JPS643722B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides an enclosure bag with an opening/closing lid as a simple container for cosmetics, medicines, etc., especially sheet-like fiber materials impregnated with liquid or coated with powder. It is related to the production of.

[Conventional technology]

BACKGROUND ART In recent years, disposable wet napkin-like products in which sheet-like fiber materials are impregnated with cosmetics, drugs, etc. have come into widespread use. Cosmetics are used for a wide variety of purposes, such as wiping off dirt, and medicines are used for disinfection, etc., and there are also a wide variety of containers for storing them.

A bag-like simple enclosure with an opening/closing lid has already been proposed as a container for wet napkins.

As a conventionally known enclosure bag with an opening/closing lid, it was developed in 1973.
-There is one disclosed in Publication No. 47018. According to the above publication, an inner lid portion is formed on one side of the bag body,
Drill an opening in the inner lid, stack the outer lid on top of the inner lid, and apply pressure-sensitive adhesive only to the periphery of the outer lid or the part of the inner lid that corresponds to the periphery. , so that it can be opened and closed repeatedly.

[Problem that the invention seeks to solve]

However, applying the adhesive partially along the periphery of the lid part is not practical because, together with the fixing conditions of the lid part, it is extremely difficult to control dimensional accuracy and increases costs.

In the enclosure bag structured as described above, instead of applying adhesive partially along the periphery of the lid,
If pressure-sensitive adhesive is applied to the entire surface of the outer lid, the contents inside the lid will come into direct contact with the pressure-sensitive adhesive on the lid because the opening is open, resulting in adhesive failure. Problems arise, such as the adhesive adhering to the contents, and the odor of the adhesive transferring to the contents, resulting in deterioration and odor of the contents.

In addition, for bag-shaped products with opening/closing lid materials, consumers are expected to confirm that the product is being used for the first time at the point of sale, in other words, that the product is not a used product. A structure without such structure was desired.

[Purpose of the invention]

The purpose of the present invention is to solve the above-mentioned problems, and to provide a continuous manufacturing method for an enclosure bag that can be opened and closed repeatedly so that the adhesive on the opening/closing lid does not affect the contents. .

[Means for solving problems]

The present invention has achieved the above objects as follows.

According to the present invention, there is a step of making a separation cut in an airtight continuous sheet to form a take-out opening for the encapsulating bag, and an adhesive is applied to one end of the sheet and the cut is wider than at least a portion that will become the take-out opening. Open/close lid with pressure-sensitive adhesive applied to the area.
A step of attaching the pressure-sensitive adhesive to the sheet so as to cover the portion of the sheet that will serve as the take-out opening, and a step of attaching the pressure-sensitive adhesive to the sheet opposite to the side to which the opening/closing lid is attached, a step of placing a sheet-like fibrous material over a location that will serve as a take-out port; a step of wrapping the sheet-like fibrous material with the sheet and fixing the longitudinal opening and the lateral opening of the sheet;
The conventional problems have been solved and the above-mentioned objects have been achieved by a continuous manufacturing method for cosmetic packaging bags, which is characterized by a step of cutting the sheet in the transverse direction.

〔Example〕

Examples will be described below. As shown in the drawing, an airtight sheet material 1 is provided with closed-loop perforations in the shape of a circle, thin rectangle, ellipse, diamond, square, etc. at a location that will become the outlet 2 for the inclusion body using a press blade 1. Make 3 cuts. Alternatively, make partial perforations that are not closed loops. Sheet materials include polyethylene, polypropylene,
Suitable materials include single or composite materials of synthetic resin films such as polyester, polyamide, vinyl chloride, vinylidene chloride, cellophane, and acetate, or composite materials of these and aluminum foil.

On the other hand, the opening/closing lid 5 is made of a film made of the same material as the sheet material or a similar material, and has an appropriate shape such as a circle, an ellipse, a thin rectangle, a rhombus, or a square shape depending on the shape of the outlet 2 of the inclusion body. be. A pressure-sensitive adhesive made of acrylic acid ester or rubber is applied to one side of the opening/closing lid 5 at least in an area wider than the outlet 2 to form an adhesive layer.
Further, adhesive is also applied to one end 4 of the opening/closing lid 5. The opening/closing lid 5 is attached to the sheet using a suitable known labeling machine or by hand so that the part of the opening/closing lid 5 coated with the pressure-sensitive adhesive covers the cut portion 3 of the sheet obtained in the above step. . In this way, one end 4 of the opening/closing lid is fixed with the adhesive.

A sheet-like fibrous material (wet napkin, etc.) 14 made of the sheet 1 obtained in the above step, made of synthetic or natural fibers such as paper, woven fabric, non-woven fabric, cotton, gauze, foamed sheet, etc., impregnated or coated with cosmetics, drugs, etc. put In this case, the sheet-like fibrous material is placed on the surface of the sheet 1 opposite to the surface to which the opening/closing lid 5 is attached, on the location 2 that will serve as the outlet. That is, the sheet-like fiber material 14 is placed so that the open/close lid 5 is exposed in the finished product.

Next, the bag is made into a pillow type bag using a regular bag making machine. For example, the sheet 1 is guided by the guide member 15, and the sheet-like fiber material is wrapped with the sheet 1. Then, by fixing both side edges of the sheet 1 to each other with a heat sealer 16, the opening in the longitudinal direction of the sheet is sealed, and the center seal part 6 is sealed.
, and seal the lateral openings with heat sealer 1.
7 to form an end seal portion 7. Next, the sheet is cut to a fixed size using a hot blade 18, and made into a single bag.
Product 19 is obtained.

〔Effect of the invention〕

According to the method of the present invention, it is possible to continuously produce a cosmetic enclosing bag suitable for carrying, which encloses a sheet-like fiber material in a wet state, and the manufacturing cost can be reduced, which is very economical.

According to the present invention, the outlet of the enclosure bag is not formed as an opening during manufacture, but is provided as a separation cut 3 for forming the opening. Therefore, when a consumer uses the enclosure bag for the first time, a part of the enclosure bag is torn from the notch when the consumer opens the lid. has a sealing function during initial use.

In addition, since the opening/closing lid 5 on which the pressure sensitive adhesive layer is formed is pasted onto the separation notch 3, a part of the sheet 1 (separated portion) separated from the notch 3 is exposed to the opening/closing lid 5. It is attached to the pressure adhesive and returns to its original position when the opening/closing lid 5 is closed, tightly sealing the outlet. Therefore, even when the opening/closing lid 5 is closed, the pressure-sensitive adhesive will not adversely affect the contents. Further, since the take-out port is blocked by both the part of the separated sheet and the opening/closing lid,
Very good sealing performance. Therefore, the liquid impregnated in the sheet-like fiber material will not evaporate even if the lid is opened and closed repeatedly or the lid is left closed for a long time after being used once.

In addition, the cut is not a closed loop cut,
In the case of a partial perforation-like notch, the cut-off part is connected to the main body of the enclosing bag, so it has the effect of acting as an inner lid, and its uses are further widened. In addition, since the tear-off part is connected to the main body of the enclosure bag, when the open-close lid is closed, the tear-off part will naturally return to its original position and open the removal opening without having to fix one end of the open-close lid attached to it. block

[Brief explanation of drawings]

The drawing is a perspective view showing the manufacturing process of the enclosure bag. DESCRIPTION OF SYMBOLS 1... Sheet, 2... Take-out opening part, 3... Notch part, 4... Fixed end of opening/closing lid, 5... Opening/closing lid.

Claims (1)

[Claims] 1. A step of making a separation cut in an airtight continuous sheet to form a take-out port for the encapsulation bag, and applying pressure-sensitive adhesive to one end of the sheet and applying pressure-sensitive adhesive to at least a wider area than the take-out port. a step of attaching an opening/closing lid coated with a pressure-sensitive adhesive to the sheet such that the part coated with the pressure-sensitive adhesive covers a portion of the sheet that will serve as the ejection opening; and pasting the opening/closing lid of the sheet. a step of placing a sheet-like fibrous material on a portion that will become an outlet on the opposite side to the side where the sheet-like fibrous material is taken out; and wrapping the sheet-like fibrous material with the sheet to open a longitudinal opening and a lateral opening of the sheet. 1. A method for continuously manufacturing a cosmetic enclosing bag, comprising a step of fixing the sheet and a step of cutting the sheet in the transverse direction.