CN1274668A - Easy-to-open plastic bag - Google Patents
Easy-to-open plastic bag Download PDFInfo
- Publication number
- CN1274668A CN1274668A CN 00117195 CN00117195A CN1274668A CN 1274668 A CN1274668 A CN 1274668A CN 00117195 CN00117195 CN 00117195 CN 00117195 A CN00117195 A CN 00117195A CN 1274668 A CN1274668 A CN 1274668A
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- China
- Prior art keywords
- bag
- film
- easy
- density polyethylene
- stacks
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Abstract
Each of the high-density polyethylene bags in a stack has around the mouth a compounded low-density polyethylene strip, which is dot connected through heating to the next bag in the stack. When one bag is taken, the next bag can open the mouth automatically, and this can reduce operation step for charging the bag.
Description
What the present invention relates to is the plastic film for wrapping bag, especially a kind of pull can order self-opening sack in drawing plastic film bag.
At present, large supermarket is seen everywhere in the city, and people can purchase required daily necessities and food in the supermarket that commodity enrich.Therefore, the sale in each exit, supermarket is normally busy and nervous, and the salesman should check the required commodity of purchasing of customer, collects payment for goods, and the plastic film bag of again commodity of selling being packed into carries to make things convenient for customers.The commodity plastic film bag of packing into is seemed very simple, but in extremely busy supermarket, the salesman finished sell goods after, also one one of the plastic film bag of closure to be opened and commodity could be packed into, both can increase salesman's work amount, and can influence marketing efficiency again.Therefore, how reducing the work capacity that the link of checking out is sold in the supermarket, is the problem that businessman is being studied always.
The objective of the invention is deficiency, a kind of easy-to-open plastic bag is provided at existence in the above-mentioned plastic film bag use.During use, this stacking is hung on plastic film bag on bag frame, pulls in order that sack can self-opening when getting.
Easy-to-open plastic bag of the present invention is the plastic film bag that a kind of a kind of near film sack position of adopting part composite double layer technology to make is provided with the composite bed of low melt body temperature, described low melt body temperature material composite bed can be compounded on the one-sided adventitia of plastic film bag, or is compounded on the adventitia of the corresponding both sides of plastic film bag; Execute what one then in the low melt body temperature material composite bed position of the bag film sack that stacks and be enough to make the molten sticking temperature spot heating of the outer low melt body temperature material composite bed of bag film, make the bag film skin that stacks all put adhesion, promptly make the easy-to-open plastic bag product.
The principle of design of easy-to-open plastic bag of the present invention is: the characteristic of utilizing different melt body temperature materials, the material of two kinds of different melt body temperatures is made the plastic bag of part composite structure, apply a temperature that low melt body temperature material layer is melted then in the bag film composite bed position that stacks, the bag film that stacks can take place: low melt body temperature material layer fusing, it is molten sticking that another bag film that is in contact with it is taken place, and molten sticking phenomenon can not take place in that same temperature is next between the high melt body temperature thin layer.Because the composite bed of plastic bag of the present invention is low melt body temperature material, therefore can the origination point adhesion between the plastic bag that stacks and the bag, the interior interlayer of plastic bag then can adhesion.
Easy-to-open plastic bag of the present invention is extremely easy to use, the present invention's bag film is hung on bag frame routinely, when pulling when getting first bag film, because the internal layer of each bag film is not sticking mutually, and a side of first bag film is outer and second bag film one side skin is that point is sticking, so pulling when getting first bag film, the sack of first bag film can be opened, and inwardly puts into article easily for the user; Pull from the bag frame and pull following time when storing thing rear film bag, two bag films of phase adhesion are torn second bag film when pulling apart a company, the sack of second bag film is opened in the process of pullling, for the pack operation of article next time.The rest may be inferred, realizes purpose of the present invention.
Easy-to-open plastic bag of the present invention is compared with the composite plastic film bag of same principle design, and its biggest advantage is: reach under the preceding topic of goal of the invention in assurance, greatly reduce manufacturing cost.Easy-to-open plastic bag design science of the present invention, structure is more reasonable, is a kind of novel package plastic film bag that is suitable for promoting the use of.
The concrete manufacture method of easy-to-open plastic bag of the present invention is provided in detail by following examples.
Embodiment 1: a kind of plastic film bag that the composite bed of low melt body temperature is set in nearly film sack position that adopts part composite double layer technology to make, described low melt body temperature material composite bed is compounded on the one-sided adventitia of plastic film bag, the main material of film is a high density polyethylene (HDPE), being compounded in its outer composite bed is low density polyethylene (LDPE), the melt body temperature of described high density polyethylene (HDPE) is: 135 ℃, the melt body temperature of low density polyethylene (LDPE) is: 100 ℃; Executing what one temperature in the bag film sack center line composite bed position that stacks then is: 105～135 ℃ molten adhesion point heating, the temperature of this hot spot will run through whole pile of bag film, make the bag film skin that stacks all put adhesion, promptly make the easy-to-open plastic bag product.
Embodiment 2: a kind of plastic film bag that the composite bed of low melt body temperature is set in nearly film sack position that adopts part composite double layer technology to make, described low melt body temperature material composite bed is compounded on the adventitia of the corresponding both sides of plastic film bag, the main material of film is a high density polyethylene (HDPE), being compounded in its outer composite bed is low density polyethylene (LDPE), the melt body temperature of described high density polyethylene (HDPE) is: 135 ℃, the melt body temperature of low density polyethylene (LDPE) is: 100 ℃; Executing what one temperature in the bag film sack center line composite bed position that stacks then is: 105～135 ℃ molten adhesion point heating, the temperature of this hot spot will run through whole pile of bag film, make the bag film skin that stacks all put adhesion, promptly make the easy-to-open plastic bag product.
Claims (2)
1, a kind of easy-to-open plastic bag, it is characterized in that: adopt part co-extrusion two-layer process to make the film that a kind of film sack midline position has a composite bed, the main material of film is a high density polyethylene (HDPE), and being compounded in its outer strip layer is low density polyethylene (LDPE); Above-mentioned laminated film is made the packaging film bag that has symmetrical drop handle that neatly stacks by traditional handicraft; Executing what one then in the bag film sack center line composite bed position that stacks is enough to make the molten sticking temperature spot of bag film cladding material to heat, and makes the bag film skin that stacks all put adhesion, promptly makes the easy-to-open plastic bag product.
2, easy-to-open plastic bag according to claim 1 is characterized in that: the melt body temperature of described high density polyethylene (HDPE) material is: 135 ℃, the melt body temperature of low density polyethylene (LDPE) material is: 100 ℃; Molten adhesion point heating-up temperature is: 105～135 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00117195A CN1093488C (en) | 2000-06-22 | 2000-06-22 | Easy-to-open plastic bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00117195A CN1093488C (en) | 2000-06-22 | 2000-06-22 | Easy-to-open plastic bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274668A true CN1274668A (en) | 2000-11-29 |
| CN1093488C CN1093488C (en) | 2002-10-30 |
Family
ID=4586581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00117195A Expired - Fee Related CN1093488C (en) | 2000-06-22 | 2000-06-22 | Easy-to-open plastic bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093488C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374355C (en) * | 2002-08-23 | 2008-03-12 | 覃通衡 | Plastic film mouth-locking bag and its making method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2076963U (en) * | 1990-05-07 | 1991-05-15 | 赵苏星 | Multiple plastic film food packing bag |
| CN2288924Y (en) * | 1996-04-28 | 1998-08-26 | 殷德凯 | Packing bag made of plastic film |
-
2000
- 2000-06-22 CN CN00117195A patent/CN1093488C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100374355C (en) * | 2002-08-23 | 2008-03-12 | 覃通衡 | Plastic film mouth-locking bag and its making method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1093488C (en) | 2002-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |