KR19980069000U - Envelope check valve - Google Patents

Abstract

The present invention filters the contents in the powder state inside the package through the non-woven filter 400 in the air during the packaging packaging process, and the pure air only through the hole path of the film nozzle 300 film check valve 200 The device is released to the atmosphere through.

In addition, the external air is an envelope check valve (FIG. 1A) which prevents the external air from entering the inside of the bag because the film check valve 200 is blocking the hole of the film nozzle 300.

Therefore, it is a convenient device that can prevent the oxidization reaction of chemicals or foods due to the internal air due to the reduction of box packaging due to the discharge of air in the bag.

Description

Envelope Check Valve

[ purpose ]

The present invention releases the air in the bag into the atmosphere and prevents the air in the bag from being introduced into the bag. As the packaging is carried out with a large amount of air during automatic or manual packaging, the outer packaging box needs to be large. In addition, a lot of economic losses are incurred due to the bulky and infrequent loading in the transportation process of logistics, and also because the air is contained in the envelope during the transportation process of logistics, many economic losses occur due to the damage of the envelope. Focused on the ship. In addition, this method prevents deterioration due to oxidation or reaction by introducing a large amount of air when packaging not only food but also chemicals (medicines, pesticides, reagents), and it automatically releases a small amount of gas so There is an advantage to ensure safety in transportation and outdoor storage.

[Common Technique]

The check valve developed in the related art may be attached to the injection molding assembly, but it may be expensive and the automatic packaging machine (molding and filling and sealing) may not be applied and the protrusion may be protruded to the outside, resulting in various inconveniences.

[Designed field of technology]

The present invention is a device for discharging the air inside the bag through the hole of the film check valve 200 via the film nozzle 300 through the non-woven filter 400 in the content and air packaged state.

In the present invention, the film check valve 200 blocks the hole of the film nozzle 300 so that outside air is not introduced into the bag.

The construction of the material of the present invention is made of a non-woven filter 400 is a natural material and can be appropriately used through the mesh of the non-woven filter 400 according to the powder or the size of the contents, and also the filter containing carbon according to the properties of the drug, It can replace the filter and sterilization filter which have moisture-proof effect.

The material of the film nozzle 300 is a heat-adhesive material, and should have a small expansion against internal pressure.

Holes are drilled in the film nozzle 300. The size and quantity of holes can be selected according to the size of the bag and the type of the contents. The holes are perforated in the center of the film punching.

The material of the film check valve 200 is a material having heat adhesiveness, elasticity and elasticity, and a container having passed through the nonwoven filter 400 by the internal pressure of the bag or by an external forced discharge passes through the film nozzle 300. When the air reaches the check valve 200 and the film is pushed, the air is discharged through the hole drilled at the edge while being pushed by the force of the air.

The nonwoven filter 400, the film nozzle 300, and the film check valve 200 are thermally bonded in combination, and the primary molded envelope check valve (FIG. 1A) is continuously or separately opened on the inner surface thermal adhesive film 100. By attaching, envelopes can be made automatically or semi-automatically. In particular, the envelope check valve (Fig. 1A) can vary in size and is thin, so there is no difficulty in attaching directly to the automatic packaging machine.

No identifier above

1 is a structural exploded view of an envelope check valve.

1A is a completed perspective view of an envelope check valve.

1B is a sectional view of an envelope check valve.

Figure 2 is a perspective view of the envelope check valve attached to the film (aluminum coating, general PT, PE, etc.).

3 is a perspective view of the envelope check valve attached to the filled bag.

Figure 4 is a perspective view of the back shape attached to the envelope when the envelope check valve is three.

[Description of symbols on the main parts of the drawings]

100: film 110: punched holes in the packaging film

120: contents 200: film check valve

300: film nozzle 400: nonwoven filter

No identifier above

In the current packaging process, after degassing through the degassing packaging machine after molding and filling, the product is box-packed. If the bag check valve (Fig. 1A) is subjected to the bag forming process at the filling machine, the process can be reduced as well as the installation of the degassing packaging machine. The cost of operation can be reduced, resulting in cost savings and beautiful packaging. In addition, the inside air can be removed by the effect such as through a degassing packing machine, and the beauty of the appearance after packing can reduce the logistics cost by reducing the packaging box as well as the aesthetic effect of the product, and in the case of chemicals, the bag rupture due to gas generation It is a revolutionary device that can prevent this.

Claims (5)

Combination configuration of the nonwoven filter 400 film nozzle 300 film check valve 200 of Figure 2 and the envelope check valve of a similar type (Fig. 1A) Similar apparatus using thermal adhesive material and adhesive of the material of Figure 2 The film nozzle 300 or the film check valve 200 coated with a detachable adhesive on the surface between the film check valve 200 of the film nozzle 300 of FIG. Individually processed or continuous product of the check valve for attaching the envelope shown in Fig. 1A Product manufactured by applying the shape of the film nozzle 300 and the form of the film check valve 200 in the process of manufacturing the composite film fabric bag.