CN101376440B - packing soft tube - Google Patents
packing soft tube Download PDFInfo
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- CN101376440B CN101376440B CN2008102166063A CN200810216606A CN101376440B CN 101376440 B CN101376440 B CN 101376440B CN 2008102166063 A CN2008102166063 A CN 2008102166063A CN 200810216606 A CN200810216606 A CN 200810216606A CN 101376440 B CN101376440 B CN 101376440B
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- polypropylene
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- B29C47/92—
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- Laminated Bodies (AREA)
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a packaging hose. The wall of the packaging hose adopts a two-five layer structure made of raw material containing polypropylene and produced through extrusion process, and the polypropylene adopts the polypropylene with 1.4 melt index. The hose has the performances of high hardness, high transparency and high barrier, is a significant breakthrough in the development of the hose co-extrusion technology, and provides a new option for the customer on the pack designing of the packaging hose.
Description
Technical field
The present invention relates to a kind of packaging tube and production method thereof.
Background technology
The thin-walled package flexible pipe that is used at present product such as cosmetics in the world all is to adopt polyethylene (PE) material, what the transparent wrapper flexible pipe often adopted is the raw material look flexible pipe that high density polyethylene (HDPE) (HDPE) material is made, the HDPE raw material itself is the white opaque characteristic of mist, makes the high transparent effect of client's designing requirement to embody.The thin-walled package flexible pipe does not adopt polypropylene (PP) material at present, because the fusion index of polypropylene material in the past is in that cause more than 2.0 can't the trombone slide moulding, even employing injection mo(u)lding, because of wall thickness is too thin more crisp hard, can't form the packing that pipe shape thin-wall product is applied to products such as cosmetics.
Summary of the invention
The objective of the invention is at existing transparent wrapper flexible pipe above shortcomings, the packaging tube and the production method thereof of a kind of tool high hardness, high transparent, high-barrier effect is provided.
The object of the present invention is achieved like this: packaging tube of the present invention, its tube wall are by including 2～5 layers of structure that polyacrylic raw material adopts expressing technique to produce, and it is 1.4 polypropylene that described polypropylene adopts fusion index.
When the tube wall of packaging tube of the present invention was single layer structure, its raw material was polypropylene or polypropylene and poly blend.In polypropylene and the poly blend, polyacrylic weight percentage was generally for 20～100% (not comprising 100%).
When the tube wall of packaging tube of the present invention is interior outer double-layer structure, the double-ply raw material divides extruder by the coextrusion of same moulding mixed gear end, wherein the raw material of one deck is polypropylene or polypropylene and poly blend, and another layer is polypropylene or polypropylene and poly blend or polyethylene.
When the tube wall of packaging tube of the present invention is 3～5 layers of structure, the raw material of each layer divides extruder by the coextrusion of same moulding mixed gear end, the raw material that wherein has one deck at least is polypropylene or polypropylene and poly blend, the raw material of all the other each layers is polypropylene or polyethylene or adhesives or polypropylene and poly blend, and adhesive phase and adhesive phase is not adjacent, adhesive phase is not positioned at outermost layer or innermost layer.
What the adhesives among the present invention was commonly used is anhydride modified linear low density of polyethylene poly-mer (ADMER).
Polyethylene among the present invention preferably adopts low density polyethylene (LDPE), because the low density polyethylene (LDPE) raw material is transparent, when in the flexible pipe that employing polypropylene and poly blend are made or the flexible pipe of multiple-structure polyethylene layer being arranged, it is transparent that flexible pipe remains, because in the raw material polypropylene is arranged, the high hardness and the high barrier of flexible pipe are guaranteed simultaneously.
The thickness of pipe of packaging tube of the present invention is generally 0.2mm～1.0mm.
A kind of method of producing the packaging tube of above-mentioned high hardness high transparency high separation, the tube wall of described flexible pipe adopts expressing technique to produce by including polyacrylic raw material, and described polypropylene employing fusion index is 0.5～2.0 polypropylene.
In expressing technique, the layers of material of tube wall divides extruder by the coextrusion of same moulding mixed gear end, the forming temperature of polyethylene layer (or extruder temperature) adopts prior art, it is 140 ℃～190 ℃, polypropylene or polypropylene and poly blend are 190 ℃～230 ℃ at the forming temperature of extruder, the vacuum pressure of extrusion molding is-0.003～-0.001MPa.
Technique effect of the present invention is: contain polypropylene in the material of flexible pipe tube wall of the present invention, polypropylene itself has the characteristic of high transparent, high hardness, high-barrier, makes flexible pipe of the present invention have performances such as high transparent, high hardness, high-barrier.Flexible pipe tube wall of the present invention is individual layer, bilayer or multilayer, according to the client difference of thickness, barrier, rigidity, diaphaneity is required to carry out the selection of various combination, for the client provides multiple choices.The present invention adopts expressing technique to produce packaging tube pp material first, is the important breakthrough of flexible pipe co-extrusion technology development, selects for the client provides a brand new in the package design of packaging tube.The present invention is particularly useful for the packing of cosmetics.
Description of drawings
Fig. 1 is the constructional drawing of one section tube wall among the embodiment one.
Fig. 2 is the figure of the structure of one section tube wall among the embodiment two.
Fig. 3 is the figure of the structure of one section tube wall among the embodiment three.
Fig. 4 is the figure of the structure of one section tube wall among the embodiment four.
Fig. 5 is the figure of the structure of one section tube wall among the embodiment five.
Fig. 6 is the figure of the structure of one section tube wall among the embodiment six.
Fig. 7 is the figure of the structure of one section tube wall among the embodiment seven.
Fig. 8 is the constructional drawing of the flexible pipe of the embodiment of the invention.
The specific embodiment
The structure of the packaging tube of embodiment one to embodiment seven is referring to Fig. 8, and its integral structure is identical with the current packaging flexible pipe, and difference is the structure of tube wall and/or the material of flexible pipe.Below narration respectively.
Referring to Fig. 1 and Fig. 2, the tube wall 1 of embodiment one and the tube wall 2 of embodiment two are single layer structure, but material difference, tube wall 1 material of embodiment one is a polypropylene, adopt expressing technique to produce by polypropylene, tube wall 2 materials of embodiment two are polypropylene and poly blend, and wherein polyacrylic weight percentage is 70% (following polypropylene is all identical with poly blend), and polypropylene mixes the back in proportion with polyethylene and extruded jointly by same extruder.
Referring to Fig. 3 to Fig. 6, the tube wall of the flexible pipe of embodiment three to embodiment six is three-decker, but the internal layer 5 of tube wall and outer 4 is polypropylene layer among material difference: the embodiment three, and interlayer 3 is an adhesive phase; The internal layer 8 of tube wall and outer 7 is polypropylene layer among the embodiment four, and interlayer is a polyethylene layer 6; The internal layer 11 of tube wall is a polypropylene layer among the embodiment five, and outer 10 is polyethylene layer, and interlayer 9 is an adhesive phase; The internal layer 14 of tube wall is a polyethylene layer among the embodiment six, and outer 12 is polypropylene layer, and interlayer 13 is an adhesive phase.Among above-mentioned each embodiment, three layers of raw material of tube wall divide extruder by the coextrusion of same moulding mixed gear end.
Referring to Fig. 7, the tube wall of the flexible pipe of embodiment seven is a five-layer structure, innermost layer 19 and outermost layer 15 are polypropylene layer, interlayer 17 is a polyethylene layer, the raw material that is respectively 16, five layers of adhesive phases 18, adhesive phase between innermost layer 19, outermost layer 15 and the interlayer 17 divides extruder by the coextrusion of same moulding mixed gear end.
Polypropylene in the foregoing description is available from Hongkong King Pacific (International) Limited, and model is BSPP01, and its fusion index is 1.4, and it is 0.5～2.0 polypropylene that the polypropylene among the present invention can adopt fusion index.Polyethylene in the foregoing description is a low density polyethylene (LDPE), available from Maoming petrochemical industry; Adhesives adopts anhydride modified linear low density of polyethylene poly-mer (ADMER).
The production process of tube wall is as follows in the foregoing description:
Adopt the MULTILAYER COMPOSITE flexible pipe bench EDCH-08-05-M of single screw extrusion machine.Detailed process is as follows:
1, prepares every layer of required raw material of tube wall.
2, confected materials is poured into each self-corresponding extruder, be heated to highlyer 20 ℃, start screw rod than normal forming temperature.The normal forming temperature of polyethylene layer is 140 ℃～190 ℃, and the normal forming temperature of polypropylene layer or polypropylene and poly blend is 190 ℃～230 ℃.
3, the raw material after heating enters same moulding mixed gear end behind extruder separately, flows out the fluid that is hollow tubular from head.After fluid to be observed mixed, the temperature that reduces each extruder was to normal forming temperature.
4, with fluid draw to vacuum pressure be-0.003～-vacuum water tank of 0.001MPa, after vacuum forming, cross 10 ℃～20 ℃ cold water cooling, be cut into again need length, promptly get the flexible pipe tube wall.
With above-mentioned flexible pipe tube wall and the flexible pipe tube head that adopts prior art to make, adopt existing injection moulding process to link into an integrated entity, promptly get flexible pipe.
Flexible pipe thickness of pipe of the present invention is generally 0.2mm～1.0mm.Under condition of equivalent thickness, the rigidity of flexible pipe of the present invention is better, when 0.2～0.4mm thickness, and the very easily distortion of PE pipe, flexible pipe of the present invention does not then have this problem.
Polypropylene among the present invention can be a virgin pp, also can be the polypropylene that has added Masterbatch, and when being virgin pp, flexible pipe is transparent, and when when having added the polypropylene of Masterbatch, flexible pipe presents colour.
Claims (1)
1. packaging tube is characterized in that: its tube wall is by including 2～5 layers of structure that polyacrylic raw material adopts expressing technique to produce, and it is 1.4 polypropylene that described polypropylene adopts fusion index; When described tube wall was interior outer double-layer structure, wherein the raw material of one deck was polypropylene or polypropylene and poly blend, and another layer is polypropylene or polypropylene and poly blend or polyethylene; When described tube wall is 3～5 layers of structure, the raw material that wherein has one deck at least is polypropylene or polypropylene and poly blend, the raw material of all the other each layers is polypropylene or polyethylene or adhesives or polypropylene and poly blend, and adhesive phase and adhesive phase are non-conterminous, and adhesive phase is not positioned at outermost layer or innermost layer; Described polyethylene is a low density polyethylene (LDPE); In polypropylene and poly blend, polyacrylic weight percentage is 20～100%; Described adhesives adopts anhydride modified linear low density of polyethylene poly-mer; Described thickness of pipe is 0.2mm～1.0mm; In described expressing technique, the layers of material of tube wall divides extruder by the coextrusion of same moulding mixed gear end, polypropylene or polypropylene and poly blend are 190 ℃～230 ℃ at the forming temperature of extruder, the vacuum pressure of extrusion molding is-0.003～-0.001MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102166063A CN101376440B (en) | 2008-09-26 | 2008-09-26 | packing soft tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102166063A CN101376440B (en) | 2008-09-26 | 2008-09-26 | packing soft tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101376440A CN101376440A (en) | 2009-03-04 |
| CN101376440B true CN101376440B (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102166063A Active CN101376440B (en) | 2008-09-26 | 2008-09-26 | packing soft tube |
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| Country | Link |
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| CN (1) | CN101376440B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761707A (en) * | 2009-12-28 | 2010-06-30 | 上海通产丽星包装材料有限公司 | Coextrusion composite polypropylene soft pipe and production method |
| 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 |
| CN103292071A (en) * | 2013-07-04 | 2013-09-11 | 上海三樱包装材料有限公司 | High-transparency compound hose and manufacturing method thereof |
| CN104528162A (en) * | 2014-11-06 | 2015-04-22 | 安徽瑞研新材料技术研究院有限公司 | Environmental-friendly nano-modified degradable material and preparation method thereof |
| CN108501455B (en) * | 2018-02-05 | 2020-12-25 | 广州美泰包装科技有限公司 | PE/PP double-color shao-dermatoglyph hose and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675298A (en) * | 2002-08-12 | 2005-09-28 | 埃克森美孚化学专利公司 | Plasticized polyolefin compositions |
| CN1995124A (en) * | 2006-12-28 | 2007-07-11 | 深圳市科聚新材料有限公司 | High tenacious polypropylene material for manufacturing central conditioner air-discharge hose and its preparation method |
-
2008
- 2008-09-26 CN CN2008102166063A patent/CN101376440B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675298A (en) * | 2002-08-12 | 2005-09-28 | 埃克森美孚化学专利公司 | Plasticized polyolefin compositions |
| CN1995124A (en) * | 2006-12-28 | 2007-07-11 | 深圳市科聚新材料有限公司 | High tenacious polypropylene material for manufacturing central conditioner air-discharge hose and its preparation method |
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| Publication number | Publication date |
|---|---|
| CN101376440A (en) | 2009-03-04 |
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Effective date of registration: 20170227 Address after: Jiangsu Panlong road 215000 city of Suzhou province Wujiang economic and Technological Development Zone No. 358 Patentee after: Suzhou beauty Star Packaging Technology Co. Ltd. Address before: 518112 Buji, Guangdong, Bantian, No. five and Avenue, No. 49, No. Patentee before: Shenzhen Beauty Star Co., Ltd. |