JPS597444B2 - Cosmetic puff manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for manufacturing a cosmetic puff, particularly a cosmetic puff as an applicator for applying powdered cosmetic stings.

[Prior art]

BACKGROUND ART Conventionally, as an applicator for powdered cosmetics, a woven cloth having long piles, a sheet made of a foamed material, and the like have been frequently used as an application base material.

A core body is inserted inside these coated base materials.

This core is used to enhance the elasticity of the applicator when it is used and to prevent the applicator from buckling, and its materials include synthetic resin foam, rubber foam, non-woven fabric, etc. A block-shaped porous material consisting of

These conventional puffs are usually manufactured as follows.

That is, first, the application base material, napped woven fabric or flocked sheet, is punched out into the desired shape, and the two punched sheets are cut out so that the napped or flocked sides, which will be the application surfaces, are on the inside (i.e., the middle surface is ), and the peripheral edges are sewn using a sewing machine to form a bag shape.

At this time, the peripheral area. A part of it is left unsewn,
This is an opening for turning over the coated base material.

Place the core on the coated base material, let the coated base material sewn into a bag shape pass through the opening together with the core, and turn it over.
Turn the coated side up.

Alternatively, as described in Japanese Patent Publication No. 41-42533 as a conventional example, after the coated base material is turned over, the core body is inserted into the inside of the bag-shaped coated base material from the opening of the coated base material. .

Then, finish by sewing the unsewn parts (mouth closing process).

Because it is manufactured in this way, in conventional puffs of this type, there is no joint between the coating base material and the core, the core is not fixed to the coating base material, and the coating base material is not fixed to the coating base material. It is simply wrapped in wood.

A problem with such puffs is that during use, the core inside the puff may move and become biased to one side of the puff.

If the core is uneven, the puff may feel uneven when applying the cosmetic, resulting in a poor usability.

In particular, after the puff has been washed, the center core becomes noticeably uneven, making the puff uncomfortable to use, and in some cases, the puff becomes completely unusable due to the center core being uneven.

The present inventor solved the above-mentioned problems of the conventionally known puffs, namely:
In order to solve the problem of the movement of the core, the following attempt was made in an unknown manner.

First of all, in order to bond and fix the coated base material and the core body, before inserting the core body into the coated base material, a liquid adhesive is used to fix the coated base material and the core body. I tried to.

In this case, both the coating base material and the core are porous,
The adhesive penetrated into the inside of both, making it impossible to obtain a thick film and failing to achieve good bonding and fixation.

I tried increasing the amount of adhesive, but the adhesive seeped out to the surface of the applied part of the base material and partially solidified.
Its performance as an applicator has deteriorated.

As described above, it has been found that it is difficult to bond porous materials together using ordinary liquid adhesives.

Next, the present inventor adhesively fixed the core to a bag-shaped coating base material in which the peripheral edges of two coated base materials were sewn together with a part of the coated base materials overlapped. I tried using a pressure-tack type adhesive.

In this case, the pressure-sensitive adhesive type adhesive did not cause any oozing phenomenon, unlike liquid adhesives.

However, since the coated surface is the front side, when the bag-shaped coated base material is passed through the opening and turned over, the core fixed with the adhesive may peel off when it passes through the opening. Or, at that time, the pressure-sensitive adhesive coated surfaces of the core may adhere to each other, causing the core to become dango-shaped.
I wasn't feeling well.

[Purpose of the invention]

The present invention has been made in view of these backgrounds, and the purpose of the present invention is to solve the problems of conventional puffs of this type. To provide a method for producing a cosmetic puff that can always maintain good usage conditions over a long period of time without changing its position, and that does not cause changes in the core even after the puff is washed. There is a particular thing.

[Structure of the invention]

The present invention involves stacking two coated base materials with their coated surfaces in contact with each other in a middle-side state, joining them together leaving a part of the periphery to form a bag shape, and stacking the coated base materials so that the coated surfaces are on the front side. Turn over the bag-shaped coated base material, wrap the porous core inside the bag-shaped coated base, insert the adhesive application member through the unjoined opening of the bag-shaped coated base, and apply the adhesive to the surface of the core. The above-mentioned object is achieved by a method of manufacturing a cosmetic puff in which adhesive is applied to the cosmetic puff using an adhesive applicator, the adhesive applicator is pulled out, and the opening is closed.

[Explanation of Examples]

The present invention will be explained in detail below based on Examples.

In the present invention, a woven fabric, a knitted fabric, a foam made of various synthetic resins, a rubber foam, a sheet whose surface is treated with flocking of the foam, etc. are used as the coating base material.

For the core, porous and elastic materials such as various foams (foamed urethane, foamed polyethylene, foamed rubber, etc.) or fiber laminates such as nonwoven fabrics and woven fabrics are punched into appropriate dimensions and shapes. Use what you have.

The method of inserting the porous core into the coating matrix is the same as in conventional processes.

That is, two coated base materials punched into a desired shape are stacked one on top of the other so that the coated surfaces are facing each other, and are joined by sewing or fusion, leaving a portion of the periphery.

At this time, the remaining unsewn part becomes the opening.

Next, the core is placed on top of the coated base material and passed through the opening along with the coated base material, and the coated base material is turned over.

In this way, the core is encapsulated within the coated matrix.

Next, a rod or spatula-shaped adhesive application member is inserted through the opening of the coating base material finished in this manner.

The adhesive application member is preferably a hollow member from which a certain amount of adhesive oozes out onto the surface of the application member from a cavity inside the application member.

This is preferable because it prevents the coating base material from being contaminated and over-applying the adhesive even when the coating member is inserted into the coating base material.

Moreover, a type of applicator member in which the interior of the applicator member has two cylinders connected to the adhesive supply source and can be joined at the tip is particularly advantageous when the adhesive is a two-component curing type.

Regarding the adhesive used in the present invention, a low-viscosity adhesive such as a solvent-diluted type is not preferable because it will change the texture of the coated base material if it is absorbed into the coated base material and the core and solidified.

Therefore, an adhesive having an appropriate viscosity is selected in consideration of the degree of penetration into the coating base material and the core, and the curing speed.

As the adhesive, a two-component reaction curing adhesive with high viscosity is particularly suitable, and polyurethane-based, acrylic-based, epoxy-based, polyamide-based, etc. are particularly suitable.

The adhesive application member inserted into the interior through the opening of the application base material is applied to the surface of the core body, and the adhesive that has come out of the application member from the internal cavity of the adhesive application member is removed. Apply to the surface of the core.

Thereafter, the adhesive application member is pulled out from the opening of the application base material, and the application base material is immediately pressed from the front side to adhesively fix the application base material and the core body.

Next, close the opening in the same way as before to create a cosmetic puff.

〔Effect of the invention〕

As described above, according to the present invention, until the core is inserted into the coated base material, the coated base material and the core remain in a free state in which they are not bonded to each other, as in the conventional method, and Flip the base material over and wrap the core inside the coated base material.
After correcting the core so that it is located in the center of the coated base material, that is, after adjusting the puff shape, insert the adhesive application member through the opening of the coated base material, and then insert the adhesive application member into the core body and the coated base material. This is to join and fix the two.

Therefore, according to the method of the present invention, the coating base material and the core can be easily bonded together, and the adhesive can be uniformly applied by the adhesive coating member.

Furthermore, according to the method of the present invention, since an adhesive with a relatively high viscosity is used, the adhesive does not penetrate into the coating base material or the core, making it possible to obtain puffs of stable and good quality. can.

The puff obtained by the method of the present invention has a good shape because the coated base material and the core are bonded and fixed after adjusting the puff shape, and the puff does not lose its shape even when washed. do not have.

Claims (1)

[Claims] 1 Lay the two coated base materials with their coated surfaces in contact with each other with their sides facing each other and join them to form a bag, leaving a part of the periphery, and apply the bag-like coating so that the coated surfaces are on the front side. The base material is turned over, the porous core is wrapped in the bag-shaped coated base material, an adhesive application member is inserted through the unjoined opening of the bag-shaped coated base material, and the adhesive is applied to the surface of the core body. A method for manufacturing a cosmetic puff, which comprises applying an adhesive using an applicator, pulling out the adhesive applicator, and closing the opening.