CN1157348A - Method for manufacturing inner composite polypropylene cylinder - Google Patents
Method for manufacturing inner composite polypropylene cylinder Download PDFInfo
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- CN1157348A CN1157348A CN 96117157 CN96117157A CN1157348A CN 1157348 A CN1157348 A CN 1157348A CN 96117157 CN96117157 CN 96117157 CN 96117157 A CN96117157 A CN 96117157A CN 1157348 A CN1157348 A CN 1157348A
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- polypropylene
- bobbin
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Abstract
The present invention relates to a preparation method of inner composite polypropylene tubular weave bobbin. It is characterized by that it uses the two-layer composite bobbin film made up by existent equipment and technological process, and makes said two-layer composite bobbin film pass through the polypropylene circular loom to form three-layer film structure, then the three-layer composite bobbin film is into combination tower to implement heating combination, then the obtained composite finished product is cooled to room temp., so that the three-layer plastic inner composite polypropylene weave bobbin can be obtained. Said product can be used to make plastic bag with good air-tightness and high strength, etc..
Description
What the present invention relates to is the manufacture method of inner composite polypropylene weave bobbin, that is be as skin with polypropylene (PP) tubular weave bobbin, with the thermoplastic cylindrical membrane as internal layer, be lower than the hot melt adhesive film of ectonexine material as the middle level with fusing point, heating is combined into an integral body continuously through combination tower, the method for composite polypropylene (PP) tubular weave bobbin in making.
Existing polypropylene (PP) woven bag that polyethylene (PE) film is arranged again, majority are to adopt to squeeze
Go out the coated manufactured.It is elder generation's coated polyethylene film on the polypropylene flat fabric, will scribble poly one side and make internal layer elder generation system tube bag again.Another kind method is after the polypropylene cylinder folding is put down, to extrude the coated method with double-T shaped mould, and once polyethylene film on its two sides, outside coated is sewed up bag again, and this kind mode is called outer coated method.The shortcoming of these two kinds of methods is that the air-tightness that will consume the raw material of 3-5% more, sew up bag is bad, each bag has two seams, adopt the bag of heat-sealing system tube joint is not firm and easily drawn back; Outer coated bag loses the good advantage of stacking performance.So for a long time, the people on packing circle expect to have a kind of complex pocket with superperformance always.
The objective of the invention is to provide a kind of manufacture method that can produce inner composite polypropylene weave bobbin with thermoplastic tube film continuously.
The present invention utilizes existing extruder, polypropylene circular loom and combination tower equipment, the two-layer composite bobbin film made from existing coextrusion processes fits inside under running polypropylene circular loom, place in the polypropylene cylinder that is weaving, enter combination tower together, combination tower heats compound with external heating mode, compound good finished product is chilled to room temperature through cooler, can make inner composite polypropylene weave bobbin.
The key technology of this method be with composite bobbin film from the circular loom bottom of operation through in the polypropylene cylinder that is weaving, along with braiding constantly just penetrates in the tubular weave bobbin continuously, finish until braiding.Its method that penetrates has three kinds, and it is:
The one, when on polypropylene circular loom, being made into one section tubular weave bobbin, composite bobbin film is penetrated into the inside of tubular weave bobbin, stick with glue band composite bobbin film is attached in the polypropylene cylinder;
The 2nd, when weaving tubular weave bobbin as yet, polypropylene circular loom earlier composite bobbin film is not fitted inside from the polypropylene circular loom bottom, with upwards traction of composite bobbin film, be sandwiched between the nip rolls on polypropylene circular loom top with flat filament with polypropylene woven;
Three, get the close useless film in one section width and composite bobbin film flat folding footpath arbitrarily, and at first polypropylene flat-filament is sandwiched between the nip rolls on polypropylene circular loom top from the top one of circular loom, traction downwards wears out from the bottom of polypropylene circular loom again, sticks with glue the band film that will give up and is attached on the composite bobbin film.From after, along with the continuous weaving of polypropylene cylinder, composite bobbin film promptly penetrates the inside of polypropylene cylinder serially, and is rolled into volume with polypropylene cylinder.
Production process of the present invention is as follows:
Adopting coextrusion processes earlier is the high density polyethylene (HDPE) of 0.3-2.0 by adding melt index in the extruder, barrel zone temperature is 165 °-175 ℃, coextrusion die head temperature is 170 ° ± 2 ℃, with by another extruder, with melt index is the ethylene-vinyl acetate copolymer of 0.3-2.0, barrel zone temperature is 150 °-165 ℃, coextrusion die head temperature is 170 ℃ ± 3 ℃, it is the inside and outside two-layer composite bobbin film of having of 0.04-0.06MM that two kinds of plastics produce gross thickness through the inflation stretching, line speed be 8-12 rice/minute, be rolled into the back standby.This two-layer composite bobbin film is unreeled, from just fitting inside in operating four shuttle polypropylene circular loom bottoms, the method that penetrates is one of three kinds of methods as the aforementioned, place in the middle of the tubular weave bobbin that is weaving, promptly become the polypropylene cylinder semi-finished product that have been inserted in composite bobbin film, its speed of production be 0.9-1.1 rice/minute, these semi-finished product be rolled into again the back standby.The semi-finished product volume that will be inserted in the polypropylene cylinder of composite bobbin film at last unreels, make its carry-over pinch rolls through the top of combination tower, after its traction, pass through deflector roll, guide plate, suspention roller strap groove nip rolls, suspending rod, be enclosed within compound mandrel outside, pass cooler and the composite core roll forming circularizes the gap, and be sandwiched between two rollers of carry-over pinch rolls at the bottom of the tower, regulating the carry-over pinch rolls of cat head and the speed of the carry-over pinch rolls at the bottom of the tower makes it synchronous, connect the power supply of outer heater again, from the outside outer field polypropylene cylinder and the compound tube of middle internal layer are heated, ethylene-vinyl acetate copolymer film until the middle level is fused into melt, can with in, the outer two-layer plastics and the middle level of fusion are combined into one, then through cooler with three layers of composite membrane but to room temperature, promptly make inner composite polypropylene weave bobbin.
The inner composite polypropylene weave bobbin that adopts this method to make, by the heat sealing method bag, the air-tightness of its finished product is good, intensity is high, materials are economized, stacking performance is good.Be a kind of novel packaging bag, it can satisfy the packing of the product of various packing instructions.
Below in conjunction with the accompanying drawing elaboration detailed to method of the present invention.
Accompanying drawing 1 is the technological process of production schematic diagram of inner composite polypropylene weave bobbin;
Accompanying drawing 2 is front elevational schematic of the combination tower in the inner composite polypropylene weave bobbin production equipment;
Accompanying drawing 3 is schematic side view of the combination tower in the inner composite polypropylene weave bobbin production equipment.
With reference to accompanying drawing 1,2,3, a kind of with the continuous manufacture method of producing inner composite polypropylene weave bobbin of thermoplastic tube symphysis.Be to utilize existing extruder (1) (2), polypropylene circular loom (4) and combination tower (8) equipment, the two-layer composite bobbin film made from existing coextrusion processes (3) fits inside under running polypropylene circular loom (4), place in the polypropylene cylinder that is weaving, form the structure of trilamellar membrane, enter combination tower then together, combination tower heats compound with external heating mode, compound good finished product is chilled to room temperature through cooler, can make the inner composite polypropylene weave bobbin of three-layer plastic.
The key technology of this method be with composite bobbin film (3) from circular loom (4) bottom of operation through in the polypropylene cylinder that is weaving (5), along with braiding constantly just penetrates in the tubular weave bobbin continuously, finish until braiding.Its method that penetrates has three kinds, and it is:
When one, being the one section tubular weave bobbin (5) that on polypropylene circular loom (4), has been made into, composite bobbin film (3) is penetrated into the inside of tubular weave bobbin (5), stick with glue band composite bobbin film (3) is attached in the polypropylene cylinder (5);
Two, be when polypropylene circular loom (4) weaves tubular weave bobbin (5) as yet, earlier composite bobbin film (3) not to be fitted inside from polypropylene circular loom (4) bottom, with upwards traction of composite bobbin film (3), be sandwiched between the nip rolls (6) on polypropylene circular loom top with flat filament with polypropylene woven;
Three, get the close useless film in one section width and composite bobbin film (3) flat folding footpath arbitrarily, and at first polypropylene flat-filament one is sandwiched between the nip rolls (6) on polypropylene circular loom (4) top, traction downwards wears out from the bottom of polypropylene circular loom (4) again, sticks with glue the band film that will give up and is attached on the composite bobbin film (3).From after, along with the continuous weaving of polypropylene cylinder (4), composite bobbin film (3) promptly penetrates the inside of polypropylene cylinder (5) serially, and is rolled into volume with polypropylene cylinder (5).
Production process of the present invention is as follows:
Adopting coextrusion processes earlier is the high density polyethylene (HDPE) of 0.3-2.0 by adding melt index in the extruder (1), barrel zone temperature is 165 °-175 ℃, coextrusion die head temperature is 170 ° ± 2 ℃, with by another extruder (2), with melt index is the ethylene-vinyl acetate copolymer of 0.3-2.0, barrel zone temperature is 150 °-165 ℃, coextrusion die head temperature is 170 ℃ ± 3 ℃, it is the inside and outside two-layer composite bobbin film (3) of having of 0.04-0.06MM that two kinds of plastics produce gross thickness through the inflation stretching, line speed be 8-12 rice/minute, be rolled into the back standby.This two-layer composite bobbin film (3) is unreeled, from just fitting inside in operating four shuttle polypropylene circular loom (4) bottoms, the method that penetrates is one of three kinds of methods as the aforementioned, place in the middle of the tubular weave bobbin (5) that is weaving, promptly become polypropylene cylinder (5) semi-finished product that packed into composite bobbin film (3), its speed of production be 0.9-1.1 rice/minute, these semi-finished product be rolled into again the back standby.The semi-finished product volume that will pack into the polypropylene cylinder (5) of composite bobbin film (3) at last unreels, make its carry-over pinch rolls (7) through the top of combination tower (8), after its traction, pass through deflector roll (9) (10), guide plate (11), suspention roller (12), trough of belt nip rolls (13), suspending rod (14) is enclosed within compound mandrel (15) outside, pass cooler (17) and form the annular gap with compound mandrel (15), and be sandwiched between two rollers of carry-over pinch rolls (18) at the bottom of the tower, regulating the carry-over pinch rolls (7) of cat head and the speed of the carry-over pinch rolls (18) at the bottom of the tower makes it synchronous, connect the power supply of outer heater (16) again, from the outside outer field polypropylene cylinder (5) and the compound tube of middle internal layer (3) are heated, reach 110 ° ± 3 ℃ until the ethylene-vinyl acetate copolymer film in middle level and be fused into melt, can with in, the outer two-layer plastics and the middle level of fusion are combined into one, then through cooler (17) with three layers of composite membrane but to room temperature, promptly make inner composite polypropylene weave bobbin.
The inner composite polypropylene weave bobbin that adopts this method to make, by the heat sealing method bag, the air-tightness of its finished product is good, intensity is high, materials are economized, stacking performance is good.Be a kind of novel packaging bag, it can satisfy the packing of the product of various packing instructions.
Claims (2)
1, a kind of manufacture method of inner composite polypropylene weave bobbin, be to utilize extruder (1) (2), polypropylene circular loom (4) and combination tower (8) equipment, the two-layer composite bobbin film made from coextrusion processes, it is characterized in that the two-layer composite bobbin film that will make fits inside under running polypropylene circular loom, place in the polypropylene cylinder that is weaving, form the structure of trilamellar membrane, enter combination tower then together, combination tower heats compound with external heating mode, compound good finished product is chilled to room temperature through cooler, can make the inner composite polypropylene weave bobbin of three-layer plastic;
The key technology of this method be with composite bobbin film (3) from circular loom (4) bottom of operation through in the polypropylene cylinder that is weaving (5), along with braiding constantly just penetrates in the tubular weave bobbin continuously, finish until braiding.Its method that penetrates has three kinds, and it is:
One, is below the one section tubular weave bobbin (5) that on polypropylene circular loom (4), has been made into, composite bobbin film (3) is penetrated into the inside of tubular weave bobbin (5), stick with glue band composite bobbin film (3) is attached in the polypropylene cylinder (5);
Two, be when polypropylene circular loom (4) weaves tubular weave bobbin (5) as yet, earlier composite bobbin film (3) not to be fitted inside from polypropylene circular loom (4) bottom, with upwards traction of composite bobbin film (3), be sandwiched between the nip rolls (6) on polypropylene circular loom top with flat filament with polypropylene woven;
Three, get the close useless film in one section width and composite bobbin film (3) flat folding footpath arbitrarily, and at first polypropylene flat-filament is sandwiched between the nip rolls (6) on polypropylene circular loom (4) top from the top one of circular loom (4), traction downwards wears out from the bottom of polypropylene circular loom (4) again, sticks with glue band and will gather flat filament and be attached on the composite bobbin film (3).From after, along with the continuous weaving of polypropylene cylinder (4), composite bobbin film (3) promptly penetrates the inside of polypropylene cylinder (5) serially, and is rolled into volume with polypropylene cylinder (5).
2, manufacture method according to a kind of inner composite polypropylene weave bobbin of claim 1, it is characterized in that adopting coextrusion processes earlier is the high density polyethylene (HDPE) of 0.3-2.0 by adding melt index in the extruder (1), barrel zone temperature is 165 °-175 ℃, coextrusion die head temperature is 170 ° ± 2 ℃, with by another extruder (2), with melt index is ethene one vinyl acetate co-polymer of 0.3-2.0, barrel zone temperature is 150 °-165 ℃, coextrusion die head temperature is 170 ℃ ± 3 ℃, it is the inside and outside two-layer composite bobbin film (3) of having of 0.04-0.06MM that two kinds of plastics produce gross thickness through the inflation stretching, line speed be 8-12 rice/minute, be rolled into the back standby; This two-layer composite bobbin film (3) is unreeled, from just fitting inside in operating four shuttle polypropylene circular loom (4) bottoms, the method that penetrates is one of three kinds of methods as the aforementioned, place in the middle of the tubular weave bobbin (5) that is weaving, promptly become polypropylene cylinder (5) semi-finished product that packed into composite bobbin film (3), its speed of production be 0.9-1.1 rice/minute, these semi-finished product be rolled into again the back standby; The semi-finished product volume that will pack into the polypropylene cylinder (5) of composite bobbin film (3) at last unreels, make its carry-over pinch rolls (7) through the top of combination tower (8), after its traction, pass through deflector roll (9) (10), guide plate (11), suspention roller (12), trough of belt nip rolls (13), suspending rod (14) is enclosed within compound mandrel (15) outside, pass cooler (17) and form the annular gap with compound mandrel (15), and be sandwiched between two rollers of carry-over pinch rolls (18) at the bottom of the tower, regulating the carry-over pinch rolls (7) of cat head and the speed of the carry-over pinch rolls (18) at the bottom of the tower makes it synchronous, connect the power supply of outer heater (16) again, from the outside outer field polypropylene cylinder (5) and the compound tube of middle internal layer (3) are heated, reach 110 ° ± 3 ℃ until the ethylene-vinyl acetate copolymer film in middle level and be fused into melt, can with in, the outer two-layer plastics and the middle level of fusion are combined into one, then through cooler (17) with three layers of composite membrane but to room temperature, promptly make inner composite polypropylene weave bobbin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96117157A CN1042210C (en) | 1996-10-31 | 1996-10-31 | Method for manufacturing inner composite polypropylene cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96117157A CN1042210C (en) | 1996-10-31 | 1996-10-31 | Method for manufacturing inner composite polypropylene cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1157348A true CN1157348A (en) | 1997-08-20 |
| CN1042210C CN1042210C (en) | 1999-02-24 |
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ID=5124092
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96117157A Expired - Fee Related CN1042210C (en) | 1996-10-31 | 1996-10-31 | Method for manufacturing inner composite polypropylene cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042210C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312603C (en) * | 2002-06-28 | 2007-04-25 | 精工爱普生株式会社 | Display method, display device for game machine and game machine |
| CN105035494A (en) * | 2015-07-16 | 2015-11-11 | 广西鹿寨桂浙塑料包装有限公司 | Woven bag provided with lining film |
| CN105109052A (en) * | 2015-08-19 | 2015-12-02 | 江苏森宝包装有限公司 | Production process of plastic woven bag |
| CN106319728A (en) * | 2016-08-23 | 2017-01-11 | 天津市旭辉恒远塑料包装股份有限公司 | Production method of high-strength plastic woven bag |
| CN113846403A (en) * | 2021-08-26 | 2021-12-28 | 中裕软管科技股份有限公司 | Water hose and integrated forming process thereof |
| CN115434063A (en) * | 2021-10-26 | 2022-12-06 | 中裕软管科技股份有限公司 | Double-machine synchronous weaving device and control method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767949A (en) * | 1987-05-01 | 1988-08-30 | Rca Licensing Corporation | Multibit digital threshold comparator |
| CN2191221Y (en) * | 1994-04-27 | 1995-03-08 | 平阳县塑料机械总厂 | Width spreading four-spindle circular loom for weaving plastic bag |
-
1996
- 1996-10-31 CN CN96117157A patent/CN1042210C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312603C (en) * | 2002-06-28 | 2007-04-25 | 精工爱普生株式会社 | Display method, display device for game machine and game machine |
| CN105035494A (en) * | 2015-07-16 | 2015-11-11 | 广西鹿寨桂浙塑料包装有限公司 | Woven bag provided with lining film |
| CN105109052A (en) * | 2015-08-19 | 2015-12-02 | 江苏森宝包装有限公司 | Production process of plastic woven bag |
| CN106319728A (en) * | 2016-08-23 | 2017-01-11 | 天津市旭辉恒远塑料包装股份有限公司 | Production method of high-strength plastic woven bag |
| CN113846403A (en) * | 2021-08-26 | 2021-12-28 | 中裕软管科技股份有限公司 | Water hose and integrated forming process thereof |
| CN115434063A (en) * | 2021-10-26 | 2022-12-06 | 中裕软管科技股份有限公司 | Double-machine synchronous weaving device and control method |
| CN115434063B (en) * | 2021-10-26 | 2024-09-06 | 中裕软管科技股份有限公司 | Double-machine synchronous braiding device and control method |
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| Publication number | Publication date |
|---|---|
| CN1042210C (en) | 1999-02-24 |
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