JP6213863B2 - Pre-treatment device that relaxes heat sealing of container opening - Google Patents

Description

The present invention relates to a pretreatment device that applies a heat seal relaxation treatment to an opening of a heat seal closed container.

Containers used for mass production, such as opening with a tool in the opening after sealing by heat sealing, or opening by inducing tearing from the notch provided for opening, hold the container at the time of opening. There is a problem with opening operations such as squeezing the container and ejecting the package contents to contaminate the container and the opening site.

In general, the opening of a heat-sealed sealed container that does not use equipment is used to induce tearing by giving a notch to the container, but depending on the structure of the container, there is a shape that can not be provided. It is not an effective opening means for all heat seal containers.

Problems to be solved by the invention

Heat-sealed containers used for mass production are packaged by container pressing by holding the container, such as opening an opening after sealing with an instrument or opening by inducing tearing from a notch provided to the opening. The problem is that the contents are spouted to contaminate the opening site. In order to solve this problem, a sealing relaxation treatment is applied to the opening portion in advance to facilitate the opening after sealing, and no container or notch is required at the time of opening. In order to obtain a container that does not cause contamination, a pretreatment device that applies a seal relaxation treatment to the opening is required.

Means for solving the problem

As a means to solve the problem, particles having no heat-welding property are fixed in advance to the opening heat seal surface of the container material, and the particles are interposed in the heat seal layer of the opening to perform container sealing by heat sealing, and heat welding. sex free to relax the heat sealed intervening grain child opening is to use an opening pretreatment device of the container material to facilitate opening.

Effect of the invention

The non-heat-weldable particles to be fixed to the opening of the container material are selected so that the particle diameter is close to the thickness of the olefin-based resin layer for heat sealing that is pre-coated on the container material. Since the particles having no heat-weldability are fixed in advance and the heat-sealed sealing is performed by interposing the fixed particles, the particles having no heat-weldability facilitate opening. As for heat seal relaxation, desired heat seal relaxation can be achieved by selecting the particle size, the strength of the relaxation heat seal, and the like. With the container material opening pretreatment apparatus of the present invention, it is possible to provide a heat-sealed container that can be easily opened by applying the opening pretreatment.

In the heat seal cross section through the seal relaxation particles, In the summary of the present invention,

Reference numeral 10 denotes a base material for the container material.
11 is a resin coating.
Reference numeral 12 denotes a heat seal surface.
Reference numeral 13 denotes relaxation particles interposed on the seal surface.
21 is a container material.
Reference numeral 22 denotes a container material holding cooling roll.
Reference numeral 23 denotes a heating section burner.
Reference numeral 24 denotes a projection chamber.
Reference numeral 25 denotes a brush.
This is a 26 pressure constant cooling roll.
Reference numeral 27 denotes a carrier air heater.
Reference numeral 28 denotes a relaxed particle capturing / recovery supply device.
Reference numeral 29 denotes an optical inspection machine.

An embodiment of the present invention will be described with reference to FIG.
In FIG. 2, 21 is a container material. The container material is supplied at a predetermined speed from the wound state coated with the heat seal resin layer to the apparatus of FIG. 23 is a heating device , and the heating unit is controlled by the supply amount of the container material during the required heating of the heat seal mitigating unit and moves to a predetermined position, and the required heat seal mitigating unit is heated to remove the heat seal resin layer. melted, after the required heating is device you move to the retracted position to avoid unnecessary heating. 24 is a heat seal relaxation particle projection unit with a built-in projection apparatus, the thermal weldability without particles carried in the air preheated to near the heat sealing temperature, heat of 21 container material which is heated by the 23 heating unit The projection is performed on the surface from the projection unit , and the projection time is controlled by the supply amount of the 21 container material. Reference numeral 25 denotes a brush, which is disposed inside the 24 heat seal relaxation particle projection unit and removes excess particles. 26 is a cooling roll, and the 26 cooling roll is provided in the room of the 24 projection unit immediately after passing the 25 brush and immediately after passing the 24 particle projection unit , and performs particle pressing and cooling of the heating surface to fix the particles. Pressure in the chamber 24 particle projection portion, so as to prevent the scattering particles to the particle projection unit outside maintained more negative than atmospheric pressure of the pretreatment apparatus installation environment of the present invention. Reference numeral 22 denotes a material holding cooling roll, which keeps the distance between the container material and the pretreatment device of the present invention constant in the section from the 23 heating unit to the 26 cooling roll, and prevents a temperature rise on the opposite surface of the container material by heating. A material holding cooling roll. Reference numeral 29 denotes a non-contact optical inspection machine. After the particle projection fixation is completed, the 29 non-contact optical inspection machine is arranged at a predetermined position to confirm the fixation of the particles. Stop the entire pretreatment device and mark the alarm and container material. This pretreatment device of the present invention is composed of a container material holding cooling roll, a container material heating section, a particle projection section, a projection particle fixing section, a heating section cooling roll, and a non-contact optical inspection machine. the container material supply amount of holding the cooling roll thus controlled and performs required processing.

The pre-treatment device of the present invention can be used to ease the opening of heat-sealed containers, and to ease the opening seal of mass production containers that do not contaminate the opening site by pressing the container when the container grips and opening the contents of the package. Available.

Claims (1)

A roll that holds and cools the container material coated with a thermoplastic resin supplied at a predetermined speed, a heating unit that heats the heat seal mitigation part of the material, and heat-resistant particles that are not thermally weldable with heated air in the heating unit a projection unit for projecting the heating surface heated by conveying heated apparatus, a cooling roll for solid wear cooled press and cooled to project particles after heating surface of the projection, there in an apparatus comprising a non-contact optical inspection machine Te, container material pretreatment apparatus for thus controlling the operation of each unit in the material supply amount of the material holding the cooling roll.

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