JPH10113222A - Cosmetic cotton - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain cosmetic cotton which has an excellent water absorptivity an water resistance an has stiffness and voluminous feel by incorporating polyester staple fibers and/or acrylic staple fibers at a specific ratio into the non- woven fabric of the cosmetic cotton consisting of an inside layer made of the non-woven fabric and an external material including the inside layer. SOLUTION: The cosmetic cotton used at the time of removing a user's makeup, etc., consists of the inside layer 1 made of the non-woven fabric an the exterior material 2 including the inside layer 1. In such a case, the polyester stapes fibers and/or the acrylic stapes fibers are incorporated at >=20wt.% into the non-woven fabric. The polyester stapes fibers are particularly preferably polyethylene terephthalate stapes fibers, for which the use of their copolymer and denatured matter is possible as well. Cotton is preferably incorporated into the non-woven fabric. The content of the cotton is recommended to be 5 to 80wt.% over the entire part of the nonwoven fabric. Further, the incorporation of binder stapes fibers, such as core and sheath type polyester stapes fibers and unstretched polyester yarn, into the non-woven fabric is possible as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cotton swab used for applying a lotion or a milky lotion, for removing makeup, and the like.

[0002]

2. Description of the Related Art Conventionally, this type of cosmetic cotton must be safe on the skin, have a soft feeling, moderate water absorption and water resistance, and be thick and have a desired firmness and volume.

[0003] For this reason, in general, a sheet of a selected pure cotton sheet is heat-sealed in a state of being folded into several layers, but it balances moderate water absorption / water resistance and stiffness / volume. It is difficult, and it is expensive and has the drawback that cotton dust adheres to the skin.

In order to improve this, for example, Japanese Utility Model Publication No. Sho 58-3
As disclosed in Japanese Patent No. 9608, there is a cosmetic cotton wrapped with an inner layer made of rayon staple cotton synthetic fiber and an outer material having a high rayon ratio, which can be manufactured at low cost, and has a moderate water absorption and water resistance. Despite its properties, it has the drawback that a firm and voluminous feeling cannot be obtained.

The present inventors have intensively studied to improve these drawbacks and to obtain a cosmetic cotton having appropriate water absorption and water resistance and a desired firmness and volume, and as a result, the present invention has been achieved. .

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a cosmetic cotton which has not been achieved by the prior art and which has excellent water absorption and water resistance and has a firm and voluminous feel.

[0007]

The cosmetic cotton of the present invention has the following constitution in order to achieve the above-mentioned object of the present invention.
That is, in a cotton wool composed of an inner layer made of a nonwoven fabric and an exterior material surrounding the inner layer, the nonwoven fabric contains 20% by weight of polyester short fibers and / or acrylic short fibers.
A cosmetic cotton comprising the above.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The cosmetic cotton of the present invention comprises an inner layer made of a non-woven fabric and an exterior material surrounding the inner layer. Here, the nonwoven fabric is made of polyester short fibers and / or acrylic short fibers. As a result, it is possible to obtain a cosmetic cotton having a firm and voluminous feel. In particular, it is preferable to use polyester short fibers.

As the polyester short fibers used in the present invention, polyethylene terephthalate short fibers are particularly preferred. Moreover, it is also possible to use the copolymer and the modified body. In order to prevent the non-woven fabric from being fused by heat setting as described later, it is preferable to use a polyester short fiber having a melting point of 150 ° C. or more, preferably 230 ° C. or more.

Furthermore, the cross-sectional shape of the short fiber is not particularly limited, and may be a polygonal cross-section such as a triangular cross-section, a square cross-section, a flat cross-section, a hollow cross-section, or the like, in addition to a round cross-section. Further, it may be a short fiber composited with different polymers, and the composite form may be a core-sheath type structure, a side-by-side type structure, a split type structure, or a sea-island type structure. Especially,
Combination of two or more polyester short fibers having different single fiber fineness, short fiber length, cross-sectional shape, and the like can provide a stiff and voluminous cotton.

As the acrylonitrile-based short fibers used in the present invention, acrylonitrile-based short fibers obtained by surface-treating a composition satisfying the following formula are preferable. This composition is a water-absorbing agent having permanent water absorption.

[0012]

Embedded image (Where R is H or CH ₂ , R ¹ is Cl, B
r, I, OCH ₃ , OC ₂ H ₅ or SCH ₃ ,
≦ m <10 and l ≧ 10) In the present invention, the content of the polyester short fibers and / or the acrylonitrile short fibers is at least 20% by weight, preferably 20% by weight of the whole nonwoven fabric from the viewpoint of imparting a firm and voluminous feel. % To 80% by weight, more preferably 30% by weight
To 70% by weight, more preferably 40% to 60% by weight.

It is preferable that the nonwoven fabric of the present invention contains cotton in addition to polyester short fibers and acrylonitrile short fibers. Thereby, the water absorption can be made very good. The content of cotton is 5% by weight to 80% by weight of the whole nonwoven fabric, preferably 1% by weight.
0% to 60% by weight, more preferably 20% to 4% by weight
The content is preferably 0% by weight.

The nonwoven fabric according to the present invention may further comprise polyester short fibers and acrylonitrile short fibers.
In order to adhere them and fix the shape, it is preferable to include binder short fibers. This makes it possible to bond the polyester short fibers and the acrylonitrile short fibers to each other and fix the shape of the nonwoven fabric by the heat setting of the nonwoven fabric described later.

Examples of the binder short fiber include a core-sheath type polyester short fiber having a low melting polymer as a core and a homopolymer as a sheath, and polyester undrawn yarn.
Among them, core-sheath type short fibers are preferred from the viewpoint of nonwoven fabric strength and adhesiveness. As the low melting point polymer, the melting point is 70 to 230.
C, preferably 90 to 150C. The content of the binder short fiber is 20% by weight or less, preferably 5% by weight, based on the sealing property of the exterior material and the characteristics of the cosmetic cotton.
% By weight to 15% by weight.

The short fibers used in the present invention include inorganic particles,
Additives such as organic particles and metal particles, internal particles due to catalyst residue, and the like may be contained, and known heat-resistant agents, antioxidants, light-resistant agents, fluorescent agents, flame retardants, and the like may be blended.

The exterior material of the present invention is a part that directly touches the skin, and examples of the material include cotton and synthetic fibers such as cotton and rayon.

FIG. 1 shows an example of the cosmetic cotton of the present invention. 1
Denotes an inner layer of a nonwoven fabric for storing lotion and the like, 2 denotes an exterior material, and 3 denotes a seal portion.

Such a cosmetic cotton can be manufactured, for example, as follows. The above short fibers are opened with a card device to form a web-like nonwoven fabric, and 70 to 2
The inner layer 1 is obtained by heat setting at 30 ° C., preferably 90 to 150 ° C. Thereafter, the inner layer 1 is laminated in a sandwich shape from both sides with the outer packaging material 2, and the inner layer 1 and the outer packaging material 2 are heated and pressurized together at a required number of places in the periphery to seal the outer layer.

[0020]

The present invention will be specifically described below with reference to examples.

(Example 1) Raw cotton having the following constitution was mixed, and a web was formed with an opener and a card device. Thereafter, heat bonding is performed using a heat treatment drum to obtain a basis weight of 7
A nonwoven fabric inner layer of 0 g / m ² was obtained.

[Raw Cotton Composition] (1) Polyethylene terephthalate short fiber 30% by weight (single fiber fineness: 6d, fiber length: 51 mm) (2) Polyethylene terephthalate short fiber 25% by weight (single fiber fineness: 2d, fiber length: 51 mm) (3) Binder short fiber 15% by weight Isophthalic acid copolymerized polyethylene terephthalate / polyethylene terephthalate core-sheath short fiber (single fiber fineness: 2d, fiber length: 51 mm) (4) Cotton 30% by weight The resulting nonwoven fabric was overlaid on both sides of the inner layer, heat-sealed with a thermocompression roll, and a 5 cm × 6 cm cotton wool was obtained with a cutter. According to a monitor test conducted by 30 people, the obtained cotton wool was excellent in water absorption and water generation, and excellent in stiffness and volume (Table 1).

(Example 2) Cosmetic cotton was obtained in the same manner as in Example 1 except that the composition of the raw cotton was changed to the following combination.

[Raw cotton composition] (1) Polyethylene terephthalate short fiber 20% by weight (single fiber fineness: 6d, fiber length: 51mm) (2) Polyethylene terephthalate short fiber 20% by weight (single fiber fineness: 2d, fiber length: 51mm) (3) Acrylonitrile short fibers 20% by weight (water-absorbing agent treatment: 1.0%) (4) Binder short fibers 10% by weight Isophthalic acid copolymerized polyethylene terephthalate / polyethylene terephthalate core-sheath short fibers (single fiber fineness: 2d, (Fiber length: 51 mm) (5) Cotton 30% by weight According to a monitor test conducted by 30 persons, the obtained cosmetic cotton was excellent in water absorption and water release of the lotion, and excellent in stiffness and volume (Table 1). .

Comparative Example 1 Cosmetic cotton was obtained in the same manner as in Example 1 except that the composition of the raw cotton was changed as follows.

[Raw cotton composition] (1) Binder short fiber 10% by weight Isophthalic acid copolymerized polyethylene terephthalate / polyethylene terephthalate core-sheath short fiber (single fiber fineness: 2d, fiber length: 51 mm) (2) Cotton 90% by weight Although the water absorption was excellent, the performance of stiffness and volume was inferior.

Comparative Example 2 Cosmetic cotton was obtained in the same manner as in Example 1 except that the composition of the raw cotton was changed as follows.

[Raw cotton composition] (1) Binder short fiber 10% by weight Isophthalic acid copolymerized polyethylene terephthalate / polyethylene terephthalate core / sheath short fiber (single fiber fineness: 2d, fiber length: 51 mm) (2) Rayon short fiber 30 weight % (3) Cotton 60% by weight The water absorption of the lotion was excellent, but the performance of stiffness and volume was inferior.

[0029]

[Table 1]

[0030]

The cosmetic cotton of the present invention is not only excellent in water absorbency and water resistance, but also very good in firmness and volume.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an example of a cosmetic cotton according to the present invention.

[Explanation of symbols]

 1: Internal layer 2: Exterior material 3: Seal part

Claims (3)

[Claims] 1. A cosmetic cotton comprising an inner layer made of a non-woven fabric and an exterior material surrounding the inner layer, wherein the non-woven fabric contains at least 20% by weight of polyester short fibers and / or acrylic short fibers. And cosmetic cotton. 2. The cosmetic cotton according to claim 1, wherein the nonwoven fabric contains cotton. 3. The cosmetic cotton according to claim 1, wherein the nonwoven fabric contains binder short fibers.