JPH0811084B2 - Cosmetic applicator and manufacturing method thereof - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cosmetic applicator and a method for manufacturing the same, and more specifically, it has a hygienic and highly functional application function for beauty instruction at a store, The present invention also relates to a low-cost disposable cosmetic applicator and a method for manufacturing the same.

[Conventional technology]

There are various types of makeup cosmetics such as lipsticks, blushers, and eye shadows, and brushes and brushes such as horse hair and goat hair have been conventionally used as applicators for these cosmetics, and foams such as rubber and polyurethane. An applicator that uses the body as an application piece is used.

On the other hand, at the time of selling makeup cosmetics, there is a strong tendency to actually carry out trial coating at stores or the like, and in this case also, makeup applicators are used.

[Problems to be solved by the invention]

However, applying cosmetics to an unspecified number of people with the same applicator at the time of trial application is not preferable in terms of hygiene from the viewpoint of application purpose (namely, eyes, lips, etc.).

Therefore, when different people apply the cosmetics by trial, it is necessary to wipe the applicator with a tissue paper each time, or to wash and dry the applicator.

The conventional applicator is expensive because it is a natural product such as horsehair and goat hair, and it is extremely uneconomical to use this applicator each time.

In addition, although it is an applicator that uses a foam as an application piece, this one also has a thin plate-like synthetic resin core surface coated with foam to form an application part, and then the application part is attached to the handle part with an adhesive. Or the core of a synthetic resin part integrally molded with the thick part that becomes the handle and the part that is thin as the core, or is formed by covering the foam with a specific shape. There is. Regardless of which method is used, in molding an applicator for applying a foam, the work of covering the cores one by one with a specific shape is performed by setting the synthetic resin bodies to be cores side by side. This is time consuming, requires a high manufacturing cost, and is uneconomical as a disposable applicator.

[Object of the Invention]

The present invention has been made in view of the above background, and an object thereof is to provide a sufficiently inexpensive makeup cosmetic applicator, which is used for beauty instruction at a store. Also allows the applicator to be disposable.

Specifically, it is intended to provide a makeup applicator and a manufacturing method, which have a simple specification as an applicator but have a sufficient application function as an applicator, and can be continuously produced at high speed in the production thereof. is there.

[Means for solving problems]

The present invention achieves the above object by a cosmetic applicator comprising a cellulose acetate fiber bundle, in which only the application part is formed of linear fibers and the other is formed as crimp-shaped fibers. Further, according to the present invention, after crimp-like fibers of cellulose acetate are bundled and subjected to a rod-making treatment, a first step of cutting into appropriate dimensions and one end of the rod obtained in the first step is sharpened. A second step of cutting to form a coated portion, and a crimp-shaped fiber to be a linear fiber by coating or dipping the coating portion obtained in the second step with a treatment liquid containing water. This is achieved by the method for manufacturing an applicator including the step 3 and the fourth step of drying the coating part obtained in the third step.

In addition, as another method of the present invention, the third step and the fourth step are performed after the above-mentioned first step, and the second step is the final step to obtain a similar applicator. It will be a means of achievement.

[Work]

The cosmetic applicator of the present invention comprises a bundle of cellulose acetate fibers. A bundle of cellulose acetate fibers is well known for applications such as cigarette filters.

As a manufacturing method thereof, a method in which a tow made of cellulose acetate fibers is opened, a plasticizer is added, and then the fibers are bundled is generally used. For the purpose of a filter that requires air permeability and elasticity, all the crimped fibers form a bundle.

The inventor first focused on this focusing body, sharpened one end of the focusing body to form a coating section, and then tested the function as a coating tool.

However, although good results such as softness and elasticity at the time of application or touch to the skin were obtained, it was found that cosmetics such as lipsticks, blushers and eye shadows do not adhere to the intended area over all cosmetics. There was a fatal problem with the applicator.

That is, when the cosmetic was taken from the container with this applicator and applied to the skin, the phenomenon that the cosmetic penetrated between the fibers and did not adhere to the skin occurred.

Therefore, as a countermeasure against this, a method of impregnating the application part with a synthetic resin liquid to eliminate the gap between the fibers has been tried, but the application part becomes stiff and causes another problem as an applicator.

As another method, without making the cellulose acetate fiber into a crimp shape, it was a straight one from the beginning and it was used as a bundling body and as an applicator, the cosmetic did not migrate to the inside of the applicator and the adhesion of the cosmetic to the skin was good. However, there is a problem that the applicator lacks flexibility and elasticity.

As for the amount of fibers used, for example, when a bundle of 6.5 mm diameter is obtained by using crimp-like fibers having a single yarn thickness of 1 to 2 denier and 3 to 10 fibers / cm, the required number is about In contrast to 40,000 fibers, when making linear fibers of the same diameter, about 130,000 fibers were required, which was a drawback in terms of cost.

Therefore, while maintaining the flexibility and elasticity as an applicator,
As a result of repeated studies to make an applicator in which cosmetics do not migrate between fibers during application, one end of the bundle of crimped fibers is shaved to form a sharpened application part, and then a treatment liquid containing water is applied to the application part. It has been found that when applied to, the crimped fibers become straight and when dried and tested for coating function they are a very good coating destination.

This is because the fiber gap is small in the part of the application part where the linear fiber bundle is formed, the internal transfer of the cosmetic is prevented, and the adhesion of the cosmetic to the skin is improved.

With regard to flexibility and elasticity, since the other portions were bundled as crimped fibers, there was no problem in terms of usability, and the applicator had an excellent application function.

In the production of such an applicator, the rod body as the fiber bundle is the starting material, and the rod body is easy to roll and has no orientation, so the arrangement on the belt conveyor or the arrangement on the support base is not possible. It is extremely easy to perform and allows continuous and rational production, and therefore the applicator cost is low.

〔Example〕

 Hereinafter, description will be made based on embodiments.

FIG. 1 is a sectional view of the applicator of the present invention,
FIG. 2 is a cross-sectional view of a coated applicator obtained from the present invention.

3 (A) to (C) are cross-sectional views of the applicator for explaining the manufacturing process of the applicator of the present invention.

4 (A) to 4 (C) are sectional views for explaining another manufacturing process of the applicator of the present invention.

1 and 2 show an applicator obtained from the present invention. FIG. 1 shows the applicator having a body 2 for application, and FIG. 2 gives the body 2 a high-class feeling. It is formed as an applicator in which a simple handle 5, a paper cylinder, a synthetic resin pipe, and the like are installed.

The applicator of the present invention is made of a cellulose acetate fiber bundle, but as a general manufacturing method, tows made of cellulose acetate fibers are opened, and as a plasticizer, triacetin, polyethylene glycol diacetate. , Dipropionate or diptylate ester, dimethoxyethyl phthalate, citric acid, triethyl ether, 1.3 butylene glycol diacetate and the like are used.

These plasticizers partially dissolve the cellulose acetate fibers when they come into contact with the fibers and randomly bond the dissolved fibers to each other to retain the shape of the bundle and at the same time provide the appropriate hardness. It is used for the purpose.

The fibers to be bundled can be crimped freely, but preferably 5 fibers per length of 25 mm.
The one with 30 uniform crimps is good in terms of flexibility and elasticity as an applicator.

As a method of adding the plasticizer, a method using a spray gun or a method using a wick is applied to both upper and lower surfaces of the fiber tow. When the amount of the plasticizer is extremely large, the cellulose acetate is dissolved and becomes dove-like, so it is desirable to apply it uniformly. On the other hand, if the amount is too small, the fibers are easily frayed and the handle supporting portion is cracked during application, resulting in poor usability. Therefore, the amount of the plasticizer is preferably about 1 to 30% by weight based on the cellulose acetate fiber.

Further, the fineness of the fibers forming the bundled fiber may be selected according to the intended cosmetics, but if it is too thick, it may lead to lack of softness during use, so 1 to 30 denier is preferable. The degree is good.

In the applicator of the present invention composed of such a cellulose acetate fiber bundle, only the application part 1 is the linear fiber 3, and the other part of the linear fiber 1 remains as the crimped fiber 4. The body 2 is formed.

Therefore, since all the fibers of the application part 1 are the linear fibers 3, the cosmetic does not move into the fiber gap.

Further, since a part of the inside of the body portion 2 and the coating portion remains as crimp fibers, the flexibility and elasticity are maintained, so that the applicator has a good usability.

Next, FIG. 3 shows a method for manufacturing an applicator of the present invention (A)-
It is shown in FIG. A crimp-shaped fiber bundle formed into a rod shape and cut to a desired size (A) has one end sharpened by a cutting machine, and this portion is referred to as a coating portion 1. The sharp state can be formed into a desired shape depending on the type of cosmetics. At this time, since the surface of the application portion is crimped fibers, the fiber gap is large.
(B) is a sectional view of the state.

Then, this product is dipped only in the coating part in water, immediately pulled up, and then dried to form a linear fiber bundle 3 in the coating part 1 as shown in (C). The immersion time may be about 1 second to 10 seconds, and the subsequent drying conditions may be 60 ° C to 80 ° C for about 5 minutes to 15 minutes.

As a method of treating the aqueous solution for changing the crimped fiber portion into the linear fiber portion, a felt roll impregnated with water may be applied in addition to the dipping method described above. Further, the same effect can be obtained even if the particles are attached in a mist form with steam or a spray gun.

Also, regarding the water treatment liquid, in addition to the treatment of only water, an organic solvent such as acetone is added to the water or a thickener is added to form only linear fibers in the surface layer of the coating portion 1 to form a linear fiber. The inside (core part) is made of crimped fibers to further enhance the soft feel during use. The addition of an organic solvent such as acetone or alcohol, which is compatible with water, slows the time for the crimped fibers to change to straight fibers (because the concentration of water becomes low). It is an extremely effective means for managing the degree of processing.

Also, when a water-soluble thickener is added, it becomes difficult for water to permeate into the fibers, so that the depth of the layer that changes into linear fibers can be easily controlled. Therefore, it becomes easy to control the manufacturing process like the organic solvent.

The thickener may be any one that is water-soluble and has a thickening effect, such as carboxymethyl cellulose, polyvinyl alcohol, starch, hydroxylpropyl cellulose, and a hydrogel agent of an acrylic derivative.

Taking one example based on the above matters, the formulation of the treatment liquid is as follows: water 80% acetone 19.5% hydroxypropylcellulose 0.5% After preparing the treatment liquid, the coating part is immersed for 2 seconds, then at 80 ° C. After drying for 5 minutes, an applicator having an excellent coating function and usability was obtained. The amount of the organic solvent compatible with water to be blended is preferably about 5 to 50% for process control. If the added amount is large, the same quality can be obtained, but the immersion time becomes longer and the productivity tends to be deteriorated.

Regarding the thickener, the viscosity of the treatment liquid itself should be controlled at about 100 CPS to 500 CPS. In the case of high viscosity, only a very shallow part of the surface of the applied part can be formed into linear fibers, which leads to internal migration of the cosmetic.

Next, the applicator of the present invention basically comprises sharpening one end of the cellulose acetate fiber bundle to form an application part, and then subjecting the crimp-shaped fiber part to a linear fiber exchange treatment with a treatment liquid containing water. However, as another method, one end of the fiber bundle is previously treated with water to form a linear coating, and the dried coating is cut to form a sharpened coating portion, which is exactly the same cosmetic solution coating. You can also get ingredients.

It becomes the state diagram of (A)-(C) shown in FIG. 4, and (B)
Is a cross-sectional view after treatment with a treatment liquid containing water, (C) is a cross-sectional view of the applicator after the final step sharp cutting treatment, and the same applicator as the applicator obtained by the previous method is obtained. .

〔The invention's effect〕

The applicator of the present invention, after cutting the cellulose acetate fiber bundle in the desired size of the applicator, only the extremely simple steps of applying or dipping the cutting liquid, and drying, continuous production, It is possible.

Further, since the applicator of the present invention can be processed as a rod-like object from the start of manufacturing to the final step, the applicator can be molded at a significantly high speed. Moreover, the present invention can form an applicator using only a single material, and since it imparts a high-class feeling, it is a very simple specification even if a pipe-shaped handle made of paper or synthetic resin is attached. Therefore, it becomes economical.

Furthermore, by only partially converting the crimp-shaped fibers into linear fibers with a fiber bundle as a single material, it is possible to provide a coating function according to the desired usability or cosmetics.

For the above reasons, the present invention can provide a highly functional cosmetic applicator at a very low cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of the applicator of the present invention, FIG. 2 is a cross-sectional view of the applicator with a handle obtained from the present invention, and FIGS. 3 (A) to (C) are manufacturing steps of the applicator of the present invention. 4A to 4C are sectional views for explaining another manufacturing process of the applicator of the present invention. 1 ... coating part, 2 ... body part, 3 ... linear fiber, 4 ... crimp fiber, 5 ... handle.

Claims (3)

[Claims] 1. A makeup applicator comprising a cellulose acetate fiber bundle, wherein the application part is formed as linear fibers and the other part is formed as crimp fibers. 2. A first step in which crimp-like fibers of cellulose acetate are bundled, processed into a rod, and then cut into an appropriate size, and one end of the rod obtained in the first step is sharpened. A second step of cutting to form a coated portion, and a crimp-shaped fiber to be a linear fiber by coating or dipping the coating portion obtained in the second step with a treatment liquid containing water. A method for manufacturing a cosmetic applicator, which comprises the step 3 and a fourth step of drying the application part obtained in the third step. 3. A first step in which crimp-like fibers of cellulose acetate are bundled, processed into a rod, and then cut into an appropriate size, and water is applied only to one end of the rod obtained in the first step. A second step of applying or dipping a treatment liquid containing the crimped fibers into linear fibers; and a third step of drying the linear fiber portion of the rod obtained in the second step. And a fourth step of cutting the linear fiber portion of the rod obtained in the third step into a sharpened shape to form an application portion.