CN2534112Y

CN2534112Y - Liquid packaging bag

Info

Publication number: CN2534112Y
Application number: CN 02225669
Authority: CN
Inventors: 陈礎基
Original assignee: S&t Cosmetics Pty Ltd
Current assignee: Opal Cosmetics Huizhou Co Ltd
Priority date: 2002-01-30
Filing date: 2002-01-30
Publication date: 2003-02-05
Anticipated expiration: 2012-01-30

Abstract

A liquid packaging bag comprises front/back sheets forming a bag body by seal connecting edges thereof. The bag top has one side presealed, and the other side with a preserved feeding port. The bag further comprises a third sheet seal connected with the edges of the other two sheets to form a bag bottom, and the bottom is in shape of olive, and has two ends warped to make the bag bottom in hammock form. The bag top has the presealed side preserved with a channel communicating with the inside of the bag which is formed due to unbonding of the front and back sheets, and the other end of the channel communicating with the bag outside is sealed by adhesion or hot pressing. When used for suspension occasion, holes allowing the hanging thread to pass through are symmetrically provided at the corresponding edge of the bag body lower end. The utility model has short and simple production process, and low cost, which can be achieved by general method. In use, the sealed preserved chan nel end port is cut or torn to open so as to access the content in the bag. The structure of the utility model ensures that the content in the bag will not flow out even with upside down in absence of external compression force.

Description

A kind of pack for liquids

Technical field

The utility model relates to a kind of pack for liquids, be meant especially a kind of by high molecular film material make can self-sealing pack for liquids.

Background technology

Existing commercially available pack for liquids is used for beverage packaging more, the employing MULTILAYER COMPOSITE forms, basic structure form class is like Chinese patent ZL94220356.9 " packaging bag of automatic sealing thin film fluid " and the disclosed structure of ZL99252989.1 " packaging bag of self-sealing plastic liquid ", just the sack tube is used hard material always and is added a cover at nozzle, as the disclosed form of Chinese patent ZL97237183.4 " amorphous band mouth pack for liquids ", this kind structure work programme is more, complex process, cost height; This kind structure is that bonding or hot pressing forms with the whole edge of two sheet materials, and inner capacities is little, and the relative degree of utilization of material is low, and bag is the edge discontinuity particularly, easily produces leakage phenomenon.

Summary of the invention

The purpose of this utility model provides that a kind of inner capacities is big, the relative degree of utilization height of material, easy to use, failure-free pack for liquids.

Designed a kind of pack for liquids according to above-mentioned purpose, two sheet materials before and after comprising, bonding or the hot pressing in the sheet material edge back that is tightly connected constitutes bag, be reserved with filling exit on the bag top, also have the 3rd sheet material in addition, the back forms a bag end with other two sheet material edges are bonding or hot pressing is tightly connected at this sheet material edge.Shape is olive-shaped at the bottom of this bag, can amount to along olivary center line, or hot pressing bonding with the bag two ends, back that are tightly connected upwarp and become the hammock shape at the bottom of making bag.In the course of processing, bag top or sack place one side with bag seals in advance earlier, the filling liquid mouth of opposite side for reserving, bonding again or hot pressing sealing behind the content to be filled.Push up leak free one side in advance at bag, be reserved with the passage that communicates in one one end and the bag, this passage leads to the bonded or hot pressing sealing in the outer another port of bag, and this passage can adopt and be wavy, different form or be convenient to the linearity that conduit inserts.When the utility model need be used in the suspension occasion, can and have the hole of passing for lanyard symmetrically in edge, bag lower end correspondence.

The utility model structure smoothness, reasonable, capacity is big, meets mechanics principle, and is not fragile in the use; Production process is few, and technology is simple, and is easy to process, and cost is low.Add man-hour, only need to adopt general bonding or hot pressing can finish the main body moulding, sack reserved passageway place then needs the special hot pressing mould, with sheet material before and after guaranteeing not bonding and form an end with bag in the passage that communicates.During use, the user only need cut or tear fully enclosed reserved passageway mouth, can use a bag interior content.Because the bag bottom is vacuum state when being inverted, the inner and outer air pressure difference has guaranteed that content can not flow out from opened porthole in the bag; The surface tension that remains in the small amount of liquid in the passage simultaneously can make two sheet materials that constitute passage bonding mutually, also avoided content to flow out naturally, particularly splendid attire is comparatively all the more so when the liquid of thickness such as bath foam etc. in bag, unless push by force through external force and could use that content overflows in the bag, in case squeese pressure disappearance then seal voluntarily.

Description of drawings

Accompanying drawing 1 be the utility model not the master during the can content look scheme drawing; Accompanying drawing 2 is back views of accompanying drawing 1; Accompanying drawing 3 is the axle side scheme drawings after accompanying drawing 1 is finished can, sealing process; Accompanying drawing 4 is complete section schematic side view of accompanying drawing 3.

Specific embodiments

With reference to accompanying drawing.From accompanying drawing 1,2,3 as seen, the utility model packaging bag by the forward and backward and end totally three sheet materials bonding or hot pressing forms through routine, have bonding or hot pressing edge regions 1 at periphery, just bonding or hot pressing seals zone 2 after there is the perfusion content on bag top, in order to increase bulk strength and to make the internal capacity maximization, broadside edge and egative film material arc hammock type structural form have been adopted.Be inverted running condition owing to be reserved with exit passageway and normal the appearance at the sack place, so the edge at sack place is more roomy.Accompanying drawing 3 is clearly given and has been shown configuration state of the present utility model behind the splendid attire content.

The use case that from accompanying drawing 1, provides, after the user learns the utility model splendid attire content with may be obvious that, the use under inversion state.

Claims

1, a kind of pack for liquids, two sheet materials before and after comprising, the bonding or hot pressing in sheet material edge back that is tightly connected constitutes bag, is reserved with filling exit on the bag top, it is characterized in that in addition the 3rd sheet material, the back forms a bag end with other two sheet material edges are bonding or hot pressing is tightly connected at this sheet material edge.

2, packaging bag according to claim 1 is characterized in that described bag end shape is olive-shaped, can amount to along olivary center line, or hot pressing bonding with the bag two ends, back that are tightly connected upwarp and become the hammock shape at the bottom of making bag.

3, packaging bag according to claim 1 and 2 is characterized in that sealing the filling liquid mouth of opposite side for reserving in advance in the bag top or sack place one side of bag.

4, packaging bag according to claim 3 is characterized in that pushing up leak free one side in advance at bag, is reserved with the passage that communicates in one one end and the bag, and this passage leads to the bonded or hot pressing sealing in the outer another port of bag.

5, packaging bag according to claim 4 is characterized in that described passage is wavy, linearity or different form.

6, packaging bag according to claim 1 and 2 is characterized in that corresponding and have the hole of passing for lanyard symmetrically in edge, bag lower end.