CN202045923U - Breathable film used for manufacturing plastic bag - Google Patents
Breathable film used for manufacturing plastic bag Download PDFInfo
- Publication number
- CN202045923U CN202045923U CN2011200872647U CN201120087264U CN202045923U CN 202045923 U CN202045923 U CN 202045923U CN 2011200872647 U CN2011200872647 U CN 2011200872647U CN 201120087264 U CN201120087264 U CN 201120087264U CN 202045923 U CN202045923 U CN 202045923U
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- intermediate layer
- endosexine
- extexine
- hole
- breathable films
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Abstract
The utility model relates to the technical field of films, in particular to a breathable film used for manufacturing a plastic bag. The breathable film comprises an outer surface layer, a middle layer and an inner surface layer which are sequentially fitted, wherein uniformly distributed holes are respectively formed on the outer surface layer, the middle layer and the inner surface layer. Due to the three-layer structure, the tensile strength and tearing strength of the breathable film can be increased on the basis of keeping breathability, and the manufactured plastic bag is beneficial to contain breathable goods.
Description
Technical field
The utility model relates to the thin film technique field, is specifically related to a kind of breathable films that is used to make polybag.
Background technology
When buying article; everybody often can use polybag; carry the dress article with polybag; but present polybag is not possess permeability mostly; therefore with some article that need breathe freely of polybag splendid attire the time; as splendid attire fresh fruit, vegetables etc., the time of splendid attire is subjected to certain restriction, like this to using and preserving article and all make troubles.
The patent No. is that 03219727.6 Chinese utility model patent has been introduced a kind of film, this film has the open-celled structure more than two layers, the outer hole structure can form a kind of leakproof wall construction, but this perforated film with leakproof wall construction is mainly used in articles for use such as sanitary napkin, is used for water conservancy diversion liquid, is about to this film and is applied on the polybag, also can be owing to the pore structure area is bigger, have influence on the working strength of polybag, when carrying, can cause polybag to damage than heavy articles.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and provides a kind of sound construction, good being used to of permeability to make the breathable films of polybag.
The utility model is realized by following technology:
A kind of breathable films that is used to make polybag, it comprises extexine, intermediate layer and the endosexine of fitting successively, described extexine, intermediate layer and endosexine all offer the hole that is evenly distributed.
Wherein, the perforate gross area of described endosexine is less than the perforate gross area in described intermediate layer, and the perforate gross area in described intermediate layer is less than the perforate gross area of described extexine.
Preferably, the percent opening of described endosexine is 10%, and the percent opening in described intermediate layer is 15%, and the percent opening of described extexine is 20%.
Wherein, fit by the mode of hot pressing in described extexine, intermediate layer and endosexine.
Wherein, described hole is circle, rectangle or waveform.
Preferably, the hole of described extexine is rectangular, and the hole in described intermediate layer is rounded, the hole undulate of described endosexine.
The beneficial effects of the utility model are: this kind is used to make the breathable films of polybag, and it comprises extexine, intermediate layer and the endosexine of fitting successively, all offers the hole that is evenly distributed on extexine, intermediate layer and the endosexine.The utility model is provided with three-decker, has strengthened tensile strength of the present utility model and tearing strength again on the basis that guarantees gas permeability, and the polybag that makes helps the article that splendid attire need be breathed freely.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an extexine structural representation of the present utility model.
Fig. 3 is an interlayer structure schematic diagram of the present utility model.
Fig. 4 is an endosexine of the present utility model structural representation.
Reference numeral
1---extexine
2---the intermediate layer
3---the endosexine
4---the hole.
The specific embodiment
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing the utility model is further described, the content that embodiment is mentioned not is to qualification of the present utility model.
Referring to accompanying drawing 1-4, a kind of breathable films that is used to make polybag can adopt materials such as PE, PP, PVC, and it comprises extexine 1, intermediate layer 2 and the endosexine 3 of fitting successively, and extexine 1, intermediate layer 2 and endosexine 3 all offer the hole 4 that is evenly distributed.The utility model is provided with three-decker, has strengthened tensile strength of the present utility model and tearing strength again on the basis that guarantees gas permeability, and the polybag that makes helps the article that splendid attire need be breathed freely.
The perforate gross area of endosexine 3 is less than the perforate gross area in intermediate layer 2, the perforate gross area in intermediate layer 2 is less than the perforate gross area of extexine 1, for make gas can be from the endosexine 3, intermediate layer 2, extexine 1 appear smoothly, so the percent opening of the endosexine 3 of breathable films, intermediate layer 2, extexine 1 is designed to increase successively.
The percent opening of endosexine 3 is 10% in the present embodiment, and the percent opening in intermediate layer 2 is 15%, and the percent opening of extexine 1 is 20%, has so both increased gas permeation rate, makes the breathable films be used to make polybag have certain tearing strength and hot strength simultaneously.
Fit by the mode of hot pressing in extexine 1, intermediate layer 2 and endosexine 3, the mode by hot pressing not only can make extexine 1, intermediate layer 2 and endosexine 3 in conjunction with closely, and the use of having saved adhesive.
Hole 4 is circle, rectangle or waveform, and the hole of extexine 1 is rectangular in the present embodiment, and the hole in intermediate layer 2 is rounded, the hole undulate of endosexine 3, by such combination good permeability not only, and tearing strength and hot strength height, other compound mode can certainly be adopted.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (6)
1. breathable films that is used to make polybag is characterized in that: it comprises extexine, intermediate layer and the endosexine of fitting successively, and described extexine, intermediate layer and endosexine all offer the hole that is evenly distributed.
2. a kind of breathable films that is used to make polybag according to claim 1, it is characterized in that: the perforate gross area of described endosexine is less than the perforate gross area in described intermediate layer, and the perforate gross area in described intermediate layer is less than the perforate gross area of described extexine.
3. a kind of breathable films that is used to make polybag according to claim 2 is characterized in that: the percent opening of described endosexine is 10%, and the percent opening in described intermediate layer is 15%, and the percent opening of described extexine is 20%.
4. a kind of breathable films that is used to make polybag according to claim 1, it is characterized in that: fit by the mode of hot pressing in described extexine, intermediate layer and endosexine.
5. a kind of breathable films that is used to make polybag according to claim 1 is characterized in that: described hole is circle, rectangle or waveform.
6. a kind of breathable films that is used to make polybag according to claim 1, it is characterized in that: the hole of described extexine is rectangular, and the hole in described intermediate layer is rounded, the hole undulate of described endosexine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200872647U CN202045923U (en) | 2011-03-29 | 2011-03-29 | Breathable film used for manufacturing plastic bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200872647U CN202045923U (en) | 2011-03-29 | 2011-03-29 | Breathable film used for manufacturing plastic bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045923U true CN202045923U (en) | 2011-11-23 |
Family
ID=44986246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200872647U Expired - Fee Related CN202045923U (en) | 2011-03-29 | 2011-03-29 | Breathable film used for manufacturing plastic bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848617A (en) * | 2012-10-11 | 2013-01-02 | 王周 | Composite ventilating film with multilayered structure as well as production method and application thereof |
-
2011
- 2011-03-29 CN CN2011200872647U patent/CN202045923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848617A (en) * | 2012-10-11 | 2013-01-02 | 王周 | Composite ventilating film with multilayered structure as well as production method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20150329 |
|
| EXPY | Termination of patent right or utility model |