CN102848617A - Composite ventilating film with multilayered structure as well as production method and application thereof - Google Patents
Composite ventilating film with multilayered structure as well as production method and application thereof Download PDFInfo
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- CN102848617A CN102848617A CN2012103837555A CN201210383755A CN102848617A CN 102848617 A CN102848617 A CN 102848617A CN 2012103837555 A CN2012103837555 A CN 2012103837555A CN 201210383755 A CN201210383755 A CN 201210383755A CN 102848617 A CN102848617 A CN 102848617A
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- film
- sandwich construction
- acanthopore
- compound breath
- breath film
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Abstract
The invention relates to a packaging material and particularly relates to a composite ventilating film with a multilayered structure as well as a production method and an application thereof. The composite ventilating film is formed by overlapping and compounding a punctured ventilating film and a micro-pore ventilating film, so that the use defects of a gluing material are completely removed and the ventilating performance of the material is guaranteed. The composite ventilating film has the advantages that the cost is low and the machining is convenient; glue does not need to be coated, and a secondary blocking phenomenon of the punctured film and the a micro-pore ventilating film does not exist; and performances of the two types of the films are matched and adaptive, so that the ventilating performance and the moisture permeability of a product are guaranteed, the uniform ventilating effect is guaranteed under the condition of realizing multi-batch production, and the product quality is easy to guarantee.
Description
Technical field
The present invention relates to the packaging material class, be specifically related to a kind of compound breath film and production method and purposes of sandwich construction.
Background technology
The self-heating product that adopts on the market at present, such as the warm product that pastes, the selection of the breathable material layer of its inner bag packaging bag, the acanthopore of employing breathable material layer is arranged at present, perhaps adopt microporous breathable film, the acanthopore breathable material layer of employing adopts visible acanthopore, the content that causes generating heat easily overflows by acanthopore, pollute end user's clothing, because visible acanthopore can't keep hydrone to greatest extent, exist more serious familiar lacunas simultaneously; And the employing microporous breathable film, this film is that a kind of polythene material adds the calcium carbonate ion, by extruding the plastic sheeting of a kind of low permeable watertight that stretch to obtain, its heating temp and heating effect are very good, but the Air permenbility of microporous breathable film is owing to being subjected to up till now production technology, the restriction of equipment and technology, the Air permenbility of the employed microporous breathable film of inner bag packaging bag is unbalanced, unstable, this self-heating product that just causes making generates heat very unstable, the most cases product temperature is higher or on the low side, be easy to cause human body low temperature scald or product to reach less than temperature requirement, in addition, because microporous breathable film is ventilative inhomogeneous, thereby also cause self-heating product heating temp and the fever time of same preparation batch unstable; In order to evade defects, what there was the product use in market is gluing between acanthopore breathable material layer and the micro-porous permeable rete to be pasted together use, can improve like this gas permeability stability of self-heating product inner bag packaging bag, further improve the heating effect of product, but common PUR glue spraying mode or reticulate pattern gluing bonding mode, because glue spraying or gluing stop up the visible acanthopore of acanthopore ventilated membrane composite bed, the result causes acanthopore breathable material layer and micro-porous permeable rete without circulation of air, react needed oxygen and can't be penetrated into by acanthopore that thereby the micro-porous permeable rete enters inner bag and metal reacts, cause on the contrary self-heating product because Air permenbility is inadequate, do not generate heat or temperature is lower can't use; So Chinese patent 2011102909655, a kind of breathable composite is disclosed, this invention adopts hollow out reticulate pattern gluing mode to form the adhesive glue of adhesive layer by the place of the reticulate pattern on the glue spreader that is formed with the hollow out reticulate pattern, place in hollow out does not have rubberised layer, thereby making acanthopore breathable composite layer and micro-porous permeable rete only is compound in the local adhesion of reticulate pattern in bonding by adhesive layer, and all be not formed with adhesive glue in the position of hollow out, also see through the micro-porous permeable layer thereby make things convenient for air to pass through the acanthopore composite layer.But such disadvantage is the Air permenbility of whole packaging bag and remains inhomogeneous, exists part still not have air permeable effect at its adhesive layer, and therefore heating is unbalanced, and certainly same unavoidable is the phenomenon that acanthopore is stopped up at the gluing place.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part, a kind of compound breath film and production method and purposes of sandwich construction are provided, this compound breath film adopts acanthopore ventilated membrane and microporous breathable film superimposion, thoroughly abandon the use drawback of adhesive material, guaranteed the permeability of material.
The object of the invention realizes being finished by following technical scheme:
A kind of compound breath film of sandwich construction is characterized in that, described compound breath film is formed by acanthopore ventilated membrane and microporous breathable film superimposion.
Described acanthopore ventilated membrane is composited for two membranes at least, and is distributed with acanthopore on it.
Having a skim in the described two membranes at least is one or more mixing in the materials such as paper substrate, nonwoven polypropylene fabric, terylene non-woven fabric, nylon nonwoven fabrics, plant fiber non-woven fabric, chemical ﹠ blended fabric.
Have one or more mixing in the materials such as skim polyethylene, polypropylene and TPUE rubber (TPU) in the described two membranes at least.
Described superimposion is the rear roll-in composite molding of stack.
The production method of the compound breath film of a kind of sandwich construction of ubi supra is characterized in that, described method comprises following steps: at first the vapor transfer rate according to the compound breath film of described sandwich construction requires to select adaptive acanthopore ventilated membrane and microporous breathable film; Secondly described acanthopore ventilated membrane and the described microporous breathable film superimposion that will choose consist of the compound breath film of described sandwich construction.
The purposes of the compound breath film of a kind of sandwich construction of ubi supra is used for the material as packaging bag bag body.
A kind of preparation method of packaging bag, the compound breath film that relates to a kind of sandwich construction that the claims 1-7 addresses, it is characterized in that, compound breath film with described sandwich construction, formation packaging bag pressed, fused to size and gum material layer by 60 ℃ of-200 ℃ of hot pressing, so that glue at the edge sealing place in the edge sealing position as required.
The ubi supra packaging bag is used for the purposes that packs of spontaneous heating material.
Advantage of the present invention is, cost is low, easy to process, owing to need not gluing, for punching membrane and microporous breathable film all the secondary clogging can not appear, adjust by the coupling of two class film properties, ventilative, the water vapour permeability of product have not only been guaranteed, and can realize that product quality easily guarantees in the situation that multiple batches of production guarantees that air permeable effect is balanced.
The specific embodiment
By the following examples feature of the present invention and other correlated characteristic are described in further detail, so that technical staff's of the same trade understanding:
The compound breath film of a kind of sandwich construction that the present embodiment relates to, its production method comprises following steps:
At first select two membranes, wherein a skim is one or more mixing in the materials such as paper substrate, nonwoven polypropylene fabric, terylene non-woven fabric, nylon nonwoven fabrics, plant fiber non-woven fabric, chemical ﹠ blended fabric, and another tunic is one or more mixing in the materials such as polyethylene, polypropylene and TPUE rubber (TPU);
With after the above-mentioned two membranes Combined Processing through mechanical acanthopore, thereby obtain the acanthopore ventilated membrane, wherein acanthopore be distributed as uniformly, but its limit section is used for sealing place, need not certain acanthopore;
Secondly with above-mentioned acanthopore ventilated membrane and one deck microporous breathable film superimposion, can consider by roll-in compoundly, so that the non-acanthopore position of acanthopore ventilated membrane and microporous breathable film applying, thereby consisted of the compound breath film of the present embodiment product-a kind of sandwich construction;
Above-mentioned microporous breathable film is to add the calcium carbonate ion in polythene material, by extruding the plastic sheeting of the low permeable watertight that obtains of stretching.
Above-mentioned acanthopore ventilated membrane and microporous breathable film roll-in are compound, to utilize the design feature of two membranes to realize the applying of the two, owing to spreading all over acanthopore on the acanthopore ventilated membrane, between the two when being subject to roller pressure, non-acanthopore position is compared suffered pressure and is wanted large many with the acanthopore position, therefore form binding face at non-thorn bore portion, realize compound between the two.Binding face place therein still can guarantee good air permeable effect.
The compound breath film of a kind of sandwich construction of the present embodiment product obviously can be used in any packing that needs air permeable effect.When it was used as packaging bag, size and gum material layer went out to adopt 150 ℃ of hot pressing at its edge sealing as required, just can press, fuse the formation packaging bag so that glue at the edge sealing place.The compound breath film of the sandwich construction of the present embodiment, when being used for packaging bag, after processing through at least one banding limit, the fitting part can separate between its acanthopore ventilated membrane and the microporous breathable film so that ventilative, the effect that wets is better thoroughly.
The present embodiment product can consist of self-heating product as the purposes that packs of spontaneous heating material.
The present embodiment is adaptive by the selection of punching membrane and microporous breathable film, the vapor transfer rate that guarantees product meets product requirement, and the product index that can select such as common existing microporous breathable film is respectively the product type of per 24 hours, every square meter 900g, 800g, 600g and the different vapor transfer rates of four classes such as 500g; And the product index that can select of microporous breathable film is within per minute 10-1000ml Air permenbility scope.
Therefore be per 24 hours, the specific requirement of every square meter 500g for commercially available ventilated membrane product vapor transfer rate, the present embodiment product is when concrete production, when selecting adaptive punching membrane and microporous breathable film, the aim of following is, if the vapor transfer rate of the microporous breathable film of selecting is larger, when then within per minute 10-1000ml Air permenbility scope, selecting adaptive punching membrane, select the corresponding little punching membrane of Air permenbility to match, satisfy the specific requirement of vapor transfer rate 500 to guarantee final the present embodiment product; Otherwise, if the vapor transfer rate of the microporous breathable film of selecting is smaller, when within per minute 10-1000ml Air permenbility scope, selecting adaptive punching membrane, select the corresponding large punching membrane of Air permenbility to match, same purpose is in order to guarantee that final the present embodiment product satisfies the specific requirement of vapor transfer rate 500.
As seen by above-mentioned, the scheme of the present embodiment can by the selection coupling to property of raw material, be adjusted the performance of final products, to satisfy the different market demands.
Claims (9)
1. the compound breath film of a sandwich construction is characterized in that, described compound breath film is formed by acanthopore ventilated membrane and microporous breathable film superimposion.
2. the compound breath film of a kind of sandwich construction according to claim 1 is characterized in that, described acanthopore ventilated membrane is composited for two membranes at least, and is distributed with acanthopore on it.
3. the compound breath film of a kind of sandwich construction according to claim 2, it is characterized in that, having a skim in the described two membranes at least is one or more mixing in the materials such as paper substrate, nonwoven polypropylene fabric, terylene non-woven fabric, nylon nonwoven fabrics, plant fiber non-woven fabric, chemical ﹠ blended fabric.
4. the compound breath film of a kind of sandwich construction according to claim 2 is characterized in that, has one or more mixing in the materials such as skim polyethylene, polypropylene and TPUE rubber (TPU) in the described two membranes at least.
5. the compound breath film of a kind of sandwich construction according to claim 1 and 2 is characterized in that, described superimposion is the rear roll-in composite molding of stack.
6. the production method of the compound breath film of a kind of sandwich construction of addressing of the claims 1-5, it is characterized in that, described method comprises following steps: at first the vapor transfer rate according to the compound breath film of described sandwich construction requires to select adaptive acanthopore ventilated membrane and microporous breathable film; Secondly described acanthopore ventilated membrane and the described microporous breathable film superimposion that will choose consist of the compound breath film of described sandwich construction.
7. the purposes of the compound breath film of a kind of sandwich construction of addressing of the claims 1-6 is used for the material as packaging bag bag body.
8. the preparation method of a packaging bag, the compound breath film that relates to a kind of sandwich construction that the claims 1-7 addresses, it is characterized in that, compound breath film with described sandwich construction, formation packaging bag pressed, fused to size and gum material layer by 60 ℃ of-200 ℃ of hot pressing, so that glue at the edge sealing place in the edge sealing position as required.
9. claim 8 is addressed the purposes that packs that packaging bag is used for spontaneous heating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103837555A CN102848617A (en) | 2012-10-11 | 2012-10-11 | Composite ventilating film with multilayered structure as well as production method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103837555A CN102848617A (en) | 2012-10-11 | 2012-10-11 | Composite ventilating film with multilayered structure as well as production method and application thereof |
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| CN102848617A true CN102848617A (en) | 2013-01-02 |
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| CN2012103837555A Pending CN102848617A (en) | 2012-10-11 | 2012-10-11 | Composite ventilating film with multilayered structure as well as production method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210200A (en) * | 2014-07-24 | 2014-12-17 | 周涛 | Functional breathable film composite nonwoven cloth |
| CN112848570A (en) * | 2021-02-02 | 2021-05-28 | 东莞市汇齐新材料有限公司 | High-moisture-permeability film and laminating process thereof |
| CN113524832A (en) * | 2021-06-09 | 2021-10-22 | 黄山永新股份有限公司 | Paper-plastic composite packaging material with high air permeability and preparation method thereof |
| CN117863674A (en) * | 2024-02-27 | 2024-04-12 | 广东九嘉通讯科技有限公司 | Waterproof breathable composite film and preparation method thereof |
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| US3679540A (en) * | 1970-11-27 | 1972-07-25 | Celanese Corp | Reinforced microporous film |
| CN1158104A (en) * | 1994-09-20 | 1997-08-27 | 埃克森化学专利公司 | Microporous film/nonwoven composites |
| CN1211213A (en) * | 1996-02-15 | 1999-03-17 | 克洛佩塑料产品公司 | Method of making cloth-like microporous laminate of nonwoven fibrous web and thermoplastic film |
| JP2000109122A (en) * | 1998-10-06 | 2000-04-18 | Shimomura Kakoshi Kk | Packaging material |
| JP2008155976A (en) * | 2006-12-26 | 2008-07-10 | Okamoto Ind Inc | Packaging material used for disposable body warmer and like |
| CN202045923U (en) * | 2011-03-29 | 2011-11-23 | 东莞市正新包装制品有限公司 | Breathable film used for manufacturing plastic bag |
| CN102267266A (en) * | 2011-04-27 | 2011-12-07 | 张继承 | Breathable membrane for warming plaster, preparation method and application thereof |
| CN102501493A (en) * | 2011-09-29 | 2012-06-20 | 青岛安龙日用品有限公司 | Ventilated compounding layer, compounding material, preparation method, compounding method and package bag |
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2012
- 2012-10-11 CN CN2012103837555A patent/CN102848617A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3679540A (en) * | 1970-11-27 | 1972-07-25 | Celanese Corp | Reinforced microporous film |
| CN1158104A (en) * | 1994-09-20 | 1997-08-27 | 埃克森化学专利公司 | Microporous film/nonwoven composites |
| CN1211213A (en) * | 1996-02-15 | 1999-03-17 | 克洛佩塑料产品公司 | Method of making cloth-like microporous laminate of nonwoven fibrous web and thermoplastic film |
| JP2000109122A (en) * | 1998-10-06 | 2000-04-18 | Shimomura Kakoshi Kk | Packaging material |
| JP2008155976A (en) * | 2006-12-26 | 2008-07-10 | Okamoto Ind Inc | Packaging material used for disposable body warmer and like |
| CN202045923U (en) * | 2011-03-29 | 2011-11-23 | 东莞市正新包装制品有限公司 | Breathable film used for manufacturing plastic bag |
| CN102267266A (en) * | 2011-04-27 | 2011-12-07 | 张继承 | Breathable membrane for warming plaster, preparation method and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104210200A (en) * | 2014-07-24 | 2014-12-17 | 周涛 | Functional breathable film composite nonwoven cloth |
| CN104210200B (en) * | 2014-07-24 | 2016-05-25 | 徐文宇 | Functional ventilated membrane compound nonwoven cloth |
| CN112848570A (en) * | 2021-02-02 | 2021-05-28 | 东莞市汇齐新材料有限公司 | High-moisture-permeability film and laminating process thereof |
| CN113524832A (en) * | 2021-06-09 | 2021-10-22 | 黄山永新股份有限公司 | Paper-plastic composite packaging material with high air permeability and preparation method thereof |
| CN117863674A (en) * | 2024-02-27 | 2024-04-12 | 广东九嘉通讯科技有限公司 | Waterproof breathable composite film and preparation method thereof |
| CN117863674B (en) * | 2024-02-27 | 2024-06-07 | 广东九嘉通讯科技有限公司 | Waterproof breathable composite film and preparation method thereof |
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