CN105235195A - Film preparing method for overcoming appearance dust defect - Google Patents
Film preparing method for overcoming appearance dust defect Download PDFInfo
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- CN105235195A CN105235195A CN201510728220.0A CN201510728220A CN105235195A CN 105235195 A CN105235195 A CN 105235195A CN 201510728220 A CN201510728220 A CN 201510728220A CN 105235195 A CN105235195 A CN 105235195A
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- horizontal
- clip
- dust
- ajutage
- draw
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Abstract
The invention discloses a film preparing method for overcoming an appearance dust defect. The film preparing method includes a melt extrusion process, a sheet casting process, a longitudinal stretching process, an online coating process, a transverse stretching process and a rolling process. A transverse stretching rail for transversely stretching a clamp to run is arranged in a transverse stretching box in the transverse stretching process. After the improvement, at least one air supply pipe is installed on the transverse stretching box by the transverse stretching clamp, and an exhaust pipe is arranged on the upper portion of the transverse stretching box. According to the film preparing method, the structure is simple, the influences of dust of the transverse stretching clamp on the appearance dust defect of a film can be effectively reduced, the appearance performance of the film is improved, the normal production time is prolonged, and the qualification rate of products is increased.
Description
Technical field
The present invention relates to polyester film technical field, particularly a kind of preparation method improving the apparent dust disadvantage of film.
Background technology
Polyester film produce comprise melt extrude, slab operation, longitudinal stretching, online coating, cross directional stretch and winding process.Cross directional stretch is one of them critical process, the clip on track is drawn to clamp sheet film both sides by horizontal, with certain draw speed, sheet film is stretched to the width of setting, through preheating zone, drawing zone, shaping area and cooling zone temperature control to make polyester film have good microstructure and mechanical performance.But be pulled through in journey horizontal, due to horizontal draw clip outer circulation time variations in temperature, clip surfaces is made to adhere to large weight oligomers, after hyperthermia drying, a large amount of dust waves in track casing, cause adsorbing powder dust to film surface, cause the apparent disadvantage of film, cause producing a large amount of salient point in follow-up cutting process, affect the qualification rate of product.In addition, in coated product production process, the non-bone dry of coating fluid on coating rear panel film surface, enters horizontal operation of drawing and clamps stretching through the horizontal clip that draws, cause on clip and be stained with coating fluid.Through horizontal draw high-temperature heating after, the drying of clip surfaces coating fluid come off formed a large amount of dust, wave everywhere.Because sheet film strips has electrostatic, have certain absorption affinity, dust is adsorbed onto film surface in a large number, forms apparent disadvantage, affects product quality, and how removing the dust produced in production is the problem being badly in need of solving.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method for manufacturing thin film improving apparent dust disadvantage, the method continuation or discontinuity can reduce and horizontally draw dust content in clip surfaces and track casing, reduce or avoid film surface adsorption of dust, and then improving product apparent mass and qualification rate.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of method for manufacturing thin film improving apparent dust disadvantage, comprise and melt extrude operation, slab operation, longitudinal stretching operation, online painting process, cross directional stretch operation and winding process, horizontal to draw in operation horizontal draw in casing be provided with horizontal draw clip to run horizontally draw track, after improvement, the horizontal clip that draws installs at least one ajutage horizontal drawing on casing, arranges exhaust column on the horizontal top of casing of drawing.
The method for manufacturing thin film of the apparent dust disadvantage of above-mentioned improvement, described ajutage arranges multiple, is distributed in horizontally to draw on the wall of casing; Draw on clip traffic direction horizontal, the horizontal clip that draws first purges through ajutage, then is removed by dust through exhaust column exhausting, and exhaust column and ajutage draw the distance on clip traffic direction to be 40cm ~ 60cm horizontal.
The method for manufacturing thin film of the apparent dust disadvantage of above-mentioned improvement, described ajutage and the horizontal angle α of the horizontal direction of clip that draws are 10 ° ~ 45 °.
The method for manufacturing thin film of the apparent dust disadvantage of above-mentioned improvement, described ajutage air outlet and the horizontal distance of clip of drawing are 10mm ~ 25mm; The air output of ajutage is 20000 ~ 22000m
3/ h.
The method for manufacturing thin film of the apparent dust disadvantage of above-mentioned improvement, the pipe wall internal diameters of described ajutage is 5mm ~ 10mm, and the pipe wall internal diameters of exhaust column is 200mm ~ 400mm.
The present invention, by setting up ajutage and exhaust column horizontal drawing in operation, optimizes the air quantity of ajutage and exhaust column, makes the horizontal dust of clip surfaces that draws to be absorbed totally; Draw the position in case to arrange by ajutage horizontal, the horizontal dust of clip surfaces that draws is removed further, reaches horizontal object of drawing operation to purify, avoid because of horizontal film surface salient point problem of drawing operation dust to cause, improve the apparent mass of film.
Accompanying drawing explanation
Fig. 1 is film production flow chart;
Fig. 2 is dust pelletizing system relative position schematic diagram;
Fig. 3 is horizontal draws casing longitudinal profile schematic diagram.
In figure, each label is expressed as: 1 melt extrudes operation; 2 slab operations; 3 longitudinal stretching operations; 4 online painting process; 5 cross directional stretch operations; 6 winding process; 7 film traffic directions; 9, horizontally track is drawn; 10, horizontally clip is drawn; 11, horizontally casing is drawn; 12, ajutage; 13, exhaust column.
there is embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1
In film manufacturing processes, a pair dust arrester is set in horizontal clip track both sides of drawing.During production, opened by switch board, plant running.Arranging air compressor conveying air quantity is 20000m
3compressed air blows to through tracheae and horizontally draws clip surfaces by/h, arranging tracheae 8 internal diameter is 5mm, tracheae and the horizontal angle α of track horizontal direction that draws are 10 °, the distance of ajutage air outlet and clip is 5mm, the distance of ajutage and exhaust column 9 is 40cm, blow down clip surfaces dust, 200mm air draft pipe 4,20000m is set
3dust siphons away by the air draft air quantity of/h.
Embodiment 2
In film manufacturing processes, a pair dust arrester is set in horizontal clip track both sides of drawing.During production, opened by switch board, plant running.Arranging air compressor conveying air quantity is 20500m
3compressed air blows to through tracheae and horizontally draws clip surfaces by/h, arranging tracheae 8 internal diameter is 6mm, tracheae and the horizontal angle α of track horizontal direction that draws are 20 °, the distance of ajutage air outlet and clip is 10mm, the distance of ajutage and exhaust column 9 is 45cm, blow down clip surfaces dust, 250mm air draft pipe 4,20500m is set
3dust siphons away by the air draft air quantity of/h.
Embodiment 3
In film manufacturing processes, a pair dust arrester is set in horizontal clip track both sides of drawing.During production, opened by switch board, plant running.Arranging air compressor conveying air quantity is 21000m
3compressed air blows to through tracheae and horizontally draws clip surfaces by/h, arranging tracheae 3 internal diameter is 7mm, tracheae and the horizontal angle α of track horizontal direction that draws are 30 °, the distance of ajutage air outlet and clip is 15mm, the distance of ajutage and exhaust column 9 is 50cm, blow down clip surfaces dust, 300mm air draft pipe 4,21000m is set
3dust siphons away by the air draft air quantity of/h.
Embodiment 4
In film manufacturing processes, a pair dust arrester is set in horizontal clip track both sides of drawing.During production, opened by switch board, plant running.Arranging air compressor conveying air quantity is 21500m
3compressed air blows to through tracheae and horizontally draws clip surfaces by/h, arranging tracheae 8 internal diameter is 8mm, tracheae and the horizontal angle α of track horizontal direction that draws are 40 °, the distance of ajutage air outlet and clip is 20mm, the distance of ajutage and exhaust column 9 is 55cm, blow down clip surfaces dust, 350mm air draft pipe 4,21500m is set
3dust siphons away by the air draft air quantity of/h.
Embodiment 5
In film manufacturing processes, a pair dust arrester is set in horizontal clip track both sides of drawing.During production, opened by switch board, plant running.Arranging air compressor conveying air quantity is 22000m
3compressed air blows to through tracheae and horizontally draws clip surfaces by/h, arranging tracheae 8 internal diameter is 10mm, tracheae and the horizontal angle α of track horizontal direction that draws are 45 °, the distance of ajutage air outlet and clip is 25mm, the distance of ajutage and exhaust column 9 is 60cm, blow down clip surfaces dust, 400mm air draft pipe 4,22000m is set
3dust siphons away by the air draft air quantity of/h.
Dedusting test evaluation method: under fluorescent light and bright light torch range estimation cut into axle product and monolithic thin film.
Test result: after installing dust arrester, monolithic thin film is estimated and is not all found fine dusts under fluorescent lamp bright light torch, and become on axle product not find that dust produces microscopic bumps or finds that few dust produces microscopic bumps, growth line does not interrupt because dust causes producing.
Claims (5)
1. one kind is improved the method for manufacturing thin film of apparent dust disadvantage, comprise and melt extrude operation (1), slab operation (2), longitudinal stretching operation (3), online painting process (4), cross directional stretch operation (5) and winding process (6), horizontal to draw in operation (5) horizontal draw in casing (11) be provided with horizontal draw clip (10) to run horizontally draw track (9), it is characterized in that, the horizontal clip that draws draws casing (11) at least one ajutage of upper installation (12) horizontal, arranges exhaust column (13) on the horizontal top of casing (11) of drawing.
2. the method for manufacturing thin film of the apparent dust disadvantage of improvement according to claim 1, is characterized in that, described ajutage (12) arranges multiple, is distributed on the horizontal wall drawing casing (11); Draw on clip traffic direction horizontal, the horizontal clip that draws first purges through ajutage (12), then is removed by dust through exhaust column exhausting, and exhaust column and ajutage draw the distance on clip traffic direction to be 40cm ~ 60cm horizontal.
3. the method for manufacturing thin film of the apparent dust disadvantage of improvement according to claim 2, is characterized in that, described ajutage (12) and the horizontal angle α of the horizontal direction of clip that draws are 10 ° ~ 45 °.
4. the method for manufacturing thin film of the apparent dust disadvantage of improvement according to claim 3, is characterized in that, described ajutage (12) air outlet and the horizontal distance of clip of drawing are 10mm ~ 25mm; The air output of ajutage is 20000 ~ 22000m
3/ h.
5. the method for manufacturing thin film of the apparent dust disadvantage of improvement according to claim 4, is characterized in that, the pipe wall internal diameters of described ajutage (12) is 5mm ~ 10mm, and the pipe wall internal diameters of exhaust column (9) is 200mm ~ 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728220.0A CN105235195A (en) | 2015-10-30 | 2015-10-30 | Film preparing method for overcoming appearance dust defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728220.0A CN105235195A (en) | 2015-10-30 | 2015-10-30 | Film preparing method for overcoming appearance dust defect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105235195A true CN105235195A (en) | 2016-01-13 |
Family
ID=55033135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728220.0A Pending CN105235195A (en) | 2015-10-30 | 2015-10-30 | Film preparing method for overcoming appearance dust defect |
Country Status (1)
| Country | Link |
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| CN (1) | CN105235195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502149A (en) * | 2022-11-10 | 2022-12-23 | 江苏康辉新材料科技有限公司 | Device for improving surface quality of film surface edge part |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007152222A (en) * | 2005-12-05 | 2007-06-21 | Hitachi Plant Technologies Ltd | Method and apparatus for removing dust from film roll |
| CN202137946U (en) * | 2011-06-30 | 2012-02-08 | 常州钟恒新材料有限公司 | Dust removal device for TDO (transverse direction orientation) film transverse tensioning machine |
| JP2012024658A (en) * | 2010-07-20 | 2012-02-09 | Hitachi Plant Technologies Ltd | Dust removal device for surface of thin film |
| CN202725553U (en) * | 2012-07-09 | 2013-02-13 | 深圳市华星光电技术有限公司 | Cleaning device |
| CN202986085U (en) * | 2012-12-25 | 2013-06-12 | 天津市天缘电工材料有限责任公司 | Film surface cleaning system |
| CN103978673A (en) * | 2014-04-30 | 2014-08-13 | 宁波东旭成新材料科技有限公司 | Novel thin film transverse stretching machine |
-
2015
- 2015-10-30 CN CN201510728220.0A patent/CN105235195A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007152222A (en) * | 2005-12-05 | 2007-06-21 | Hitachi Plant Technologies Ltd | Method and apparatus for removing dust from film roll |
| JP2012024658A (en) * | 2010-07-20 | 2012-02-09 | Hitachi Plant Technologies Ltd | Dust removal device for surface of thin film |
| CN202137946U (en) * | 2011-06-30 | 2012-02-08 | 常州钟恒新材料有限公司 | Dust removal device for TDO (transverse direction orientation) film transverse tensioning machine |
| CN202725553U (en) * | 2012-07-09 | 2013-02-13 | 深圳市华星光电技术有限公司 | Cleaning device |
| CN202986085U (en) * | 2012-12-25 | 2013-06-12 | 天津市天缘电工材料有限责任公司 | Film surface cleaning system |
| CN103978673A (en) * | 2014-04-30 | 2014-08-13 | 宁波东旭成新材料科技有限公司 | Novel thin film transverse stretching machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502149A (en) * | 2022-11-10 | 2022-12-23 | 江苏康辉新材料科技有限公司 | Device for improving surface quality of film surface edge part |
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| PB01 | Publication | ||
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Application publication date: 20160113 |