KR102336703B1 - Spunlace Nonwoven Fabric With Cool Feeling - Google Patents

Abstract

The present invention is a spunlace nonwoven fabric in which 10 to 90% by weight of polyester short fibers and 90 to 10% by weight of natural fibers are entangled with water, wherein the polyester short fibers are W-shaped single-sided fibers alone or fibers mixed with heteromorphic single-sided fibers And, the heterogeneous cross-section fiber is divided into a heterogeneous cross-section general fiber or a hetero-shaped cross-section hollow fiber in the hollow hollow fiber of the cross-section, and is composed of any one or a mixture of a heterogeneous cross-section general fiber or a heterogeneous cross-sectional hollow fiber, and the fiber mixed with the deformed cross-sectional fiber is composed of a W-shaped cross-sectional fiber to a non-uniform cross-sectional fiber in a weight ratio of 5: 95 to 95: 5, and the natural fiber is a feeling of cold composed of any one of cotton fibers, cellulose fibers, rayon fibers, bamboo fibers, pulp fibers, or mixed fibers thereof. It relates to an effective spunlace mixed fiber nonwoven fabric.

Description

Spunlace Nonwoven Fabric With Cool Feeling

The present invention relates to a spunlace mixed fiber nonwoven fabric, and more particularly, to a water flow entanglement spunlace mixed fiber nonwoven fabric having excellent liquid absorption and cooling effect by fast drying by mixing natural fibers and PET short fibers having a large cross-sectional area.

The skin has various functions, such as a barrier role to protect the inside from external stimuli and temperature regulation, and is regarded as an important beauty criterion. Since the skin is an organ that primarily receives external stimuli, it is easy to cause problems due to various external stimuli. And it has been established as a major stress factor for those who prefer clean skin.

To solve this problem, in the past, natural substances such as cucumbers, potatoes, green tea, eggs, flour, and aloe were used as they are, or heat was removed by applying them to the skin with a little processing.

However, when a natural pack using a natural material is directly attached to the skin, there is a disadvantage that the active ingredient of the natural substance is excessively absorbed or other skin problems may be caused due to the action of ingredients other than the active ingredient, and the natural pack is applied to the skin. Relatively much time and effort are required to process it into an attachable form.

In general, the non-woven fabric used in the mask pack is a sheet-like fabric made by bonding or tangled fiber aggregates mechanically, chemically or thermally without going through weaving, weaving or knitting processes, and the fibers are arranged in parallel, theodolite or indefinite directions. It refers to bonding by bonding a thin felt-shaped web with an adhesive or by mixing thermoplastic fibers in the web and melting it by means of heating and pressing.

These non-woven fabrics have been used as wicks and filtering cloths, and their uses are expanding, and the previously used industrial fabrics, plastic reinforcement materials, heat and electrical insulation materials, fabrics for covering products, bags for export, bandages as sanitary materials, Diapers, sanitary covers, bibs, napkins, table cloths, towels, curtains, futons, upholstery materials, medical wicks, bats, petticoats, wetsuits, skirts, etc. Conventionally, it is also widely used for a sheet for a cosmetic mask pack.

In order to give the skin a feeling of cooling and heat, the ingredients contained in pars or cosmetics used as quasi-drugs contain small amounts of menthol, sorbitol, peppermint oil, etc., which have a function of giving a refreshing feeling to the skin, but lowering the actual skin temperature is No, it is known to cause severe irritation to the skin when used in large amounts, so there are many restrictions especially for use on the face.

And, in the case of a conventional mask sheet, the compatibility with the cooling agent is not good, so the adhesion rate of the cooling agent to the support of the mask sheet is low, and the contact force and adhesion with the skin are poor, so the cooling agent and/or the skin of the mask sheet. There was a problem in that the ability to deliver nutrients was reduced.

An object of the present invention is to provide a spunlace mixed fiber nonwoven fabric that is composed of a fine diameter and has a smooth surface and a high specific surface area without additional processing, which can maximize the cooling effect on the skin by the liquid absorption and volatility of the nonwoven fabric.

In order to solve the above problems, the present invention is a spunlace nonwoven fabric in which 10 to 90% by weight of polyester staple fibers and 90 to 10% by weight of natural fibers are entangled with water, and the polyester staple fibers are W-shaped single-sided fibers alone. Or it is a fiber mixed with a heteromorphic cross-section fiber, The heterogeneous cross-section fiber is divided into a deformed cross-section general fiber or a hetero-shaped cross-section hollow fiber in the hollow hollow fiber of the cross-section, and is composed of any one or a mixture of a deformed cross-section general fiber or a heterogeneous cross-section hollow fiber, The fiber mixed with the heteromorphic cross-sectional fiber is composed of a W-shaped cross-sectional fiber to the deformed cross-sectional fiber in a weight ratio of 5: 95 to 95: 5, and the natural fiber is cotton fiber, cellulose fiber, rayon fiber, bamboo fiber, pulp fiber, or these It provides a spunlace mixed fiber nonwoven fabric having a cooling effect composed of any one of the mixed fibers of

In addition, the polyester short fiber of the present invention provides a spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that the fineness is 0.1 to 10 denier, and the fiber length is 20 mm to 100 mm.

In addition, the heteromorphic cross-sectional fiber of the present invention provides a spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that it has a multi-leaf shape structure, and has a four or more leaf structure.

In addition, the natural fiber of the present invention provides a spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that the fineness is 0.1 to 10 denier, and the fiber length is 20 mm to 100 mm.

In addition, the present invention provides a spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that the basis weight of the mixed fiber nonwoven fabric is 20 to 100 gsm.

The present invention is a spunlace nonwoven fabric in which natural fibers and fine PET short fibers with a large cross-sectional area are mixed with fine diameter. is characterized by maximizing

1 is a cross-sectional view of various short polyester fibers in the configuration of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail. First, in describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the gist of the present invention.

As used herein, the terms 'about', 'substantially' and the like are used in a sense at or close to the numerical value when the manufacturing and material tolerances inherent in the stated meaning are presented, and serve to enhance the understanding of the present invention. To help, precise or absolute figures are used to prevent unfair use by unconscionable infringers of the stated disclosure.

The present invention relates to a spunlace blend nonwoven fabric having a cooling effect, and is a spunlace nonwoven fabric in which 10 to 90% by weight of polyester short fibers and 90 to 10% by weight of natural fibers are entangled with water.

1 is a cross-sectional view of various short polyester fibers of the present invention. The polyester short fiber is a single W-shaped cross-sectional fiber or a fiber mixed with a different cross-sectional fiber, and the fiber mixed with the irregular cross-sectional fiber has a W-shaped cross-sectional fiber to a different cross-sectional fiber in a weight ratio of 5: 95 to 95: 5. to be.

The natural fiber may be composed of any one of cotton fiber, cellulosic fiber, rayon fiber, bamboo fiber, pulp fiber, or mixed fibers thereof. belong

In addition, the natural fiber is characterized in that the fineness is 0.1 to 10 denier, the fiber length is 20 mm to 100 mm.

The spunlace nonwoven fabric manufacturing method of the present invention may be manufactured by opening the polyester short fibers and natural fibers, then kneading the fibers to form a web, and water punching the web. In this case, the water punch may be performed by supplying water at a water pressure of 70 to 350 bar.

In this manufacturing method, after forming the web, a process of needle punching the web may be further performed before water punching. Since the degree of fibrillation of the short fibers can be further increased by the addition of the needle punch process, it is possible to exhibit further improved strength, moisturizing power and skin adhesion by having lower air permeability and small pores. The specific method and conditions of the needle punch process are in accordance with the conventional manufacturing method of spunlace nonwoven fabric.

In addition, in the manufacturing method, in the water punch process, first, the web is preliminarily water punched with a water pressure of 50 to 150 bar (preliminary water punch), and then water punched with a water pressure of 70 to 350 bar (main water punch), at this time, in the main step, water punching is performed at a higher water pressure than in the preliminary step. As such, by first performing the preliminary water punch process of water punching the web with low water pressure, it is possible to suppress loss or damage to the aramid fibers constituting the web by suddenly water punching the web with high water pressure, and the short fibers can be effectively fibrillated.

And, in the manufacturing method, in the water punching process, it is preferable that water punching is performed on both sides of the web.

The polyester short fibers of the present invention are characterized in that the fineness is 0.1 to 10 denier, and the fiber length is 20 mm to 100 mm. When short fibers having a very small diameter, such as the fineness, are included, the hardness of the fibers is lower than when only natural fibers are formed, and thus the flexibility of the nonwoven fabric is improved.

In addition, since the short fibers of the fineness are low in hardness and flexible, they have a soft feeling in contact with the skin. In addition, if the water pressure of the spunlace is adjusted, the natural fibers can be effectively fibrillated, which can double the tactile feel of the spunlace.

The present invention can be used by mixing the constituent fibers of the polyester short fibers alone or with the W-shaped cross-section fibers alone or with the hetero-type cross-section fibers. The heteromorphic cross-sectional fiber has a multi-lobed structure, and is characterized in that it has a structure of four or more. It also includes a hollow fiber with a hollow cross-section in its cross-section.

As the W-shaped cross-section fiber is essential, it is superior in moisture absorption and volatility due to the ease of securing space between fibers than a nonwoven fabric composed of only natural fibers and simple non-woven fibers, and the feeling of contact with the skin is improved due to the specific surface properties, and additionally The hollow structure may reduce the basis weight of the nonwoven fabric.

The basis weight of the mixed fiber nonwoven fabric for a mask pack of the present invention is characterized by a basis weight of 20 to 100 gsm, and when it exceeds 100 gsm, the space between the fibers of the nonwoven fabric is insufficient, so the water absorption power for the mask pack may be lowered. Because moisture only passes through the mixed fiber nonwoven fabric, there is no cooling effect due to absorption and volatility.

Hereinafter, the configuration and effect of the present invention will be described in more detail through specific examples and comparative examples in order to facilitate understanding of the present invention. However, the following examples are only provided for a more clear understanding of the present invention, and are not limited to the following examples of the present invention.

< Example 1>

80% by weight of short PET fibers (W-shaped short fibers vs. 4-lobes short fibers 5:5) with an average length of 50 mm and 3.0 denier and 20% of Lyocell, a natural cellulosic fiber with an average length of 50 mm and 5.0 denier Weight % Opened by a conventional carding method to form a web. At this time, it was laminated using a general cross wrapper to form a web of 50 gsm level.

Then, the web is needle-punched once at a density of about 400 pps in a needle puncher, and then the web is watered while supplying water at a water pressure of 200 bar using a nozzle formed with a nozzle diameter of 0.1 mm and a nozzle density of 16 units/cm. The mixed fiber nonwoven fabric for the mask pack of the present invention was prepared by punching. At this time, in the water punch process, water was supplied to only one side of the web.

< Example 2~4>

The types and characteristics of the fibers are shown in Table 1 below, and the manufacturing method is the same as in Example 1.

< comparative example 1-2>

The types and characteristics of the fibers are shown in Table 1 below, and the manufacturing method is the same as in Example 1.

*Cool test

Measure the temperature change over time after immersing the mask sheet in water in a constant temperature and humidity environment (20℃, humidity 20%)

* Cooling (cooling) satisfaction test

Sensory evaluation of 40 subjects → After wearing a mask sheet immersed in water, the cooling performance satisfaction was evaluated, and the score averaged (no cooling effect at the minimum 0 points ~ the cooling effect is felt, the maximum 10 points) .

* Moisture absorption

After drying the nonwoven fabric (5cm×5cm) with a basis weight of 50 gsm, the weight (W1) and tweezers are used to immerse the nonwoven fabric in water for 10 seconds, then take it out and expose it to the air for 5 seconds, then measure the weight (W2). Measure the % of the increased weight before and after immersion compared to before immersion.

Water absorption (%) = (W2-W1)/W1 ×100

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 A PET Short Fiber W section 5 + 4 leaves 5 W section 5 + 4 leaves 5 W section W section 5 + 4 leaves (normal: hollow 1:1)5 - 4-leaf plain short fiber B natural fiber Lyocell Lyocell Lyocell Lyocell Lyocell Lyocell A: B weight ratio 80:20 50:50 80:20 80:20 0 : 100 80: 20 Non-woven basis weight gsm 50 50 50 50 50 50 time after immersion
Non-woven fabric temperature measurement 0 minutes 20 20 20 20 20 20 10 minutes 16 16.05 15.95 16.10 16.1 16.7 20 minutes 14.5 14.55 14.45 15.60 15.15 16.35 30 minutes 13.45 13.8 13.22 13.40 14.7 15.4 Cooling satisfaction
(Average score for 40 people) 0 to 10 points 9.5 8.5 9.0 8.3 3 2.1 water absorption
(Amount of water absorption relative to weight of nonwoven fabric) % 1498 1387 1461 1352 829 813

Example 1 is a polyester staple fiber mixed in a weight ratio of W cross-section fiber to 4-leaf deformed staple fiber 5:5 as a short PET fiber, and as a natural fiber, a mixed fiber nonwoven fabric in which lyocell fiber, a cellulosic fiber, is mixed in a weight ratio of 8:2. In this same case, it is superior to the comparative example in cold sensitivity and skin sensitivity, and in particular, in Examples 3 and 4, which consisted of only W cross-section fibers as PET short fibers, and Example 4 containing some hollow fibers as 4-leaf short fibers, as in Example 1, An effect superior to that of the comparative example is generated.

However, when there is only lyocell fiber, which is a natural fiber cellulosic fiber (Comparative Example 1), and also when there is only a 4-leaf general short fiber (Comparative Example 2), the cooling effect and satisfaction evaluation were lower than those of Examples.

In addition, Examples 1 to 4 are superior to the comparative example in the water absorption capacity of the nonwoven fabric. This is a feature of the embodiment in which it is easy to secure the space between the short fibers of the nonwoven fabric, and since it has excellent moisture absorption ability into the space, the temperature of the skin with a sense of heat can be easily lowered by vaporization of moisture when it comes into contact with the skin.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have the knowledge of

Claims (5)

It is a spunlace nonwoven fabric in which 10 to 90% by weight of polyester short fibers and 90 to 10% by weight of natural fibers are entangled with water,
The polyester short fiber is a fiber mixed with W-shaped cross-sectional fiber alone or a heteromorphic cross-sectional fiber,
The heterogeneous cross-section fiber is divided into a heterogeneous cross-section general fiber or a hetero-shaped cross-sectional hollow fiber in a hollow hollow fiber of the cross-section, and is composed of either a heterogeneous cross-section general fiber or a heterogeneous cross-sectional hollow fiber, or a mixture,
The fiber mixed with the heteromorphic cross-sectional fiber is composed of a W-shaped cross-sectional fiber to the irregular cross-sectional fiber in a weight ratio of 5: 95 to 95: 5,
The natural fiber is composed of any one of cotton fiber, rayon fiber, bamboo fiber, pulp fiber, or a mixture thereof,
Spunlace mixed fiber nonwoven fabric with cooling effect of 1,300~1,500% of moisture absorption.
According to claim 1,
The polyester short fibers have a fineness of 0.1 to 10 denier, and a fiber length of 20 mm to 100 mm.
According to claim 1,
The heteromorphic cross-section fiber has a multi-leaf shape structure, and a spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that it has a four or more leaf structure.
delete According to claim 1,
The spunlace mixed fiber nonwoven fabric having a cooling effect, characterized in that the basis weight of the mixed fiber nonwoven fabric is 20 to 100 gsm.

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