CN201390004Y - Polypropylene composite hose sheet material - Google Patents
Polypropylene composite hose sheet material Download PDFInfo
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- CN201390004Y CN201390004Y CN200920053977U CN200920053977U CN201390004Y CN 201390004 Y CN201390004 Y CN 201390004Y CN 200920053977 U CN200920053977 U CN 200920053977U CN 200920053977 U CN200920053977 U CN 200920053977U CN 201390004 Y CN201390004 Y CN 201390004Y
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Abstract
The utility model discloses a polypropylene composite hose sheet material which consists of an outer film layer, a first binding layer, a barrier layer, a second binding layer and an inner film layer in sequence, wherein the outer film layer and/or the inner film layer is a polypropylene co-extruded film layer. A PP film is applied to the composite sheet material in the utility model; the surface brightness and the brightness of the prepared composite sheet material are remarkably superior to that of a PE composite hose; the metallic luster of an aluminum foil is better reacted through the high-transparence PP film; and compared with the sheet material with the same thickness, the roundness ad the stiffness of the PP composite hose has remarkable advantage. Therefore, the hose with larger pipe diameter can be manufactured so as to achieve multi-function, economization and cost optimization.
Description
Technical field
The utility model relates to the composite soft tube sheet material, comprises plastic-aluminum combined flexible pipe sheet material and overall plastic composite soft tube sheet material, can be used for toothpaste packing, also is applicable to medicine packing, packaging for foodstuff and cosmetic package etc.
Background technology
At present, the composite sheet packaging material that are used on the market on toothpaste, cosmetics, the medicine mainly are plastic-aluminum combined or overall plastic composite constructions.This two classes composite sheet has almost occupied all toothpaste packing market and the tubing packaging market of most of medicine.
Plastic-aluminum combined sheet material mainly is made of polyethylene film (PE), polyethylene and ethylene copolymers tack coat (FAA or EMAA) and aluminium foil (Al).PE adventitia and PE inner membrance adopt three-layer co-extruded blown film or The tape casting manufacturing usually, and the PE adventitia is mainly used in printing and outward appearance is showed, need deflection preferably, also need the good transparency in revealing the aluminium composite sheet, and white sheet material needs whiteness preferably.Therefore adventitia generally is made of high density polyethylene (HDPE) (HDPE), medium density polyethylene (MDPE) and LLDPE (LLDPE).Inner membrance is mainly used in the tubulation heat-sealing, and directly contacts with lotion of toothpaste, need have good heat sealability and chemical corrosivity, and general is that main polyethylene with other kinds constitutes with LLDPE.The barrier material of plastic-aluminum combined sheet material adopts aluminium foil, and through ten years development, the aluminium foil in the composite soft tube is reduced to 20um, 16um gradually from 30um, and the overwhelming majority of present domestic employing is the 12um aluminium foil.Bond by extrusion composite technology between PE film and the aluminium foil, binding material is polyethylene-acrylic copolymer (EAA) or polyethylene-methacrylic acid copolymer (EMAA).Plastic-aluminum combined sheet material from the nineties in last century introduce domestic since, experienced the fast development of more than ten years, still all realizing significant progress on the quality stability on the cost.Along with the change of development of technology and consumer spending custom, composite sheet is also more and more towards multifunction, environmental protectionization, economized development.
The barrier material of overall plastic flexible pipe composite sheet is polyethylene-polyvinyl alcohol copolymer (EVOH), generally is made of polyethylene inner membrance, polyethylene adventitia and barrier layer.Common barrier material thickness is the 5-15 micron at present, and the gross thickness of sheet material is about 300 microns.
Composite sheet prints on adventitia before composite sheet carries out tubulation, present domestic basic employing flexography process, and what Flexible tube for toothpaste was commonly used at present is 4～6 looks, and protects at the top layer finishing oil.More scabrous problem is that the PE film forms stress easily and concentrates in the printing process, produces the chromatography skew when printing, and is particularly outstanding in the winter time.Inner membrance mainly has been the involution effect, is heat seal strength and surface appearance to the major requirement of inner membrance, requires to be fit to packaging facilities, and coefficient of friction is had higher requirement.In the tubulation process, the banding of tubulation is to make inner membrance and adventitia carry out involution by high-frequency heat sealing, and the temperature sensitivity of high-frequency heat sealing is relatively low.
Extrude compound aspect, general have individual layer expressing technique and a two-layer coextrusion processes.The individual layer extruding technology is directly to extrude one deck EAA or EMAA connection PE film and aluminium foil, and coextrusion is to adopt two screw rods to extrude one deck PE and EAA simultaneously, and realization PE film is connected with aluminium foil.The extruded material of overall plastic composite sheet only needs polyethylene to get final product, and adopts individual layer to extrude with coextrusion processes and all can.
Summary of the invention
It is a kind of at the polypropylene composite soft tube sheet material that obviously is better than existing polyethylene sheets aspect mechanical property, the optical property that the purpose of this utility model is to provide.
The purpose of this utility model is achieved in that a kind of polypropylene composite soft tube sheet material, it is characterized in that: described polypropylene composite soft tube sheet material is made of theca externa, first tack coat, barrier layer, second tack coat, theca interna successively, and wherein theca externa and/or theca interna are polypropylene coextruded film layer.
Described barrier layer is aluminium foil or intercepts the plastic co-extrusion film.
Described aluminum foil thickness is 6 microns～30 microns; The thickness of described obstruct plastic co-extrusion film is 20 microns～160 microns.
Described polypropylene coextruded film layer is made of polyolefin layer more than three layers or three layers, and wherein one deck is a polypropylene layer at least.
Described polypropylene coextruded film layer is made of polyolefin layer more than three layers or three layers, and the gross thickness of film is 40 microns～150 microns.
The utility model is applied to composite sheet with the PP film, the composite sheet surface gloss that makes is better than the PE multiple tube, brightness is significantly better than the PE composite soft tube, the metallic luster of aluminium foil is better reacted by the PP film of the high grade of transparency, and with the contrast of the sheet material of same thickness, the circularity of PP composite soft tube, very property is also had a clear superiority, therefore can make the bigger flexible pipe of caliber, realizes multifunction, economized and cost optimization.
Description of drawings
Fig. 1 is the cross-sectional structure schematic diagram of the multi-layer co-extruded film of PP of two kinds of structures of the present utility model;
Fig. 2 is a cross-sectional structure schematic diagram of the present utility model.
The specific embodiment
Below the contrast Figure of description further describes the utility model, but polypropylene composite soft tube sheet material includes but not limited to method and structure cited in the example.
As shown in Figure 2, the utility model is a kind of polypropylene composite soft tube sheet material, is made of theca externa 1, first tack coat 2, barrier layer 3, second tack coat 4, theca interna 5 successively, and wherein theca externa 1 and/or theca interna 5 are the polypropylene coextruded film.
Because the premium properties that polypropylene itself has, the composite sheet by polypropylene is made has very outstanding advantage aspect transparency, and the polypropylene composite sheet has better deflection, under identical thickness, can make the bigger flexible pipe of caliber.Can realize multifunction, economized and cost optimization simultaneously.
Polypropylene (being called for short PP) is that with polyethylene (PE) difference the former synthon propylene (CH2=CH (CH3)) has more a methyl on a carbon atom.PP is a kind of hemicrystalline material, and it will be harder than PE and higher fusing point arranged.Because the PP temperature of homopolymers type was highly brittle when being lower than more than 0 ℃, therefore the PP material of many commerce is to add the Random copolymer RCP of 1～4% ethene or the blocked copolymer of height ratio ethylene contents more.The PP material of copolymer type has lower hot torsion temperature (100 ℃), low transparency, low-luster, low rigidity, but stronger impact strength is arranged.The intensity of PP increases along with the increase of ethylene contents.The vicat softening temperature of PP is 150 ℃.Because degree of crystallinity is higher, the surperficial rigidity of this material and anti-zoned trace characteristic are fine.There is not the ESC problem in PP.The turnover rate MFR scope of PP is 1～40.The PP material shock resistance characteristic of low MFR is better but ductility/strength is lower.For the material of identical MFR, wanting of the strength ratio homopolymers type of copolymer type is high.Because crystallization, the shrinkage factor of PP is quite high, is generally 1.8～2.5%.And the direction uniformity of shrinkage factor is more far better than materials such as PE-HD.The PP material of homopolymers type and copolymer type all has good resistance to water soak, antiacid caustic corrosion, antilysis.PP also at high temperature still has a non-oxidizability PP unlike PE chain is harder than PE's, thereby PP has higher fusion temperature and tensile strength, but degree of crystallinity is lower.Lower degree of crystallinity causes the transparency of PP film to be better than polyethylene.
As shown in Figure 1, the polypropylene coextruded film of using in the polypropylene composite soft tube sheet material that the utility model proposed can make by three-layer co-extruded, five-layer co-squeezing or more multi-layered coextrusion film blowing technology.Fig. 1 is an example with three-layer co-extruded and five-layer co-squeezing, forms respectively by layer 11, layer 12, the layer 13 three-layer co-extruded film that constitutes with by layer 11, layer 12, layer 13, layer 14, the layer 15 five-layer co-squeezing film that constitutes.This coextruded film can or be planted arbitrarily combination and makes by single or multiple lift coextrusion film blowing or curtain coating by two kinds in low density polyethylene, high density polyethylene, medium density polyethylene MDPE, LLDPE LLDPE, metallocene PE mPE, ionization copolymer, polyethylene-acrylic copolymer EAA, polyethylene-acrylate copolymer, polypropylene PP, the polyethylene-polybutene copolymer, and to have one deck at least among layer 11-13 or the layer 11-15 be polypropylene layer.For improving the peel strength between polypropylene and the polyethylene, can in polypropylene, suitably add other materials.The thickness proportion of each of this film layer can be regulated according to actual needs.
Adopting polypropylene and polyethylene to carry out film that coextrusion film blowing makes and have clear superiority comparing with polyethylene film aspect mechanical property, the optical property, below is data and the conclusion that draws by test:
1. aspect mechanical strength, the hot strength of PP film obviously is better than the PE film, and the PP film of 110um can reach the intensity that the 125umPE film just can reach.In the contrast of elongation at break, can see simultaneously, the PP film owing to have the advantage of PP and PE concurrently, elongation at break laterally with vertically all more than 1000%.Advantage aspect mechanical property make the PP film anti-fall and impact aspect have advantage.
2. deflection.For composite sheet, deflection is a very The key factor, only guarantees that composite sheet has enough deflections, could guarantee the circularity and the dimensional stability of flexible pipe.Data show, the PP film deflection of 110um even surpass the PE film of 125um.In addition, PP film deflection is in length and breadth to more even.
3. in the three-layer co-extruded structure, the peel strength between PP and the PE can be guaranteed more than 9N/15mm.
4. because polyethylene is the hemicrystalline material, reason such as even owing to inhomogeneous cooling in process, that speed is inconsistent is easy to generate stress, and there is more serious post crystallization phenomenon in the back.Be present in the external force in the adventitia, when composite sheet printed, very easily stress discharged and to cause register trouble, and is especially during the printing more than 6 looks, particularly outstanding.Just there is not such problem in polypropylene, and polyacrylic crystallization rate is very fast, and crystallization degree is low, can not produce stress accumulation, therefore can therefore not cause printing the problem of chromatography.In practice, no matter be on KMK tuber or AISA tuber, the PP composite sheet all shows the good machine of walking performance.
5. the PP film is applied to composite sheet, the composite sheet surface gloss that makes is better than the PE multiple tube.PP composite soft tube outward appearance brightness is significantly better than the PE composite soft tube, and the metallic luster of aluminium foil is better reacted by the PP film of the high grade of transparency.A clear superiority is also had in the contrast of the sheet material of same thickness, the circularity of PP composite soft tube, deflection.
Embodiment 1 (plastic-aluminum combined flexible pipe sheet material)
As shown in Figure 2, the polypropylene aluminium composite soft tube sheet material of present embodiment is made of theca externa 1, first tack coat 2, aluminium foil barrier layer 3, second tack coat 4 and theca interna 5 successively.
Contain polyethylene-acrylic copolymer EAA in first tack coat 2, second tack coat 4, perhaps EAA and low density polyethylene (LDPE) PE are by extrusion composite technology bonding aluminium foil barrier layer 3 and theca externa 1, theca interna 5.In the sheet material, polypropylene co-extrusion film is applied to theca externa 1 or theca interna 5, also can uses simultaneously.The thickness of theca externa is 80 microns to 140 microns, and the thickness of theca interna is 40 microns to 100 microns.The thickness of first, second tack coat 2,4 is 10 microns to 40 microns.
The concrete manufacturing process of present embodiment is as follows:
(1) make polypropylene film as theca interna 5 and/or theca externa 1 by multi-layer co-extruded blown film or casting technique, theca interna 5 all makes by coextrusion film blowing or curtain coating with theca externa 1;
(2) extrude compound by individual layer or double-layer coextrusion goes out technology bonding theca interna 5 and aluminium foil barrier layer 3;
(3) extrude compound by individual layer or double-layer coextrusion goes out semi-finished product and the theca externa 1 that technology adhesion step (2) makes; Step (2) also can be changed order with step (3);
(4) according to customer requirement composite sheet is cut into the width that the client needs, packed products.
Embodiment 2 (overall plastic composite soft tube sheet material)
As shown in Figure 2, the polypropylene aluminium composite soft tube sheet material of present embodiment is made of theca externa 1, first tack coat 2, plastic co-extrusion thin-film barrier layer 3, second tack coat 4 and theca interna 5 successively.
The concrete manufacturing process of present embodiment is as follows:
(1) make polypropylene film as theca interna 5 and/or theca externa 1 by multi-layer co-extruded blown film or casting technique, theca interna 5 all makes by coextrusion film blowing or curtain coating with theca externa 1;
(2) extrude compound by individual layer or double-layer coextrusion goes out technology bonding theca interna 5 and barrier layer 3;
(3) extrude compound by individual layer or double-layer coextrusion goes out semi-finished product and the theca externa that technology adhesion step (2) makes; Step (2) can be changed order with step (3);
(4) according to customer requirement composite sheet is cut into the width that the client needs, packed products.
Claims (5)
1. polypropylene composite soft tube sheet material, it is characterized in that: described polypropylene composite soft tube sheet material is made of theca externa, first tack coat, barrier layer, second tack coat, theca interna successively, and wherein theca externa and/or theca interna are polypropylene coextruded film layer.
2. polypropylene composite soft tube sheet material according to claim 1 is characterized in that: described barrier layer is aluminium foil or intercepts the plastic co-extrusion film.
3. polypropylene composite soft tube sheet material according to claim 2 is characterized in that: described aluminum foil thickness is 6 microns～30 microns; The thickness of described obstruct plastic co-extrusion film is 20 microns～160 microns.
4. polypropylene composite soft tube sheet material according to claim 1 is characterized in that: described polypropylene coextruded film layer is made of polyolefin layer more than three layers or three layers, and wherein one deck is a polypropylene layer at least.
5. polypropylene composite soft tube sheet material according to claim 1 is characterized in that: described polypropylene coextruded film layer is made of polyolefin layer more than three layers or three layers, and the gross thickness of film is 40 microns～150 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920053977U CN201390004Y (en) | 2009-04-03 | 2009-04-03 | Polypropylene composite hose sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920053977U CN201390004Y (en) | 2009-04-03 | 2009-04-03 | Polypropylene composite hose sheet material |
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| Publication Number | Publication Date |
|---|---|
| CN201390004Y true CN201390004Y (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920053977U Expired - Fee Related CN201390004Y (en) | 2009-04-03 | 2009-04-03 | Polypropylene composite hose sheet material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424176A (en) * | 2011-08-19 | 2012-04-25 | 武汉华丽生物材料有限公司 | Package hose and preparation method thereof |
| CN104476848A (en) * | 2014-11-18 | 2015-04-01 | 常熟市天娇塑业有限公司 | High-impact polyethylene composite sheet |
| CN107757032A (en) * | 2017-11-02 | 2018-03-06 | 上海紫江新材料科技有限公司 | A kind of ultrathin aluminum plastic film polypropylene screen and preparation method thereof |
| CN108116000A (en) * | 2016-11-28 | 2018-06-05 | 爱索尔（广州）包装有限公司 | A kind of low adsorption composite sheet for product packaging |
| CN109823693A (en) * | 2018-12-26 | 2019-05-31 | 江阴申隆包装材料有限公司 | A kind of foaming composite sheet and its preparation process |
| CN113696582A (en) * | 2021-09-06 | 2021-11-26 | 东莞市博晨塑料科技有限公司 | High-strength corrosion-resistant co-extruded film and preparation method thereof |
| CN114474926A (en) * | 2021-12-29 | 2022-05-13 | 深圳市力合科创股份有限公司 | Composite plastic hose |
| CN115320197A (en) * | 2022-06-21 | 2022-11-11 | 江阴宝柏新型包装材料有限公司 | Inner printing aluminum-plastic sheet and preparation method thereof |
| CN115635752A (en) * | 2022-10-25 | 2023-01-24 | 中山超分子新材料有限公司 | Skin-feel decorative film applied to office furniture and production process thereof |
-
2009
- 2009-04-03 CN CN200920053977U patent/CN201390004Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424176A (en) * | 2011-08-19 | 2012-04-25 | 武汉华丽生物材料有限公司 | Package hose and preparation method thereof |
| CN104476848A (en) * | 2014-11-18 | 2015-04-01 | 常熟市天娇塑业有限公司 | High-impact polyethylene composite sheet |
| CN108116000A (en) * | 2016-11-28 | 2018-06-05 | 爱索尔（广州）包装有限公司 | A kind of low adsorption composite sheet for product packaging |
| CN108116000B (en) * | 2016-11-28 | 2024-04-05 | 爱索尔（广州）包装有限公司 | Low-adsorption composite sheet for product packaging |
| CN107757032A (en) * | 2017-11-02 | 2018-03-06 | 上海紫江新材料科技有限公司 | A kind of ultrathin aluminum plastic film polypropylene screen and preparation method thereof |
| CN109823693A (en) * | 2018-12-26 | 2019-05-31 | 江阴申隆包装材料有限公司 | A kind of foaming composite sheet and its preparation process |
| CN113696582A (en) * | 2021-09-06 | 2021-11-26 | 东莞市博晨塑料科技有限公司 | High-strength corrosion-resistant co-extruded film and preparation method thereof |
| CN114474926A (en) * | 2021-12-29 | 2022-05-13 | 深圳市力合科创股份有限公司 | Composite plastic hose |
| CN115320197A (en) * | 2022-06-21 | 2022-11-11 | 江阴宝柏新型包装材料有限公司 | Inner printing aluminum-plastic sheet and preparation method thereof |
| CN115635752A (en) * | 2022-10-25 | 2023-01-24 | 中山超分子新材料有限公司 | Skin-feel decorative film applied to office furniture and production process thereof |
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Legal Events
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| 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: 20100127 Termination date: 20170403 |
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| CF01 | Termination of patent right due to non-payment of annual fee |