JPH0551746U - Self-sealing envelope bag - Google Patents

Abstract

(57) [Abstract] [Purpose] Easy to handle because the surface of the adhesive of the sealing bag that has the adhesive seal part made of plastic film as the base material is covered with a self-sealing adhesive that is almost non-adhesive in a dry state. It is also a sticky bag with strong adhesion. [Structure] The edge of the bag is formed by heat sealing using a plastic film as a base material. The opposing seals of the openings are primed with an adhesive to enhance the bond strength at the adhesive interface with the plastic film. A self-sealing adhesive is applied to the surface of the undercoated adhesive. The surface of the self-sealing adhesive has almost no tack in a dry state, and is easy to handle. In use, the self-sealing adhesive will bond instantly when the seal parts are attached together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sealing bag having a plastic film as a base material and having an adhesive sealing portion for sealing.

[0002]

[Prior Art]

 Conventionally, a sealing bag in which an adhesive is applied to the sealing portion requires a back substrate (release paper) to protect the adhesive.

[0003]

[Problems to be solved by the device]

 The conventional sealing bag with adhesive in the sealing part has a problem in handling when the back substrate is peeled off and used, because the adhesive adheres to the object to be enclosed or the finger of the operating hand. have.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the sealing bag of the present invention has a structure in which a self-sealing adhesive is applied to the upper surface of the seal portion after the adhesive agent is undercoated on both surfaces facing each other.

[0005]

[Action]

 By using the sealing bag according to the present invention, since the surface of the adhesive of the seal part is the self-sealing type, there is almost no stickiness in the dry state, and it does not adhere to the object to be enclosed or the finger of the hand. . Also, after sealing after encapsulation, the adhesive force with the base material for the sealing bag is strengthened by the effect of the undercoat adhesive.

[0006]

【Example】

 Examples will be described with reference to the drawings. FIG. 1 is a perspective view of a self-sealing sealing bag according to the present invention, which is an enlarged view of an adhesive seal portion. The base material of the bag is a plastic film, and the edges of the bag are formed by heat sealing.

Adhesives 4 and 7 are primed on opposite sides of the opening of the bag. After drying, self-sealing adhesives 5 and 6 are applied on the upper surface.

When the self-sealing adhesives 5 and 6 are dried, the surfaces of the self-sealing adhesives 5 and 6 are hardly tacky in a dry state, and do not adhere to things.

When the sealing bag is sealed and the sealing portions having the openings facing each other are attached, the self-sealing adhesive is instantly bonded to complete the sealing.

The adhesion with the plastic film that is the base material of the bag is enhanced by the presence of the undercoating adhesives 4 and 7.

FIG. 2 shows an example in which the continuous sealing bag according to the present invention is wound into a cylindrical shape. The seal portion 10 of the bag is also rolled up into a cylindrical shape, but the surface of the seal portion is in a dry state, has almost no adhesive property, and does not stick to the back surface when unwound during use.

[0012] After encapsulating the rewound sealing bag in a sealed bag and adhering the opposing seal portions, the self-sealing adhesive is immediately bonded and sealed.

The sealed bag 9 which has been sealed can be separated at the position of the perforations 12.

[0014]

[Effect of the device]

 Since the present invention is configured as described above, it has the following effects.

At the adhesive interface with the plastic film that is the base material of the bag, the adhesive force is strengthened by the presence of the undercoating adhesive.

Since the surface of the sealing portion of the sealing bag is covered with a self-sealing adhesive, the sealing bag has almost no stickiness in a dry state and can be stacked or rolled into a cylindrical shape. No backside release agent treatment required.

When an object is sealed in a sealing bag, the surface of the seal part is dry and has almost no stickiness, so that it does not adhere to the object to be sealed or the fingers of the operating hand, so handling is smooth. it can.

After encapsulating the objects, if the seal parts are stuck together, the bonding is instantly completed and a strong adhesive force is obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a self-sealing bag, which is an enlarged view of an adhesive seal portion.

FIG. 2 is a perspective view of a continuous wrapping self-sealing sealing bag wound in a cylindrical shape.

[Explanation of symbols]

 1,9 Sealing bag 2,3 Plastic film substrate 4,7 Undercoat adhesive 5,6 Self-sealing adhesive 8 Continuation Self-sealing sealing bag 10 Self-sealing adhesive sealing part 11 Heat seal 12 Perforations

Claims (1)

[Scope of utility model registration request] 1. A sealing bag having an adhesive sealing part for sealing at the opening of a bag made of a plastic film as a base material, wherein an adhesive is undercoated on both surfaces of the sealing part, and a self-sealing type is provided on the upper surface thereof. Sealing bag with self-sealing, characterized by applying adhesive