CN2401478Y

CN2401478Y - Self-closing plastic bag for liquid package

Info

Publication number: CN2401478Y
Application number: CN 99252989
Authority: CN
Inventors: 鲁东; 史长生
Original assignee: YUTONG MEDICAL EQUIPMENT DEV CO Ltd HARBIN CITY
Current assignee: YUTONG MEDICAL EQUIPMENT DEV CO Ltd HARBIN CITY
Priority date: 1999-11-11
Filing date: 1999-11-11
Publication date: 2000-10-18
Anticipated expiration: 2009-11-11

Abstract

The utility model relates to a package bag, particularly a self-closing plastic package bag for liquids. The utility model can be used in the package industries, such as the chemical industry, the food industry, the alcohol industry, etc. The utility model is produced into a bag body provided with a filling opening by hot-pressing of plastic films. Both sides of the filling opening 1 of the bag body of the utility model are respectively pressed and fixed with a piece of PVC class film piece 2 and 3. The utility model has the advantages of reasonable structure, simple production process, low manufacture cost, easy use, reliability, etc.

Description

The packaging bag of self-sealing plastic liquid

The utility model relates to a kind of packaging bag, the packaging bag of particularly a kind of self-sealing plastic liquid.It can be widely used in the packaging industry of chemical industry, food, drinks etc.

At present, the plastic liquid packaging bag of in the plastic wrapping industry, using, though pour into the preceding filling exit that leaves at packaged liquid, after liquid is packed into, must use specialized equipment or instrument that filling exit is carried out the hot pressing sealing immediately, just can make packaged liquid no leak.During the liquid of user in using packaging bag, fully enclosed seal must be cut off, liquid could be taken out.Because the user does not generally have special-purpose water-tight equipment or instrument, may the seal that shearing is opened not sealed once more yet, so after seal is opened in shearing, if in the band liquid can not be once with clean, how remaining liquid continues to leave in the packaging bag is one and makes us very pain in the neck.Many times people have to seek in addition container and deposit these remaining liquid.In a word, the flexible package punch of existing structure all brings a lot of inconvenience to people in can production and daily use.

The purpose of this utility model is intended to overcome the deficiency of prior art, and designs a kind of rational in infrastructure, simple, easy to use, failure-free self-sealing plastic liquid packaging bag.

The utility model is made the bag that has filling exit by the plastic sheeting hot pressing, and there is a slice

PVC class diaphragm

2,3 both sides of the filling exit 1 in the utility model bag pressing and fixing respectively.

The utlity model has rational in infrastructurely, production technology is simple, low cost of manufacture, characteristics such as easy to use, reliable.

Fig. 1 is the utility model surface structure scheme drawing;

Fig. 2 is the plan structure scheme drawing of Fig. 1;

Fig. 3 for along A-A among Fig. 1 to local structure analyse and observe, the structure for amplifying scheme drawing;

Fig. 4 is the form scheme drawing of Fig. 3 in the liquid process of packing into;

Fig. 5 is the form scheme drawing of Fig. 3 after the liquid of packing into is self-enclosed.

Below in conjunction with accompanying drawing the technical solution of the utility model is further described:

As shown in Figure 1, 2, 3, bag of the present utility model is to be formed by tubular plastic sheeting two ends hot pressing, and the pressing mouth place of an end leaves filling exit therein.There is a slice

PVC class diaphragm

2,3 both sides that characteristics of the present utility model are the filling exit 1 in bag pressing and fixing respectively, and when packaged liquid was food,

PVC class diaphragm

2,3 should be non-poisonous.Bag inside can communicate with the outside by space and the filling exit 1 between this a pair of separate PVC film 2,3.When can was used, as shown in Figure 4, liquid to be filled was by pouring in the bag between filling exit 1 and two PVC class films.After can finished, as long as slightly firmly the air between two PVC class films is extruded, owing to have extremely strong adsorption affinity between the PVC class film, two PVC films will be attached together as shown in Figure 5 tightly, play the effect of sealing filling exit.In addition, the liquid and the air that pour in the bag also can produce pressure force to two PVC films, two PVC films are more closely fit together, and guarantee under the inside of packaging bag or exterior pressure, can not separate, guarantee that the liquid that can not of can leaks out from filling exit.In use, as long as a standby plastic catheter (this conduit does not need very long) is inserted between two PVC films that fit together by filling exit, and probe into the liquid that just can derive easily in the bag in the bag, and needn't destroy any part of bag.If the liquid in the bag can not be once with clean, when needing to continue in bag, to deposit,, get final product slightly firmly discharging two air between PVC class film as long as plastic catheter is extracted.Thus, the utlity model has the effect of automatic involution, saved necessary encapsulation process behind the existing packaging bag filling liquid, reduced production link, improved work efficiency.

Claims

1, a kind of self-sealing plastic liquid packaging bag is to make the bag that has filling exit by the plastic sheeting hot pressing, and there are a slice PVC class diaphragm (2), (3) in the both sides that it is characterized in that the filling exit (1) in bag pressing and fixing respectively.