JP2023091947A - Cosmetic puff and production method of the same - Google Patents

Abstract

To provide a cosmetic puff preventing a pile from coming off from the peripheral edge part of the cosmetic puff, and to provide a production method of the cosmetic puff, capable of smoothly performing a processing step without causing re-melting of an adhesive.SOLUTION: A cosmetic puff A which has a two-layer structure comprising a front layer part 10 and a rear layer part 20 is such that: the front layer part 10 is composed of a single side pile fabric having a cut pile 11 to be a cosmetic application part at a front side; a rear surface in which the cut pile 11 of the single side pile fabric is not formed, and the one surface of the rear layer part 20 are bonded by a responsible hot-melt adhesive (adhesive layer 31); and a round corner 33 is formed in the circumference of the rear layer part 20 bonded by melting.SELECTED DRAWING: Figure 16

Description

TECHNICAL FIELD The present invention relates to a cosmetic puff and a method for producing the same, and more particularly to a cosmetic puff from which pile yarn does not come off and a method for producing the same.

Conventionally, as shown in Patent Document 1, as materials for cosmetic puffs, pile fabrics composed of cut pile using heat-fusible fibers, such as nylon, polyester, and acrylic, and heat-fusible flat pile fabrics A cushioning material such as nonwoven fabric or polyurethane sponge is used, and the front and back are made of pile fabric, or one side is made of pile fabric and the other side is made of synthetic leather, and polyurethane sponge is contained inside, and the pile fabric and polyurethane sponge are formed. A three-layer structure in which the entire surface is bonded with an adhesive, such as a rubber-based soft adhesive that does not lose its flexibility even after curing, cut into a predetermined shape, and heat-sealed at the periphery with a high-frequency welder or an ultrasonic welder. The above cosmetic puffs are known.

JP-A-4-51908

However, when heat-sealed by a welder, the adhesive is melted, and the pile yarns are not fixed by the adhesive. As a result, when the pile yarn is pulled out during use of the cosmetic puff, the problem arises that the pile yarn is applied to the skin together with the cosmetic. In addition, the adhesive is melted by the heat of the welder, and the melted adhesive adheres to the pressure mold in the welder and the cutting edge of the mold in the case of fusing. The work may interfere with the welding process.

It is an object of the present invention to provide a cosmetic puff in which pile threads do not slip out from the periphery of the cosmetic puff, and a method for producing a cosmetic puff in which a cutting process can be smoothly performed without remelting of the adhesive.

The cosmetic puff according to the present invention is a cosmetic puff having a laminated structure comprising a surface layer portion and a back layer portion, wherein the surface layer portion is composed of a single-sided pile fabric having a cut pile on the surface side to serve as a cosmetic application portion. , the back surface of the single-sided pile fabric on which the cut pile is not formed and one surface of the back layer portion are bonded together by a reactive hot-melt adhesive, and the peripheral edge of the bonded back layer portion is cut by fusing; characterized in that rounded corners are formed in the

A method for producing a cosmetic puff according to the present invention is a method for producing a cosmetic puff having a laminated structure including a surface layer portion and a back layer portion, and the surface layer portion has a cut pile on the surface side, which serves as a cosmetic application portion. A single-sided pile fabric is used, a reactive hot-melt adhesive is applied to one side of the back layer portion, and the back side of the single-sided pile fabric on which cut pile is not formed is attached to the coated surface to form a cosmetic puff raw material. and a cutting step of cutting the cosmetic puff material into a predetermined shape from the surface layer side.

In the above manufacturing method, the cutting step uses a heatable pedestal with a flat work surface facing upward and a heatable cutting blade that moves up and down with respect to the work surface of the pedestal. Then, the cosmetic puff raw fabric is placed on the work surface of the pedestal with the surface layer side facing upward, and a back layer portion composed of a meltable synthetic resin sheet and a cut pile on the surface are formed. The heated cutting edge is directed toward the heated pedestal between the cosmetic puff side, which is the product, and the cutting side, which excludes the surface layer portion composed of a synthetic resin sheet that can melt the cloth from the cosmetic puff raw fabric. The cosmetic puff may be manufactured by cutting and removing the cut side from the cosmetic puff raw fabric while melting it by lowering it.

As the meltable synthetic resin that constitutes the base fabric, polyester is preferable. Further, the meltable synthetic resin constituting the back layer portion is preferably polyurethane made of polyurethane foam, and the back layer portion is preferably composed of a flat polyurethane sheet. Furthermore, a polyurethane sheet made of wet polyurethane foam is used as the back layer, and an intermediate layer made of a flat polyurethane sheet made of dry polyurethane foam is interposed between the back layer and the surface layer to form a laminate of three or more layers. It can be structured. Each layer is attached with a reactive hot-melt adhesive.

The cosmetic puff according to the present invention is configured as described above, and since the reactive hot-melt adhesive does not remelt even when heated, the pile yarns are kept fixed, so there is no risk of the pile yarns falling out.

In addition, since the method for manufacturing a cosmetic puff according to the present invention employs the above-described method, a reactive hot-melt adhesive is used in the bonding step to adhere and fix the single-sided pile fabric, which is the surface layer, and the back layer. As a result, the reactive hot-melt adhesive does not melt during fusing in the subsequent cutting step, so that the pile yarns are maintained adhesively fixed by the reactive hot-melt adhesive at the cut periphery. In addition, since the reactive hot-melt adhesive does not use an organic solvent, no harmful gas is generated due to the evaporation of the organic solvent in the bonding process, so that a good working environment can be maintained. Furthermore, since the reactive hot-melt adhesive does not melt during fusion cutting, the adhesive does not adhere to the cutting edge during fusion cutting, and fusion cutting can be performed smoothly.

1 is a perspective view of a cosmetic puff taken from the surface side according to an example of the present invention; FIG. 1 is a perspective view of a cosmetic puff according to an embodiment of the present invention; FIG. It is an exploded perspective view of the cosmetic puff shown in FIG. 2, FIG. 3 (a) shows a surface layer part, FIG.3(b) shows a back layer part. FIG. 2 is a partially enlarged perspective view of FIG. 1; 1 is a partially enlarged perspective view of a cosmetic puff according to an example of the present invention, photographed obliquely from above on the surface side. FIG. 1 is a perspective view of a cosmetic puff taken from the back side according to an example of the present invention; FIG. FIG. 7 is a partially enlarged perspective view of FIG. 6; 1 is a partially enlarged perspective view of a cosmetic puff according to an example of the present invention taken from the side; FIG. Fig. 2 is a partially enlarged perspective view of the cosmetic puff according to the example of the present invention, taken obliquely from below on the back side; Fig. 10 is a perspective view of the cosmetic puff of Modified Example 1 in which the shape of the cosmetic puff according to the example of the present invention is changed, taken from the surface side. FIG. 10 is a perspective view of a cosmetic puff of Modified Example 2 in which the form of the example of the present invention is changed, taken from the back side. FIG. 2 is a perspective view of a surface layer portion that constitutes a cosmetic puff raw fabric for manufacturing a cosmetic puff according to an example of the present invention. FIG. 2 is a perspective view of a backing layer portion that constitutes a raw cosmetic puff fabric for producing a cosmetic puff according to an example of the present invention. Fig. 14(a) is a partially omitted enlarged side view showing the state before bonding the surface layer portion and the back layer portion of the cosmetic puff raw fabric, and Fig. 14(a) is the surface layer portion and Fig. 14(b) is the back layer portion; is. Fig. 3 is an enlarged side view with partial omission showing a state in which the surface layer portion and the back layer portion of the original cosmetic puff are adhered; Fig. 2 is an enlarged side view of a peripheral portion of a cosmetic puff cut out from a raw cosmetic puff fabric, with some parts omitted; FIG. 4 is a schematic explanatory view with a partially enlarged view showing a cutting step of cutting out a cosmetic puff from a cosmetic puff raw fabric.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

A shown in FIGS. 1 and 2 is a circular cosmetic puff in this embodiment, and the cosmetic puff A has a two-layer structure in which a surface layer 10 and a back layer 20 shown in FIG. 3 are bonded together. It is. 3(a) shows the surface layer 10, and FIG. 3(b) shows the back layer 20. As shown in FIG. In addition, the structure is not limited to the two-layer structure, and depending on the situation, a laminated structure of three or more layers in which another layer is laminated between the surface layer portion and the back layer portion may be used.

As shown in FIGS. 4 and 5, the surface layer portion 10 is composed of a single-sided pile fabric having a cut pile 11 on the surface side, which serves as a cosmetic application portion.

As shown in FIGS. 6 and 7, the backing layer 20 is composed of a flat polyurethane sheet made of polyurethane foam, preferably a polyurethane sheet made of wet polyurethane foam.

The surface layer portion 10 and the back layer portion 20 are attached to one surface of the back layer portion 20 with a reactive hot-melt adhesive by means of a reactive hot-melt adhesive. They are combined to form a two-layer structure as shown in FIGS. The surface layer portion 10 and the back layer portion 20 that are bonded together are fused into a circular shape to complete the cosmetic puff A.

Since the cosmetic puff A according to the present embodiment has the above structure, the reactive hot-melt adhesive does not re-melt even when heated, so that the pile yarns are kept fixed, so there is no possibility that the pile yarns will come off. .

Fig. 10 shows Modified Example 1 of Cosmetic Puff A, and Cosmetic Puff B in this modified example is prepared by fusing the bonded surface layer portion 10 and back layer portion 20 into a rectangular shape with rounded corners. be. As described above, the cosmetic puff in Example 1 can have various shapes.

FIG. 11 shows Modified Example 2 of the cosmetic puff A, and the cosmetic puff C in this modified example has a finger loop band 21 attached to the back side of the back layer portion 20 where the surface layer portion 10 is not bonded. This is a modified example in which the operability of the makeup puff A is improved.

In addition, in order to reduce the material cost, the thickness of the back layer of the polyurethane sheet made of expensive wet-process polyurethane foam, which is smooth to the touch and pleasant to the touch, is reduced, and an inexpensive An intermediate layer of flat polyurethane sheet made of dry polyurethane foam may be interposed. Of course, in this case as well, the back surface of the single-sided pile fabric on which the cut pile is not formed and one surface of the intermediate layer, and the other surface of the intermediate layer and one surface of the back layer portion are each reactive. Bonded by hot-melt adhesive.

Next, a method for manufacturing a circular makeup puff A having a two-layer structure consisting of the surface layer 10 and the back layer 20 will be described in detail.

First, a rectangular surface layer portion 10 shown in FIGS. 12 and 14(a) is prepared. The surface layer part 10 is composed of a single-sided pile fabric having a cut pile 11 serving as a cosmetic application part on the surface side.

The single-sided pile fabric is a so-called velvet fabric. Two pile fabrics in which a cut pile 11 of the pile yarn is formed on the base cloth 12 are prepared by suspending the pile yarn and cutting the suspended pile yarn in the middle. In addition, the single-sided pile fabric is not limited to the above-mentioned manufacturing method, and a pile fabric with a cut pile formed on one side is created by forming a loop pile on the base fabric and cutting the loop top of the loop pile. may be used, or other methods may be used.

Then, as shown in FIG. 14(a), the surface layer portion 10 is formed by forming a backing layer 13 by backing the back side of the base fabric 12 where the cut pile is not formed with an adhesive to form the cut pile 11. It is manufactured by bonding and fixing it to the base cloth 12 and subjecting the pile surface side to a fluffing treatment. The adhesive in this case also uses a reactive hot-melt adhesive.

The pile yarn that constitutes the cut pile 11 is a blended yarn of polyester fiber and nylon fiber at a blend ratio of 50%. The base fabric uses 100% polyester. The types of fibers used and the blend ratio are not limited to these. The overall composition of the pile fabric may be any one of polyester, nylon, and rayon, or a combination of a plurality of them, but is not limited to this.

Next, a rectangular back layer portion 20 shown in FIG. 13 is prepared. The backing layer 20 is preferably composed of a flat polyurethane sheet made of polyurethane foam. In this example, a flat polyurethane sheet made of wet polyurethane foam manufactured by Fushimi Pharmaceutical Co., Ltd. was used.

A flat polyurethane sheet made of dry polyurethane foam may be used as the polyurethane sheet. Common dry polyurethane foams are produced by using polyols with more than two functional groups, water as a blowing agent, and low-boiling compounds such as freon, dichloromethane, and hydrocarbons as auxiliary blowing agents. .

In the case of wet polyurethane foam, a polyurethane polymer is dissolved in dimethylformamide, and a pore-generating agent such as polyvinyl alcohol is added to the composition. of water to dissolve the pore-forming agent. The cell structure of the wet-laid polyurethane foam produced by this method has a coral-like structure in which the resin aggregates. A wet-process polyurethane foam having such a cell structure is smooth to the touch and pleasant to the touch.

Polyurethane sheets are produced by extruding a kneaded polyurethane-based raw material through an extruder into layers through a T-die and removing the solvent under appropriate temperature and pressure to produce block-shaped polyurethane foam with open cells. It is manufactured by slicing into a sheet with a predetermined thickness.

In order to reduce the material cost, the back layer is made of a laminate of a polyurethane sheet made of expensive wet-process polyurethane foam, which is smooth to the touch and has a good feel, and a flat polyurethane sheet made of inexpensive dry-process polyurethane foam. may

12 and 14(a) and the back layer 20 shown in FIGS. 13 and 14(b) are bonded to each other to manufacture a two-layer makeup puff material 30. about.

A reactive hot-melt adhesive is applied to one surface of the back layer portion 10 (the upper surface in FIGS. 13 and 14(b)), and the back surface on which the cut pile of the single-sided pile fabric is not formed on the coated surface ( 12 and 14 (a) are adhered together to form a cosmetic puff raw fabric 30 shown in FIG. Reference numeral 31 in FIG. 15 denotes an adhesive layer made of a reactive hot-melt adhesive.

As the reactive hot-melt adhesive, in this embodiment, a moisture-curable reactive hot-melt containing polyurethane as a main component is used. Reactive hot-melt adhesives have the advantage of not re-melting even when heated after the cross-linking reaction due to moisture is completed, and do not generate harmful substances during the bonding process if the temperature during bonding is adjusted and maintained. There are advantages.

Next, a cutting process for cutting the cosmetic puff material 30 manufactured as described above into a predetermined shape will be described.

The cosmetic puff material 30 is cut into a circular shape by fusion cutting from the surface layer portion 10 side to complete the cosmetic puff A shown in FIGS. A cosmetic puff having an appropriate shape can be obtained by cutting it into an appropriate shape, not limited to a circular shape.

Since the reactive hot-melt adhesive used for adhering the surface layer 10 and the back layer 20 does not re-melt during the fusion cutting, the adhesive does not adhere to the cutting edge used for the fusion cutting. , there is an advantage that the cutting process can be performed smoothly.

In the above cutting, as shown in FIG. 16, the shrinkage of the polyurethane sheet at the cut surface, that is, the base fabric side of the surface layer portion 10 hardly shrinks, and the polyurethane of the back layer portion 20 increases as the distance from the base fabric increases. By increasing the degree of contraction of the sheet, the cosmetic puff A having rounded corners 33 with bulges formed on the periphery of the back layer 20 is produced, so that the cosmetic puff A is soft and pleasant to the touch.

The cutting step is performed using a base D and a cutting blade E, as shown in FIG. Since this embodiment is an embodiment for manufacturing a circular cosmetic puff, the cutting edge E is cylindrical. Of course, the shape of the cutting edge is matched to the shape of the cosmetic puff to be manufactured. For example, when manufacturing a square cosmetic puff, a square cylindrical cutting edge is used.

The pedestal D is installed with the flat work surface D1 facing upward, and is configured so that the work surface D1 can be heated.

The cutting edge E is arranged to move up and down with respect to the work surface D1 of the pedestal D, so that the lower end E1 of the cutting edge E in contact with the work surface D1 can be heated.

Then, when the cutting edge E is in the upper position, the cosmetic puff material 30 is placed on the working surface D1 of the pedestal D with the surface layer 10 facing upward.

Next, as indicated by arrow a in FIG. As the lower end E1 descends, a cut pile 11 is formed on the surface, and the base fabric 12 made of a meltable synthetic resin sheet is melted and cut at the surface layer 10, and then the meltable synthetic resin sheet is made. When the back layer portion 20 is fused and the lower end portion E1 of the cutting edge E is pressed against the work surface D1 of the base D, the cosmetic puff A is cut from the cosmetic puff material 30. - 特許庁Polyurethane made of polyurethane foam is preferable as the meltable synthetic resin constituting the back layer portion 20, and the back layer portion 20 is preferably composed of a flat polyurethane sheet. Polyester is preferable as the meltable synthetic resin forming the base fabric 12 .

In FIG. 17, the laterally inner side sandwiched by the left and right lower ends E1 of the cutting edge E that is in contact with the cosmetic puff raw material 30 is the cosmetic puff side 30a that is the product, and the laterally outer side is from the cosmetic puff raw material 30. Excluded resection side 30b. That is, the heated cutting edge E is lowered between the cosmetic puff side 30a and the cutting side 30b, and the cutting side 30b is cut from the cosmetic puff raw fabric 30, thereby manufacturing the cosmetic puff A as a product. become.

Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, as well as the scope of the invention described in the claims and its equivalents.

A... Circular cosmetic puff 10... Surface layer part 11... Cut pile part 20... Back layer part 21... Finger loop band B... Rounded square shaped cosmetic puff C... ... Makeup puff provided with a finger loop band on the back surface 21 Finger loop band 12 Base fabric 13 Backing layer 30 Makeup puff raw fabric 31 Adhesive layer 32 Circle 33: Rounded corners D: Base D1: Machined surface of base E: Cutting edge E1: Lower edge of cutting edge 30a: Cut edge of cosmetic puff material Cosmetic puff side 30b: Cutting side when the cosmetic puff raw fabric is cut

Claims (3)

A cosmetic puff having a laminated structure comprising a surface layer and a back layer,
The surface layer portion is composed of a single-sided pile fabric having a cut pile on the surface side that serves as a cosmetic application portion,
The back surface of the single-sided pile fabric on which the cut pile is not formed and one surface of the back layer portion are bonded together with a reactive hot-melt adhesive,
A cosmetic puff characterized by having rounded corners formed on the peripheral edges of the bonded backing layers by fusion cutting. A method for manufacturing a cosmetic puff having a laminated structure comprising a surface layer portion and a back layer portion,
As the surface layer, using a single-sided pile fabric having a cut pile that will be the cosmetic application part on the surface side,
a bonding step of applying a reactive hot-melt adhesive to one surface of the back layer portion, and bonding the back surface of the single-sided pile fabric on which the cut pile is not formed to the coated surface to form a decorative puff raw fabric; ,
A method for producing a cosmetic puff, comprising: a cutting step of cutting the cosmetic puff material into a predetermined shape from the surface layer side. The cutting step uses a heatable pedestal with a flat work surface facing upward and a heatable cutting blade that moves up and down with respect to the work surface of the pedestal,
Place the cosmetic puff raw fabric on the work surface of the pedestal with the surface layer side facing upward,
A back layer composed of a meltable synthetic resin sheet and a surface layer composed of a cut pile formed on the surface and a meltable synthetic resin sheet as a base fabric are combined into a cosmetic puff side and a cosmetic puff as a product. A cosmetic puff is produced by cutting and removing the cut side from the raw puff while melting it by lowering the heated cutting edge toward the heated pedestal between the cut side to be excluded from the raw puff. A method for manufacturing a cosmetic puff according to claim 2.

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