CN1258596A - Composite color film and its making process and specific mold - Google Patents
Composite color film and its making process and specific mold Download PDFInfo
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- CN1258596A CN1258596A CN 98122173 CN98122173A CN1258596A CN 1258596 A CN1258596 A CN 1258596A CN 98122173 CN98122173 CN 98122173 CN 98122173 A CN98122173 A CN 98122173A CN 1258596 A CN1258596 A CN 1258596A
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Abstract
The composite color film consists of single layer color-less polyethylene film part and composite color film part comprising color-less polyethylene film and color film with added color forming mother material and different assistant. It is made through simultaneous extrusion of two extruders, one for color-less polyethylene film and the other for color film, which is embedded into the surface layer of the color-less film by the special extruding die. The composite color film has high tear strength and may be used as mulching film and packing film.
Description
The present invention relates to a kind of colored ribbon film, be applicable to covering with ground sheeting.The extruder that the invention still further relates to the manufacture method of this colored ribbon film and this method is die head especially used.
In recent years, along with the deep development of white agriculture, the production of various mulch films, colored ribbon film was also risen rapidly, simultaneously, had also promoted the innovation that molding machine is produced.The colored ribbon film is a kind of plastic sheeting for farm use of recent application in agricultural production, be by polyethylene colorless film and the spaced plastic sheeting for farm use of the Coloured film that has added color masterbatch and different auxiliary agents, the position of spaced arrangement, width and the different auxiliary agents that added can be decided by application purpose, as drill seeding potato, furrow are wide 0.55 meter, then can require polyethylene colorless film film bandwidth 0.1-0.15 rice, add the Coloured film bandwidth 0.40-0.45 rice of color masterbatch and herbicide, when using the colored ribbon film, polyethylene colorless film band is aimed at shop, potato planting ridge down, the Coloured film band that adds color masterbatch and herbicide is aimed between the potato planting ridge, grass between the potato ridge can not be grown, be beneficial to the growth of potato.At present the colored ribbon film that uses is that edge by the Coloured film band of polyethylene colorless film band and interpolation color masterbatch and different auxiliary agents joins and forms, there is not composite surface, its method of joining is by the two extruders co-extrusion, imports the annular port mould through corresponding arcuation runner, its edge is gluedd joint form.The shortcoming of this colored ribbon film is: 1. polyethylene colorless film band is low with the edge weld tearing toughness of the Coloured film band that adds color masterbatch and different auxiliary agents, easily tears; 2. the Coloured film band that adds color masterbatch and different auxiliary agents is consistent with polyethylene colorless film tape thickness, because auxiliary agent and the color masterbatch expense used are higher, so production cost is higher.
The object of the present invention is to provide a kind of polyethylene colorless film band with the Coloured film band weld tearing toughness height that adds color masterbatch and different auxiliary agents, be difficult for tearing, and the compound colored ribbon film that can reduce production costs by the thickness that reduces the Coloured film that adds color masterbatch and different auxiliary agents, for this reason, it is die head especially used that the present invention also will provide a kind of method and extruder of making this colored ribbon film.
For achieving the above object, the present invention strengthens the splicing face of polyethylene colorless film with the Coloured film that has added color masterbatch and different auxiliary agents, be that the cementing position is except that having the edge of splicing, also has splicing face, simultaneously, reduce the consumption of color masterbatch and different auxiliary agents with the thickness of the Coloured film that reduces to add color masterbatch and different auxiliary agents, thereby reduce production costs, so this colored ribbon film is made of the Coloured film of polyethylene colorless film, interpolation color masterbatch and different auxiliary agents, the Coloured film that adds color masterbatch and different auxiliary agents embeds in the top layer of polyethylene colorless film; The Coloured film that adds color masterbatch and different auxiliary agents can embed in the endosexine of polyethylene colorless film or in the extexine, also can be provided with according to bar number, position, width, the thickness of purposes requirement.
The manufacture method of the colored ribbon film that the present invention proposes comprises the extrusion-blown modling of polyethylene colorless film and extruding of the Coloured film that adds color masterbatch and different auxiliary agents, the extrusion-blown modling of said polyethylene colorless film be with an extruder with PEF material melt by corresponding ring-type extrusion channel, be blow molded into the uniform cylindrical thin-film of wall thickness through the annular port mould, extruding of the Coloured film of said interpolation color masterbatch and different auxiliary agents to the PEF compound melt that adds color masterbatch and different auxiliary agents being imported the Coloured film that is extruded into banded interpolation color masterbatch and different auxiliary agents in the same annular port mould by corresponding tubular extruded runner with another extruder, when an extruder is with PEF material melt-blown polyethylene colorless film, to add the PEF compound melt of color masterbatch and different auxiliary agents with another extruder by corresponding tubular extruded runner, process imports same annular port mould with flat the chewing that tubular extruded runner upper end matches, under the fixed thick extruding of annular port mould, be blow molded into arcuation bar shaped color band film, and embed in the top layer of polyethylene colorless film, its embedded part, be seen as coloured compound tunic band on the whole, thereby the compound colored ribbon film that the compound tunic band that has formed the polyethylene colorless film band of individual layer and the Coloured film that has added color masterbatch and different auxiliary agents is spaced, the bar number of the Coloured film of interpolation color masterbatch and different auxiliary agents and position are by corresponding tubular extruded runner, flat number and the position and deciding of chewing, add the Coloured film of color masterbatch and different auxiliary agents and decide by corresponding extruder rotating speed and the flat width of chewing, decide by corresponding extruder rotating speed at the embedding thickness of polyethylene colorless film at the embedding width of polyethylene colorless film; Add the PEF compound melt of color masterbatch and different auxiliary agents, flat chewing by corresponding tubular extruded runner upper end can from inside to outside import the annular port mould, the Coloured film that adds color masterbatch and different auxiliary agents is embedded in the endosexine of polyethylene colorless film, also can import the annular port mould from outside to inside, the Coloured film that adds color masterbatch and different auxiliary agents is embedded in the extexine of polyethylene colorless film.
For the Coloured film that adds color masterbatch and different auxiliary agents is embedded in the top layer of polyethylene colorless film, above-mentioned manufacture method will adopt extruder die head especially used, this extruder is die head especially used to be made of mould main body, external mold, internal mold, conveyor screw, adjustment ring, ring-type extrusion channel, annular port mould, fork has been set up tubular extruded runner on the mould main body, has set up flat the chewing that tubular extruded runner imports the annular port mould again in the bottom of external mold; Flat the chewing that tubular extruded runner imports the annular port mould can from inside to outside import, and also can import from outside to inside, and tubular extruded runner and flat chewing can be established a plurality ofly, and the position can require decide according to purposes.
Advantage of the present invention is: compare with the colored ribbon film of present application, owing to add the Coloured film band of color masterbatch and different auxiliary agents is to embed in the top layer of polyethylene colorless film, its splicing face not only edge glueds joint good, and add color masterbatch and different auxiliary agents the Coloured film band in the surface directly fuse on polyethylene colorless film groove inner surface, strengthened cemented surface, so increased tearing toughness, simultaneously, because the fixed thick extruding of die orifice, under the situation of whole film thickness unanimity, the Coloured film tape thickness that adds color masterbatch and different auxiliary agents is less than the polyethylene colorless film band thickness of composite portion not, this has just saved the consumption of color masterbatch and auxiliary agent, therefore, also just reduced production cost.Because extruder is die head especially used to be an overall structure, can disposablely extrude success so produce, easily operation.This colored ribbon film can be widely used in covering with ground sheeting, also can be used as packaging film.
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is compound colored ribbon film cross section cross-sectional schematic in the present invention.
Fig. 2 launches schematic diagram for compound colored ribbon film in the present invention along A-A.
Fig. 3 is the outer compound colored ribbon film cross section of the present invention cross-sectional schematic.
Fig. 4 launches schematic diagram for the outer compound colored ribbon film of the present invention along A-A.
Fig. 5 is compound die head cross-sectional schematic in the present invention.
Fig. 6 is the outer compound die head cross-sectional schematic of the present invention.
Fig. 7 is a die head vertical view of the present invention.
Fig. 8 is compound die head mould main body vertical view in the present invention.
Fig. 1, Fig. 3 are the inside and outside compound colored ribbon film of the present invention cross section cross-sectional schematic, this colored ribbon film is made of the Coloured film 2 of polyethylene colorless film 1, interpolation color masterbatch and different auxiliary agents, polyethylene colorless film 1 is a ring-type integral body, and a plurality of grooves are arranged, the Coloured film 2 that adds color masterbatch and different auxiliary agents embeds in the groove of polyethylene colorless film 1, can embed in the outer surface groove of polyethylene colorless film 1, also can embed in the inner surface recesses of polyethylene colorless film 1.Fig. 2, Fig. 4 launch schematic diagram for inside and outside compound colored ribbon film along A-A, need launch during application to use.Fig. 5, Fig. 6 is in the present invention, the die head especially used cutaway view of outer complex extruder, by mould main body 3, external mold 4, internal mold 5, conveyor screw 6, adjust ring 7, ring-type extrusion channel 8, annular port mould 9 constitutes, on mould main body 3, set up tubular extruded runner 10 again, set up tubular extruded runner 10 the flat of remittance annular port mould 9 again in the bottom of external mold 4 and chewed 11, flat chew 11 and the upper end of tubular extruded runner 10 match, compound tense in adopting, tubular extruded runner 10 and corresponding flat 11 inside that can be located at ring-type extrusion channel 8 and annular port mould 9 of chewing, when adopting outer compound tense, tubular extruded runner 10 and accordingly flat 11 outsides that can be located at ring-type extrusion channel 8 and annular port mould 9 of chewing.
Embodiment 1
Compound colored ribbon film in producing 3 meters, and the Coloured film band of interpolation color masterbatch and different auxiliary agents is 4.As shown in Figure 2, the centre is the colourless mulch film of monolayer polyethylene when the centre is cut open, and both sides are two layers, and one deck is for adding coloured mulch film of color masterbatch and herbicide, and one deck is the colourless mulch film of polyethylene.During production, at first design die head, port mould diameter is 0.64 meter, propel the price of than being 3, flat the chewing of Coloured film remittance of adding color masterbatch and different auxiliary agents is 4, is symmetrical arranged, and the structure of die head mould main body 3 is identical substantially with the mould main body of present colored ribbon film production usefulness, but set up tubular extruded runner 10, be symmetrical arranged 4, the structure of external mold 4 is also unanimous on the whole with the external mold that uses during at present the colored ribbon film is produced, and flatly chews 11 but set up, be symmetrical arranged 4, flatly chew 11 and from inside to outside import annular port mould 9.During blowing, two extruders is extrusion molding simultaneously, and the extrusion pressure of two extruders equates, with an extruder PEF material melt is passed through ring-type extrusion channel 8, be blow molded into the uniform cylindrical thin-film of wall thickness through annular port mould 9, to add the PEF compound melt of color masterbatch and herbicide with another extruder by tubular extruded runner 10, through the flat same annular port mould 9 of 11 remittance of chewing, and under the fixed thick extruding of annular port mould 9, embed in the endosexine of polyethylene colorless film, thereby compound colored ribbon film in making, the monolayer polyethylene colorless film band quantity of this compound colored ribbon film is 4, width is 0.6 meter, one deck is the polyethylene colorless film, one deck is the compound tunic band of the Coloured film of interpolation color masterbatch and different auxiliary agents, the bar number is 4, width is 0.9 meter, and the Coloured film tape thickness that adds color masterbatch and different auxiliary agents is 1/2 of a monolayer polyethylene colorless film tape thickness.
Make 4.5 meters outer compound colored ribbon film, and the composite bed Coloured film band that adds color masterbatch and herbicide is 2, it is said to press embodiment 1, port mould diameter is 1 meter, propel the price of than being 3, on die body 3, set up tubular extruded runner 10, be symmetrical arranged 2, on external mold 4, set up and flatly chew 11, be symmetrical arranged 2, and import ring-type membrana oralis 9 from outside to inside, during blowing, two extruders is extrusion molding simultaneously, and the extrusion pressure of extruding the extruder of the polyethylene melt that adds color masterbatch and herbicide is 2 times of extruder extrusion pressure of polyethylene extrusion melt, press said method among the embodiment 1, make the polyethylene compound melt that adds color masterbatch and herbicide under the fixed thick extruding of annular port mould 9, embed in the polyethylene colorless film surface, thereby make outer compound colored ribbon film, the monolayer polyethylene colorless film band quantity of this colored ribbon film is 2, width is 3 meters, it is the polyethylene colorless film that one deck is arranged, one deck is 2 for the composite bed Coloured film film tape number that adds color masterbatch and herbicide, width is 1.5 meters, and the Coloured film tape thickness of interpolation color masterbatch and herbicide is 3/4 of a monolayer polyethylene film tape thickness.
Claims (6)
1. colored ribbon film is made of polyethylene colorless film (1), the Coloured film (2) that adds color masterbatch and different auxiliary agents, and the Coloured film (2) that it is characterized in that adding color masterbatch and different auxiliary agents embeds in the top layer of polyethylene colorless film (1).
2. colored ribbon film according to claim 1, the Coloured film (2) that it is characterized in that adding color masterbatch and different auxiliary agents can embed in the endosexine of polyethylene colorless film (1) or in the extexine, also can be provided with according to bar number, position, width, the thickness that purposes requires.
3. the manufacture method of the described colored ribbon film of claim 1, it comprises the extrusion-blown modling of polyethylene colorless film (1) and extruding of Coloured film (2) of adding color masterbatch and different auxiliary agents, the extrusion-blown modling of said polyethylene colorless film (1) be with an extruder with polyethylene material melt by corresponding ring-type extrusion channel, be blow molded into the uniform cylindrical thin-film of wall thickness through the annular port mould, extruding of the Coloured film of said interpolation color masterbatch and different auxiliary agents (2) to the polyethylene compound melt that adds color masterbatch and different auxiliary agents being imported the Coloured film (2) that same annular port mould is extruded into banded interpolation color masterbatch and different auxiliary agents by corresponding tubular extruded runner with another extruder, it is characterized in that when an extruder is with polyethylene material melt-blown polyethylene colorless film (1), to add the polyethylene compound melt of color masterbatch and different auxiliary agents with another extruder by the respective tubular extrusion channel, process imports same annular port mould with flat the chewing that tubular extruded runner upper end matches, under the fixed thick extruding of annular port mould, be blow molded into arcuation bar shaped color band film, and embed in the top layer of polyethylene colorless film (1), the bar number of the Coloured film (2) of interpolation color masterbatch and different auxiliary agents and position are by corresponding tubular extruded runner, flat number and the position and deciding of chewing, add the Coloured film (2) of color masterbatch and different auxiliary agents and decide by corresponding extruder rotating speed and the flat width of chewing, decide by corresponding extruder rotating speed at the embedding thickness of polyethylene colorless film (1) at the embedding width of polyethylene colorless film (1).
4. the manufacture method of colored ribbon film according to claim 3, it is characterized in that adding the polyethylene compound melt of color masterbatch and different auxiliary agents, flat chewing by corresponding tubular extruded runner upper end can from inside to outside import the annular port mould, the Coloured film (2) that adds color masterbatch and different auxiliary agents is embedded in the endosexine of polyethylene colorless film (1), also can import the annular port mould from outside to inside, the Coloured film (2) that adds color masterbatch and different auxiliary agents is embedded in the extexine of polyethylene colorless film (1).
5. the extruder of the described colored ribbon film manufacturing method of claim 3 is die head especially used, constitute by mould main body (3), external mold (4), internal mold (5), conveyor screw (6), adjustment ring (7), ring-type extrusion channel (8), annular port mould (9), it is characterized in that on mould main body (3), having set up again tubular extruded runner (10), set up flat the chewing (11) that tubular extruded runner (10) imports annular port mould (9) in the bottom of adventitia (4) again.
6. the extruder of colored ribbon film manufacturing method according to claim 5 is die head especially used, it is characterized in that tubular extruded runner (10) imports flat the chewing (11) of annular port mould (9), can from inside to outside import, also can import from outside to inside, tubular extruded runner (10) and flat chewing (11) can be established a plurality of, and the position can require to decide according to purposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98122173 CN1258596A (en) | 1998-12-30 | 1998-12-30 | Composite color film and its making process and specific mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98122173 CN1258596A (en) | 1998-12-30 | 1998-12-30 | Composite color film and its making process and specific mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1258596A true CN1258596A (en) | 2000-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98122173 Pending CN1258596A (en) | 1998-12-30 | 1998-12-30 | Composite color film and its making process and specific mold |
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| CN (1) | CN1258596A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007036137A1 (en) * | 2005-09-29 | 2007-04-05 | Xiaolu Li | Die for film-blowing machine and the machine including such die |
| CN101175625B (en) * | 2005-05-12 | 2010-09-29 | 东洋钢钣株式会社 | Process for production of brittle resin film and brittle resin film |
-
1998
- 1998-12-30 CN CN 98122173 patent/CN1258596A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101175625B (en) * | 2005-05-12 | 2010-09-29 | 东洋钢钣株式会社 | Process for production of brittle resin film and brittle resin film |
| WO2007036137A1 (en) * | 2005-09-29 | 2007-04-05 | Xiaolu Li | Die for film-blowing machine and the machine including such die |
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