kgf / cm ² ) Average 16.268 16.013 8.75 5830 Standard Deviation 2.23 2.83 0.27 538

The physical properties of the rayon warp yarn according to the present invention division The tensile strength
(MD direction, Max force, kgf / inch) Burst strength
(kgf) Average 15.98 17.65 Standard Deviation 0.73 1.56

Example  3: Rayon content according to the present invention Circular  Confirm hygroscopicity

The degree of hygroscopicity of the rayon-containing circular knitted fabric according to the present invention was measured. Specifically, the degree of hygroscopicity of the rayon-containing circular knitted fabric was measured as follows. A sample of the rayon-containing circular knitted fabric according to Production Example 1 was cut exactly to a predetermined size (1369 cm < 2 & Each sample was accurately weighed and recorded after thoroughly drying in a 90 oven for 30 minutes. The circular knitted fabric sample is immersed in a beaker containing water and sufficiently absorbed for about 5 minutes. The sample is then pinched in tweezers and fully spread to remove the moisture on the surface. Thin and soft tissues were finely spread on the knitted fabric and tapping was performed to completely remove the moisture on the surface of the rayon-containing knitted fabric and measure the weight. As a result, the weight of each sample absorbed water was 134.8 ± 3.3%, which indicates that the rayon-containing circular knitted fabric according to the present invention can sufficiently serve as a moisture reservoir for a facial mask pack or a partial pack Respectively.

As described above, the rayon-containing knitted fabric of the present invention can perform a role as a reservoir for storing water with superior tensile strength and breaking strength as compared with conventional products, and therefore can provide a suitable physical property as a support for a facial mask pack or a partial pack .

Claims (18)

Rayon-containing woven fabrics for mask packs or partial pack supports. The rayon-containing woven fabric according to claim 1, wherein the rayon-containing woven fabric is a woven fabric, a warp knitted fabric or a circular knitted fabric. The rayon-containing knitted fabric according to claim 1, wherein the rayon-containing knitted fabric is made of rayon alone, or a yarn spun into a mixture of rayon and non-rayon fiber materials, or a composite yarn mixed with fibers other than rayon and rayon Knitted fabric. The rayon containing knit fabric according to claim 1, wherein the rayon is viscose rayon. The knitted fabric according to claim 1, wherein the rayon-containing woven fabric is a white or light-white hygroscopic fiber having a thickness of 0.25 ± 0.05 mm and a basis weight of 50 to 200 g / Containing knitted fabric. The rayon-containing knitted fabric according to claim 1, wherein the rayon-containing knitted fabric is a white or light-white hygroscopic fiber having a density of 100 count / 15 cm to 250 count / 15 cm or a count of 50 count / 15 cm to 200 count / 15 cm Wherein the knitted fabric is in the form of a circular knitted fabric. The rayon-containing knitted fabric according to claim 1, wherein the modulus of elasticity of the rayon-containing knitted fabric is 100 to 30,000 kgf / cm ² . The rayon-containing knit fabric according to claim 1, wherein the tensile strength in the MD direction of the rayon-containing knitted fabric is 5 kgf to 30 kgf / inch. The rayon-containing woven fabric according to claim 1, wherein the rayon-containing knitted fabric has a breaking strength of 5 Kgf to 30 Kgf. The rayon-containing woven fabric according to claim 1, wherein when the rayon-containing woven fabric is a circular knitted fabric, the breaking strength is 10 Kgf to 21 Kgf. The rayon-containing woven fabric according to claim 1, wherein when the rayon-containing knitted fabric is a warp knitted fabric, the tensile strength (MD) is 12 kgf to 23 kgf. The rayon-containing woven fabric according to claim 1, wherein when the rayon-containing knitted fabric is a warp knitted fabric, the breaking strength is 14 Kgf to 23 Kgf. The rayon-containing woven fabric according to claim 1, wherein the moisture-absorbing property of the rayon-containing knitted fabric is 100 to 150%. 14. A mask pack or partial pack comprising a rayon containing knit fabric according to any one of claims 1 to 13 and a hydrogel. 15. The mask pack or partial pack of claim 14, wherein the hydrogel comprises a gelled polymer, a skin active ingredient, an antiseptic, a surfactant, and a solvent. The mask pack or partial pack according to claim 14, wherein the mask pack or the partial pack has a two-layer structure of a hydrogel and a rayon bonding layer and a hydrogel single layer. The mask pack or partial pack according to claim 16, wherein the thickness ratio of the hydrogel and the rayon bonding layer: hydrogel single layer is 30:70 to 10:90. 4. The rayon-containing knitted fabric according to claim 3, wherein the rayon-containing knitted fabric is made of a yarn spun by a mixture of the rayon and a fiber material other than rayon, or a composite yarn mixed with fibers other than rayon and rayon, 65:35. ≪ / RTI >

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