KR102074196B1 - Spunlace Nonwoven Fabric Sheet For Mask Pack With A Layered Structure And Method For Manufacturing The Same - Google Patents

Abstract

The present invention is a layered water flow nonwoven mask pack sheet, comprising a base layer of a spunbond nonwoven fabric consisting of olefin fibers and a face layer of a spunlace nonwoven fabric composed of natural fibers, wherein the natural fibers are cotton fibers, cellulose fibers, bamboo It relates to a layered water flow nonwoven mask pack sheet, characterized in that it is selected from the group consisting of fibers, pulp fibers and combinations thereof.

Description

Spunlace Nonwoven Fabric Sheet For Mask Pack With A Layered Structure And Method For Manufacturing The Same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a layered water flow nonwoven mask pack sheet and a method for manufacturing the same, and a layered nonwoven fabric mask pack sheet of spunbond synthetic fibers and natural fibers by water flow.

In modern society, active oxygen is generated in large quantities by ultraviolet rays, water pollution, etc. due to destruction of exhaust gas, harmful chemicals, ozone layer, etc., and these active oxygen penetrate into human body and cause various side effects, especially pigment change and skin aging. It is known as the main cause.

In addition, in recent years, leisure activities in the open air have been increasing. During leisure activities, skin damage and skin aging are inevitable because the skin of the body is directly exposed to the above-mentioned contaminants more easily. It has a negative effect on the trend to enjoy more active and pleasant.

In order to improve such a problem, a number of cosmetic pads comprising sheets in the form of faces have been developed and supplied. These cosmetic pads cover the face so that the functional pack liquid, which is composed of beneficial ingredients for skin beauty on the inner side of the pack, is allowed to penetrate the skin to give moisturizing effect to the skin and prevent and treat fine wrinkles.

In particular, the mask pack is generally composed of a multi-layer structure that is excellent in flexibility and adhesion when applied to the skin, and does not tear when used.

Non woven fabric is not squeezed using warp and weft like cloth, and the fibers with a certain thickness and length are spread out thinly and broadly by carding process, and then stacked in several layers, such as needle punching or water flow coupling. Refers to felt bound by physical means or by chemical means by chemical bonding

According to the manufacturing process of non-woven fabrics, the fibers are first entangled with high pressure water flow, mechanically bonded spunlace, spunbond directly bonded by spinning, and mainly bonded by self-adhesive, ultrafine fibers without binder It can be divided into a melt blown, a needle punch of combining the web with a special needle, and finally a non-woven fabric of a stitch bond method made by sewing with a thread. Melt blown nonwoven fabric has the advantage of excellent flexibility.

Nonwoven fabrics include various fibers from natural fibers to chemical fibers, but generally used cotton, rayon, polypropylene, polypropylene, nylon, etc., and acrylic, vinylon, glass fiber, pulp, and carbon fiber. have.

Cotton and rayon are needle punch, chemical bond, and spunlace method. Polyester, polypropylene, and nylon filaments are mainly spun-bond, polyester, Polypropylene staples are needle punches, nylon staples are chemical bonds, acrylic needle punches, vinylon, fiberglass, and pulp are mainly wet.

Nonwoven packs, classified as first-generation sheet masks, are products in which liquids such as skins and essences are applied to nonwovens mixed with rayon and polypropylene. However, due to the blend material, there was a limit of absorption due to skin irritation problems and monolayer structure.

Since then, the second generation of cotton mask packs, which replaced nonwoven with cotton, appeared. The use of pure cotton known as natural fibers instead of synthetic blends minimizes skin irritation. Absorption and adhesion are also improved over nonwoven fabrics, but the limitation of absorption due to the monolayer structure and the problem of essence flowing down are still pointed out.

Korean Patent Publication No. 10-0820073 relates to a nonwoven fabric using a multilayered cellulose structure and a nonwoven mask using the same, and has a high absorption power by using a multilayered cellulose structure in which cellulose fibers are used as an intermediate absorption layer and both outer surfaces are laminated with cellulose sheets. A nonwoven fabric and a nonwoven mask having excellent moisturizing power and flexibility in contact with skin are disclosed. However, as the multilayer structure of cellulose, the adhesion and absorbency have excellent advantages, but there is a problem of tearing in use.

The present invention has been made to solve the above problems, the present invention is to provide a non-woven mask pack sheet having a skin adhesion and a soft touch.

In another aspect, the present invention to provide a non-woven mask pack sheet having a layered structure of synthetic fibers and natural fibers in order to maximize skin adhesion and soft touch.

The present invention is a layered water flow nonwoven mask pack sheet, comprising a base layer of a spunbond nonwoven fabric consisting of olefin fibers and a face layer of a spunlace nonwoven fabric composed of natural fibers, wherein the natural fibers are cotton fibers, cellulose fibers, bamboo A layered water flow nonwoven mask pack sheet is selected from the group consisting of fibers, pulp fibers, and combinations thereof.

In another aspect, the present invention provides a layered water flow nonwoven mask pack sheet of the layer structure characterized in that the skin active ingredient is contained in the water flow nonwoven mask pack sheet.

In another aspect, the present invention, the composition of the olefin fiber of the base layer is a polypropylene or polyethylene resin, the polyethylene resin is a high density polyethylene (HDPE) or low density polyethylene (LDPE) or linear low density polyethylene (LLDPE), the spunbond nonwoven base material layer Silver resin provides a layered water flow nonwoven mask pack sheet characterized by being a single structure composed of one kind of olefin fibers or a multilayer structure composed of different kinds of olefins.

In another aspect, the present invention provides a layered water flow nonwoven mask pack sheet, characterized in that the addition of 0.1 to 10% by weight of polyolefin elastomer (PolyOlefin Elastomer) to the base layer composition.

In another aspect, the present invention provides a layered water flow non-woven mask pack sheet characterized in that the weight ratio of the base layer and the face layer is 10 ~ 90 to 90 ~ 10.

In another aspect, the present invention provides a method for producing a layered water flow nonwoven mask pack sheet, comprising: preparing a base layer of a spunbond nonwoven fabric using olefin fibers of an olefin resin composition; Preparing a face layer of a spunlace nonwoven fabric using natural fibers on one surface of the spunbond nonwoven fabric; And it provides a method for producing a water flow entangled nonwoven mask pack sheet having a layered structure comprising a drying step.

In the present invention, the composition of the olefin fiber of the base layer is a polypropylene or polyethylene resin, the polyethylene resin is any one or two or more of high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) Are mixed,

The spunbond nonwoven substrate layer provides a layered water flow nonwoven mask pack sheet manufacturing method characterized in that the resin is a single structure composed of one type of olefin fibers or a multilayer structure composed of different olefin types.

In another aspect, the present invention provides a method for producing a water flow entangled nonwoven mask pack sheet of the layer structure characterized in that the weight ratio of the base layer and the face layer is 10 ~ 90 to 90 ~ 10.

The nonwoven mask pack sheet of the present invention has excellent skin adhesiveness by using a synthetic fiber nonwoven fabric, and a soft touch can be expressed on the skin by adding a natural fiber nonwoven fabric.

In addition, the present invention, the synthetic fiber nonwoven fabric has a drying effect of preventing cosmetics and also has a breathable effect due to the structural characteristics of the nonwoven fabric.

In addition, the present invention has an environmentally friendly feature that does not use an adhesive bonding method of the synthetic fiber nonwoven fabric and natural fiber nonwoven fabric.

1 is a conceptual diagram of a cross section of a mask pack sheet according to the present invention.
Figure 2 is a conceptual diagram of the spunbond spinning equipment used in the production of synthetic fiber nonwoven fabric of the present invention mask pack nonwoven fabric.

Hereinafter, a preferred embodiment of the present invention will be described in detail. First, in describing the present invention, a detailed description of related known functions or configurations will be omitted so as not to obscure the subject matter of the present invention.

As used herein, the terms 'about', 'substantially', and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the meanings indicated are intended to aid the understanding of the invention. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

The present invention relates to a layered water flow nonwoven mask pack sheet. In more detail, the present invention is a structure in which the base layer 10 of the spunbond nonwoven fabric made of polyolefin fibers and the face layer 20 of the spunlace nonwoven fabric made of natural fibers are laminated.

The natural fiber is selected from the group consisting of cotton fiber, cellulose fiber, bamboo fiber, pulp fiber and combinations thereof. The method of adhering the face layer 20 to the base layer 10 is based on the spunlace process. Adhesion is caused by water flow.

First, the substrate layer 10 will be described as a spunbond nonwoven fabric composed of olefin fibers. The composition of the olefin fiber is a polypropylene or polyethylene resin, the polyethylene resin may be any one or two or more of a high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE).

In addition, 0.1 to 10% by weight of polyolefin elastomer (PolyOlefin Elastomer) relative to the composition of the olefin fibers may be added to the base layer as a masterbatch, and the elongation of the base layer may be increased.

The spunbond nonwoven substrate layer is characterized in that the resin has a single structure composed of one kind of olefin fibers or a multilayer structure composed of different olefin types.

2 is a view showing a conceptual diagram of a spunbond spinning equipment for producing a long-fiber elastic nonwoven fabric used in the mask pack base layer 10 of the present invention. The non-woven fabric process using the spunbond spinning equipment 100 includes a process of directly spinning a polymer into a continuous filament, and is a bonding process for preliminarily preheating and laminating a web and forming a web and promoting bonding between fibers and stabilizing a shape. It is characteristic that it is made.

Before manufacturing the spunbond nonwoven fabric using a polyolefin resin using a spunbond machine, the raw material should be dried to reduce the dosing input blockage problem and the hydrolysis due to moisture in the extruder 110 when melting the raw material. . After crystallizing at 80 ° C. for 3 hours using a dehumidifying dryer or a vacuum dryer, drying was performed at 110 ° C. for 10 hours to remove residual moisture.

The dried polyolefin resin is melted in the extruder 110 and then spun into a continuous filament through a spinning nozzle through a filter device of the spinning machine 120. When the filament is moved to the cooling chamber, the filament flows across the filament as the filament passes through the chamber, and the molten filament solidifies. In the manufacturing process of the spunbond nonwoven fabric, the stretching is different from the high-dose method used for the conventional fiber spinning, so that the high-speed air is fed in parallel to the filament to stretch the individual filaments, thereby stretching and cooling the filament in a single process.

After the spun filament fibers are integrated in the conveyor belt 130 and the first crimp in the nip roller (140) and then the second compression to a temperature of 130 ℃ or more, 180 ℃ or less in the calendar 150 roll Is done. After the constriction of the nonwoven fabric is imparted by the compression, the long fiber elastic nonwoven fabric is manufactured by winding the winding machine 160.

Next, a nonwoven fabric is manufactured by stacking a nonwoven web of natural fibers through a spunlace process of bonding natural fibers to one surface of the base layer 10, which is the polyolefin spunbond nonwoven fabric, by water flow.

The natural fiber may be selected from the group consisting of cotton fibers, cellulose fibers, bamboo fibers, pulp fibers and combinations thereof. The cellulose fiber lyocell, rayon, cotton and hemp may be selected from the group consisting of.

The spunlace manufacturing process supplies a natural fiber on the base layer 10 and sprays a powerful jet stream to pile up a natural fiber nonwoven web on the base layer 10 and at the same time, the base layer 10 is water-linked to form a mold. The nonwoven sheet will be formed. The natural fiber layer manufactured by the water flow bonding method may select the size of the air permeability distributed in the nonwoven fabric according to the selection of the polyolefin fiber nonwoven fabric which is the base layer 10. This results in excellent absorbency and bulkiness.

Therefore, when used as a mask pack can contain a large amount of the active ingredient, it can be used in a moist state to the skin for a long time can enhance the effect of the beauty pack. As the skin active ingredient, those known in the art may be used, and specifically, for example, adenosine, arbutin, hyaluronic acid, glycerin, butylene glycol, marine collagen, gut extract, tocopheryl acetate, disodium id, Ethylhexanediol, vitamins, Bulgarian rose oil, peony root extract, grape seed oil, caviar, snail mucus, aloe, haenan potato extract, honey, ginseng extract, acai berry extract, donkey oil and glyceryl caprylate. However, it is not limited thereto.

The face layer 20, which is a non-woven fabric of natural fiber, is formed with a thickness of 0.01 to 2 mm, but when it is thinner than the thickness, sufficient content of an active ingredient, such as a beauty essence, is difficult, and when thicker than the thickness, the face layer 20 becomes too thick and has low flexibility. The adhesion is inferior.

The nonwoven mask pack sheet of the layered structure according to the present invention is characterized in that the interlayer 10 is formed with a thickness of 0.01 ~ 2mm and the face layer 20 is formed with a thickness of 0.01 ~ 1mm, than the above thickness If it is thin, it is difficult to manufacture, and if it is thicker than the thickness, it becomes too thick, resulting in poor adhesion to the skin.

In addition, the weight ratio of the base layer 10 and the face layer 20 is characterized in that 10 to 90 to 90 to 10. In order to maintain the mask pack sheet which holds each characteristic as the base material layer 10 and the face layer 20, at least 10 weight ratio of each layer structure is required.

In addition, the weight of the mask sheet to which the base layer 10 and the face layer 20 are bonded is preferably 50 to 70 gsm. If it exceeds 70 gsm, the weight per unit area is too large, which means that the density of the nonwoven fabric is large, so that the voids between the constituent fibers may be reduced, thereby lowering the moisture content.

On the other hand, if less than 50gsm, the density of the nonwoven fabric is low, so that the voids are large, particularly because the pores of the base layer 10 may easily dry moisture in the skin active ingredient impregnated in the mask pack sheet.

The method of manufacturing a water flow entangled nonwoven mask pack sheet having a layered structure includes preparing a base layer 10 of a spunbond nonwoven fabric using polyolefin fibers of a polyolefin resin composition; Manufacturing a face layer 20 of a spunlace nonwoven fabric using natural fibers on one surface of the spunbond nonwoven fabric; And preparing a layered water flow nonwoven mask pack sheet comprising a drying step. In the spunlace process, the water entanglement pressure is 3 to 7 kgf / cm ² , more preferably 4 to 7 kgf / cm ² , and the drying temperature is set at 100 ° C.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, these examples are only presented to understand the content of the present invention and should not be construed that the scope of the present invention is necessarily limited to these embodiments.

Example  One

Addition of LLDPE / HDPE resin (5: 5 weight ratio) and polyolefin elastomer (POE) having a melting temperature (Tm) of 182 ° C. and an intrinsic viscosity (IV) of 1.53 in a common spunbond spinning facility 100 having a structure as shown in FIG. % Was injected into the raw material inlet 110, and spunbond spinning was carried out at the spinning extruder temperature 230 ℃.

A filament spun through a plurality of spinnerets was laminated on the conveyor belt 130 to prepare a base layer 10 that is a long fiber elastic nonwoven fabric having a weight of 50 g / m ² .

The substrate layer 10 was thus carded with cotton fibers and laminated with 1.0 mm webs, and then subjected to 5 kgf / cm ² hydroentangle pressure in a spunlace process, followed by drying at 110 ° C. for 30 minutes to form the substrate layer 10. The non-woven mask pack sheet, in which the face layer 20 laminated on one surface, was immersed in water, was prepared. The weight ratio of the base layer 10 and the face layer 20 is 50 to 50 and the weight of the mask pack is 50 gsm.

Example  2,3

A mask pack having an interlayer structure having the same base layer 10 and face layer 20 as in Example 1 was manufactured under the conditions shown in Table 1.

Comparative example  One

It is a spunlace nonwoven fabric composed of 100% cotton fiber.

Comparative example  2

It is a nonwoven fabric composed of 100% of polyester nonwovens on the market.

◎ Expansion rate

  -Stretch rate analysis method: The stretch rate was analyzed by cutting the nonwoven fabric 35cm wide and 35cm long and fixing the edges to the frame and dropping the baseball on the nonwoven fabric to measure the rebound height.

    Expansion rate formula = (rebound height / drop height) x 100

◎ Skin adhesion (skin adhesion)

   After punching the lifting mask sheet, the liquid cosmetic preparation was added by 10 times the weight of the substrate, and the wet lifting mask pack was attached to five faces, and the average time was obtained by measuring the time when the mask pack was peeled off the skin.

◎ Antimony Content

  Analysis of hazardous substances in accordance with Korea Food and Drug Administration Notice 2016-74

division Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2
Base layer
Spunbond Emission Conditions

Composition LLDPE /
HDPE (5: 5)
+ 3% by weight of POE HPDE LLPDE Spunlace nonwoven fabric consisting of cotton fibers only Company D polyester nonwoven fabric
TT70


Radiation temperature
(℃) 230 230 240 Discharge
(g / h / min) 0.35 0.6 0.7 Cooler
Temperature (℃) 18 18 18 Thickness of substrate layer
(mm) 1.0 1.2 1.5 2.0
Spunlace condition of face layer (cotton fiber) Water pressure
(kgf / cm2) 5 5 5 5 Drying temperature
(℃) 100 100 100 100 The thickness of the face layer
(mm) 0.8 0.8 0.8 2.0 Weight of mask pack sheet Weight (gsm) 50 50 50 60 60 Base layer vs. face layer
Weight ratio
50: 50 50: 50 50: 50


Properties

Elongation at Break
MD (%) 59.6 33.5 45.9 25 34.1 Elongation at Break
CD(%) 146.1 85.6 110.2 94.8 96.3 Skin adhesion
(Peel time)
(minute) 50 45 41 20 30 antimony
Content (ppm) 0 0 0 - 241

As shown in Table 1, the mask pack sheet composed of the base layer 10 and the face layer 20 has an elongation at break, particularly in the CD direction, of 110% or more, which is superior to that of the comparative example. This exhibits a feature of a mask pack having excellent elongation due to the excellent elongation of the nonwoven fabric using the polyolefin resin, which is the base layer 10, and excellent adhesion to the face. In particular, in Example 1 in which 3 wt% of the polyolefin elastomer was added to the base layer spunbond composition, the elongation at break MD and CD were 59.6% and 146.1%, respectively.

On the other hand, in Comparative Example 1, the elongation at break is 100% or less in the CD direction and the same also in Comparative Example 2.

Skin adhesion is superior to the comparative example in 40 minutes or more. The reason why the face layer 20 is a natural fiber nonwoven fabric can maintain the skin active ingredient, that is, moisture content for a long time, and the moisture can be contained for a long time. This is because it has the same non-woven pores to maintain breathability but prevent moisture from evaporating to the outside.

On the other hand, in Comparative Example 1, the nonwoven fabric composed only of cotton fibers does not have a base layer 10 that can block evaporation of moisture. The nonwoven fabric with only the base layer 10 is inferior in skin adhesion.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and alterations are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

10: base material layer 20: face layer
100: spunbond spinning equipment 110: inlet
120: emitter 130: net conveyor
140: nip roller 150: calendar roller (Calender Roller)
160: winder

Claims (8)

In the layered water flow nonwoven mask pack sheet,
The base layer of the spunbond nonwoven fabric consisting of olefin fibers and the face layer of the spunlace nonwoven fabric composed of natural fibers,
The base layer has a thickness of 0.01 ~ 2mm, the face layer has a thickness of 0.01 ~ 1mm, the weight of the mask pack sheet is 50 ~ 70gsm,
The natural fiber is selected from the group consisting of cotton fiber, cellulose fiber, bamboo fiber, pulp fiber and combinations thereof,
The composition of the olefin fiber of the base layer is a polypropylene or polyethylene resin, the polyethylene resin is a mixture of two or more of high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE),
0.1-10% by weight of polyolefin elastomer (PolyOlefin Elastomer) is added to the substrate layer
The spunbond nonwoven base material layer is a layered water flow nonwoven mask pack sheet, characterized in that the resin is a single structure consisting of one type of olefin fibers or a multilayer structure composed of different olefin types.
The method of claim 1,
The water flow entangled nonwoven mask pack sheet of the layered water flow entangled nonwoven mask pack sheet, characterized in that the skin active ingredient is included.
The method of claim 1,
The composition of the olefin fiber of the base layer is a polypropylene or polyethylene resin, the polyethylene resin is any one or two or more of a high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) is mixed,
The spunbond nonwoven base material layer is a layered water flow nonwoven mask pack sheet, characterized in that the resin is a single structure consisting of one type of olefin fibers or a multilayer structure composed of different olefin types.
The method of claim 1,
A layered water flow nonwoven mask pack sheet, characterized in that the addition of 0.1 to 10% by weight of polyolefin elastomer (PolyOlefin Elastomer) compared to the composition of the olefin fiber to the base layer.
The method of claim 1,
The weight ratio of the base layer and the face layer is a water flow entangled nonwoven mask pack sheet of the layer structure characterized in that 10 to 90 to 90 to 10.
In the method of manufacturing a water flow entangled nonwoven mask pack sheet of a layer structure,
Preparing a base layer of a spunbond nonwoven fabric using olefin fibers of an olefin resin composition;
Preparing a face layer of a spunlace nonwoven fabric using natural fibers on one surface of the spunbond nonwoven fabric; And Method of producing a layered water flow entangled nonwoven mask pack sheet comprising a drying step.
The method of claim 6,
The composition of the olefin fiber of the base layer is a polypropylene or polyethylene resin, the polyethylene resin is any one or two or more of a high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) is mixed,
The spunbond nonwoven substrate layer is a resin layer is a single layer structure consisting of a single olefin fiber or a multilayer structure composed of different olefin types, characterized in that the layered water flow entangled nonwoven mask pack sheet manufacturing method.
The method of claim 6,
The weight ratio of the base layer and the face layer is 10 to 90 to 90 to 10 characterized in that the layered water flow entangled nonwoven mask pack sheet manufacturing method.

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