CN101066623A - Process and apparatus for producing packing plastic material - Google Patents
Process and apparatus for producing packing plastic material Download PDFInfo
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- CN101066623A CN101066623A CN 200710027998 CN200710027998A CN101066623A CN 101066623 A CN101066623 A CN 101066623A CN 200710027998 CN200710027998 CN 200710027998 CN 200710027998 A CN200710027998 A CN 200710027998A CN 101066623 A CN101066623 A CN 101066623A
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Abstract
The present invention discloses process and apparatus for producing packing plastic material. The process includes the following steps: feeding material through several feed ports including feeding adhesive resin material in the inner layer feed port, melting and blowing to produce film bubble, cooling, drawing to form two sheets of film, hot pressing, and cutting and winding. Compared with available technology, the present invention has the advantages of low production cost, simple produce process, high material homogeneity, high compounding strength and rich colors.
Description
Technical field
The present invention relates to a kind of production technology and equipment of production technology and equipment, particularly a kind of packing plastic material of packaging material.
Background technology
At present, the technology of making the plastic flexible pipe packaging film mainly contains two kinds: the one, and that generally uses in cosmetic package at present extrudes flexible pipe, by squeezing the disposable extruding pipe material that obtains of tube apparatus; The 2nd, be used in coextrusion on toothpaste packing and the part medicine packing compound more than five layers plastic-aluminum or mould composite membrane, mainly be to adopt the laminated plastics film compound or carry out compound with aluminium foil.The former is because one-shot forming, used resin is polyethylene or polypropylene, the tubing that makes does not have barrier, and expressing technique more complicated, the tubing of extruding exists thickness evenness not good, shortcomings such as processing cost height, and also extruding pipe material can only adopt the mode of trans-printing, be difficult to printed patterns fineness, levels are rich, the picture and text that color is saturated.The latter's technology must be to obtain various plastic foils by three layers or multi-layer co-extruded blown film equipment blown film, adopt then extrude compound, dry type is compound or wet type is compound which floor plastic foil is compounded to form sheet material, perhaps obtains plastic-aluminum combined sheet material with aluminium foil and each layer plastic foil are compound.This mode requires three to four road technologies just to finish the making of sheet material, complex procedures, and cause problems such as yield rate is low, combined strength bination is not enough, bad order easily.
Summary of the invention
The objective of the invention is to remedy the deficiency of existing manufacturing process, the production technology of provide that a kind of production cost is low, technology simple, material good evenness, combined strength bination height, material color being enriched stratified packing plastic material.
A kind of production technology of packing plastic material is characterized in that, may further comprise the steps:
(1), and throws in the tackifying resin material at the charging aperture of associated membrane bubble internal layer by some throat-fed;
(2) fusion and inflation produced film bubble;
(3) cooling film bubble;
(4) traction obtains by relative two films that form of film bubble internal layer;
(5) two films are carried out hot pressing; Layer mutually close between these two films is aforementioned tackifying resin material layer, and the tackifying resin material layer makes after the hot pressing combined strength bination of two films higher;
(6) splitting winding.
Described two films being carried out hot pressing, is simultaneously to its heating pressurization outside duplicature.
A kind of production equipment of implementing a kind of packing plastic material of said method, it comprises multi-layer co-extruded blown film equipment, this equipment is provided with extruding part, fusion inflation part, cooling segment, man-like shelf and the wrap-up that is linked in sequence, it is characterized in that, have a hot pressing roller to be located between man-like shelf and the wrap-up, and the hot pressing roller is near man-like shelf.
Described multi-layer co-extruded blown film equipment be on blown film equipment, the hot pressing roller is positioned at man-like shelf top.Advantage of the present invention is:
1. the present invention proposes a kind of existing technology of making overall plastic sheet material that is different from fully, only need a procedure just can process success.Only need on a multi-layer co-extruded equipment, produce, go out blown film equipment, five-layer co-squeezing and go out blown film equipment, seven-layer co-extrusion and go out blown film equipment, nine layers of coextrusion blown film equipment, eleventh floor coextrusion blown film equipment, ten and three-layer co-extrudedly go out blown film equipment etc. as three-layer co-extruded.Both can save man-hour, reduce the waste in the process again, greatly reduce cost.
2. processing technology of the present invention in process, can be added the look mother of different colours as required in resin, reach different visual effects, can be used for the packing of flexible pipes such as cosmetics, toothpaste, paste medicine and food.
3. described novel process can selectively add barrier resin in the intermediate layer of blown film according to the requirement difference of packing content thing, can change kind, content and the placement level of barrier resin as required.
4. described sheet-material package is overall plastic packing owing to adopt, and more helps reclaiming, and for environmental protection bigger advantage is arranged.
5. can be easy to realize regulating sheet thickness, can process the sheet material of thickness in the 200-600 micrometer range as required.
6. described novel process is glued together owing to adopt thermal bonding process that internal layer is had close-burning film, and its combined strength bination can reach more than the 8N/15mm, is much higher than the combined strength bination of other complex method.
7. because the sheet material that adopts folder bubble technology to make has complete symmetrical structure, and the stress release in this complete symmetrical structure respective material is more abundant, for further printing, it is very useful to improve printing precision.
8. because the sheet material that adopts folder bubble technology to make has complete symmetrical structure, for the sheet structure that adds barrier material, barrier layer wherein is made of the two-layer of symmetry, as Fig. 3, being distributed in the sheet material of barrier layer symmetry, even total the identical situation of barrier layer thickness under, being divided into the two-layer structure that is put in both sides should have bigger advantage aspect tamper-proof, even there is the barrier material of a side to be destroyed, the barrier material of another layer can also continue to play effect.
9. sheet material of the present invention has good flexibility (adaptability) of operation, and the product of this sheet material adopts the supply of material of film volume, can print and tubulation on existing sheet material printing machine.Tubulation mode and present tubulation mode are identical, and heat-sealable way is the fusion involution.
Description of drawings
Fig. 1 technological process of production figure of the present invention
The existing multi-layer co-extruded blown film equipment of Fig. 2
The structural representation of Fig. 3 a kind of packing plastic material production equipment of the present invention
Fig. 4 is according to the embodiment of the invention 1 obtained packing plastic material layer structural representation
Fig. 5 is according to the embodiment of the invention 2 obtained packing plastic material layer structural representation
The specific embodiment
Embodiment 1
As shown in Figure 3, do not have the barrier flaps material, process by the three-layer co-extruded inflation film manufacturing machine of setting up the hot pressing roller by six layers of co-extrusion that method of the present invention is produced.
Concrete manufacturing process is as follows:
As shown in figures 1 and 3, in existing three-layer co-extruded blown film equipment (as Fig. 2), required various resins and raw material are entered screw rod 1 according to the proportioning of setting after by the hopper weighing of automatic gauge, blow out by die head through behind the heating and melting, the film bubble 2 that blows out forms two co-extrusion trilamellar membranes that internal layer is relative through man-like shelf 3 tractions.Thereafter, make two relative trilamellar membranes of internal layer pass through hot pressing roller 4 simultaneously, the temperature of hot pressing roller 4 is 50 ℃, guarantees good combined strength bination between the adhesive layer, smooth six tunics that obtain after roller smooths by two bonding membrane structure symmetries that form of co-extrusion trilamellar membrane then, the splitting winding moulding.Control thickness is even, and the deviation of thickness guarantees＜3%.Each layer thickness can be regulated by changing screw speed in the blown film, and in three layers of screw rod, inner layer resin is EVA, other two-layer common polythene resin particle that all adds, and prepared six synusia materials do not have very strong barrier.The general thickness of material is 80 microns.
As shown in Figure 4, do not have the barrier flaps material, process by the seven-layer co-extrusion inflation film manufacturing machine of setting up the hot pressing roller by 14 layers of co-extrusion that method of the present invention is produced.
Concrete manufacturing process is as follows:
As shown in figures 1 and 3, in existing seven-layer co-extrusion blown film equipment (as Fig. 2), required various resins and raw material are entered screw rod 1 according to the proportioning of setting after by the hopper weighing of automatic gauge, blow out by die head through behind the heating and melting, the film bubble 2 that blows out forms two co-extrusion seven tunics that internal layer is relative through man-like shelf 3 tractions.Thereafter, make two seven relative tunics of internal layer pass through hot pressing roller 4 simultaneously, the temperature of hot pressing roller 4 is 80 ℃, guarantees good combined strength bination between the adhesive layer, smooth 14 tunics that obtain after roller smooths by two bonding membrane structure symmetries that form of co-extrusion seven tunics then, the splitting winding moulding.Control thickness is even, and the deviation of thickness guarantees＜3%.Each layer thickness can be regulated by changing screw speed in the blown film, in seven layers of screw rod, inner layer resin is EMAA, add resin EVOH with strong barrier in the intermediate layer, binding agent Tie resin is then added in its both sides, and other each layer all adds the common polythene resin particle, and prepared 14 synusia materials have very strong barrier, and the barrier layer symmetry arrangement is in the middle of material, and the general thickness of sheet material is 200 microns.
Do not have the barrier flaps material by 26 layers of co-extrusion that method of the present invention is produced, process by the ten three-layer co-extruded inflation film manufacturing machines of setting up the hot pressing roller.
Concrete manufacturing process is as follows:
As shown in figures 1 and 3, in existing ten three-layer co-extruded blown film equipment (as Fig. 2), required various resins and raw material are entered screw rod 1 according to the proportioning of setting after by the hopper weighing of automatic gauge, blow out by die head through behind the heating and melting, the film bubble 2 that blows out forms two co-extrusion ten trilamellar membranes that internal layer is relative through man-like shelf 3 tractions.Thereafter, make two ten relative trilamellar membranes of internal layer pass through hot pressing roller 4 simultaneously, the temperature of hot pressing roller 4 is 100 ℃, guarantees good combined strength bination between the adhesive layer, smooth 26 tunics that obtain after roller smooths by two bonding membrane structure symmetries that form of co-extrusion ten trilamellar membranes then, the splitting winding moulding.Control thickness is even, and the deviation of thickness guarantees＜3%.Each layer thickness can be regulated by changing screw speed in the blown film, in 13 layers of screw rod, inner layer resin is EVA, add resin EVOH with strong barrier in the intermediate layer, then add binding agent Tie resin between barrier layer and the common layer, other each layer all adds the common polythene resin particle, and prepared 26 synusia materials have very strong barrier, and the barrier layer symmetry arrangement is in the middle of material, and the general thickness of sheet material is 500 microns.
Claims (4)
1, a kind of production technology of packing plastic material is characterized in that, may further comprise the steps:
(1), and throws in the tackifying resin material at the charging aperture of associated membrane bubble internal layer by some throat-fed;
(2) fusion and inflation produced film bubble;
(3) cooling film bubble;
(4) traction obtains by relative two films that form of film bubble internal layer;
(5) two films are carried out hot pressing;
(6) splitting winding.
2, the production technology of a kind of packing plastic material as claimed in claim 1 is characterized in that, described two films is carried out hot pressing, is simultaneously to its heating pressurization outside duplicature.
3, a kind of production equipment of implementing a kind of packing plastic material of the described method of claim 1, it comprises multi-layer co-extruded blown film equipment, this equipment is provided with extruding part, fusion inflation part, cooling segment, man-like shelf and the wrap-up that is linked in sequence, it is characterized in that, have a hot pressing roller to be located between man-like shelf and the wrap-up, and the hot pressing roller is near man-like shelf.
4, the production equipment of a kind of packing plastic material as claimed in claim 3 is characterized in that, described multi-layer co-extruded blown film equipment be on blown film equipment, the hot pressing roller is positioned at man-like shelf top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710027998 CN101066623A (en) | 2007-05-11 | 2007-05-11 | Process and apparatus for producing packing plastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710027998 CN101066623A (en) | 2007-05-11 | 2007-05-11 | Process and apparatus for producing packing plastic material |
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| CN101066623A true CN101066623A (en) | 2007-11-07 |
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| CN 200710027998 Pending CN101066623A (en) | 2007-05-11 | 2007-05-11 | Process and apparatus for producing packing plastic material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116000A (en) * | 2010-12-03 | 2011-07-06 | 崔江 | Combined processing equipment used for producing stone paper |
| CN102514189A (en) * | 2011-12-15 | 2012-06-27 | 吴江市英力达塑料包装有限公司 | Plastic film blowing machine |
| CN103213364A (en) * | 2013-03-28 | 2013-07-24 | 江苏中金玛泰医药包装有限公司 | Composite membrane for all-plastic lithium battery |
| CN106113476A (en) * | 2016-06-23 | 2016-11-16 | 浙江汇锋薄膜科技有限公司 | A kind of PVC inflation film manufacturing machine |
| CN108638579A (en) * | 2018-06-26 | 2018-10-12 | 泉州市泉港顶新日用品有限公司 | A kind of bag making system |
| CN113524789A (en) * | 2021-08-10 | 2021-10-22 | 许仕明 | Processing technology of degradable plastic bag |
-
2007
- 2007-05-11 CN CN 200710027998 patent/CN101066623A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116000A (en) * | 2010-12-03 | 2011-07-06 | 崔江 | Combined processing equipment used for producing stone paper |
| CN102116000B (en) * | 2010-12-03 | 2016-04-06 | 佛山市正大天地环保材料有限公司 | A kind of Combined machining equipment for the production of stone paper |
| CN102514189A (en) * | 2011-12-15 | 2012-06-27 | 吴江市英力达塑料包装有限公司 | Plastic film blowing machine |
| CN103213364A (en) * | 2013-03-28 | 2013-07-24 | 江苏中金玛泰医药包装有限公司 | Composite membrane for all-plastic lithium battery |
| CN103213364B (en) * | 2013-03-28 | 2016-01-13 | 江苏中金玛泰医药包装有限公司 | Composite membrane for all-plastic lithium battery |
| CN106113476A (en) * | 2016-06-23 | 2016-11-16 | 浙江汇锋薄膜科技有限公司 | A kind of PVC inflation film manufacturing machine |
| CN108638579A (en) * | 2018-06-26 | 2018-10-12 | 泉州市泉港顶新日用品有限公司 | A kind of bag making system |
| CN113524789A (en) * | 2021-08-10 | 2021-10-22 | 许仕明 | Processing technology of degradable plastic bag |
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