CN103161096B - Method for realizing coating for microcapsules by film transfer - Google Patents
Method for realizing coating for microcapsules by film transfer Download PDFInfo
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- CN103161096B CN103161096B CN201110407109.3A CN201110407109A CN103161096B CN 103161096 B CN103161096 B CN 103161096B CN 201110407109 A CN201110407109 A CN 201110407109A CN 103161096 B CN103161096 B CN 103161096B
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Abstract
The invention discloses a novel method for coating microcapsules, and particularly relates to a method for realizing coating for microcapsules by film transfer. The method disclosed by the invention comprises the following steps of: a, running coating rolls and achieving a running speed, when the tail of paper is led through a coating machine, turning on full-width spraying water, driving an acting combined beam by a cylinder, rotating a metering rod, pressurizing by a loading air pocket, and charging a microcapsule coating by a charge tube; b, when a loading pressure is stable and coating layers on the surfaces of the rolls are uniform, and turning on edge-spraying water; and c, after paper is spread with a full width on the coating machine, bonding the two coating rolls, turning on the full-width spraying water to an automatic position, and adjusting a coating weight according to a coating weight horizontal curve, and via the adjustment of a fine adjustment mechanism and the pressurization of the loading air pocket. The method disclosed by the invention has the advantages that control on the coating weight is stable; the coating weight is convenient and fast to adjust by the fine adjustment mechanism; and a coating solid content is high, so that a requirement on the drying capacity after coating is low, thus reducing steam consumption, and the production cost of per ton of paper.
Description
Technical field
The present invention introduces a kind of coating microcapsule method newly, relates in particular to the method realizing coating microcapsules with film transfer.
Background technology
Coupling type no carbon paper can be divided into: upper paper (CB paper) i.e. paper backsize contains the coating of colour former; Middle paper (CFB paper) the i.e. coating of paper front coating containing developer, backsize contain the coating of colour former; Lower paper (CF paper) is i.e. the coating of paper front coating containing developer.The color mechanism of no carbon paper is: when joining connection (general upper bottom paper, lower paper, intermediate layer insert in paper) good no carbon paper is when being subject to extraneous pressure, be coated in the microcapsules rupture of last layer paper bottom surface, leuco dye liquid in microcapsules flows out and contacts with the developer in lower one deck paper front, react and develop the color, obtaining duplicate or identical log file.
Under coating waste water carbonless copying, paper (CF paper) once can have been produced in machine inner membrance transfer coated by paper machine, or machined by the outer airblade coating of machine, and paper (CB paper) and middle paper (CFB paper) are all carry out processing by curtain coating and traditional airblade coating on current processing carbonless copying both at home and abroad, its main cause is that the microcapsules in enteric coating can not be subject to External Force Acting.If microencapsulation coating film transfer or knife type coater coating, because film transfer or scraper need produce certain linear pressure to page (containing coating), control quantitative and homogenize coating, this will cause breaking of microcapsules, colour former overflows, infiltrate page contact with developer and develop the color and pollute paper, and namely the microcapsules after breaking lose manifolding effect, microcapsules rupture generally can not be made to ensure product quality with curtain coating and traditional airblade coating.
The theory of coating line can be divided into on-line coater and paper-dope spreading, paper-dope spreading is belonged to paper (CB paper) and middle paper (CFB paper) on curtain coating and traditional airblade coating processing carbonless copying, comparatively on-line coater is compared, its investment and running expense high, operate more complicated, but also do not have on-line coater to produce the method for paper (CB paper) and middle paper (CFB paper) on carbonless copying at present both at home and abroad.
Summary of the invention
The object of the invention is to the problem that solution must not use film transfer coated microcapsules, breach the limitation with paper (CB paper) and middle paper (CFB paper) on curtain coating and these two kinds of paper-dope spreading method processing carbonless copyings of traditional airblade coating.
The method that film transfer in the present invention realizes coating microcapsules comprises: a. applicator roll operates, applicator roll speed reaches the speed of service, when paper tail is introduced through coating machine, open full width shower water, beam is closed in air cylinder driven action makes gauge stick and applicator roll fit, gauge stick rotates, loading gasbag pressurizes impels feed pipe to carry out enteric coating to roll surface, b. when material loading pressure stability, when roll surface dope layer is even, open spray limit water to spray roll surface, c. when paper is after coating machine puts full width, two applicator roll laminatings, full width shower water gets to automatic position, d. according to coating weight banner curve, adjusted by micro-adjusting mechanism, load gasbag pressurizes adjustment coating weight.
Coating weight in the present invention is between 4.5 ~ 5.0g/ ㎡.Microcapsule formula is as follows: solvent naphtha 73.0%, leuco dye CVL5.0%, emulsifying agent 5.0%, cyst material 16.8%, water conservation rheological agent 0.2%.Cyst material is melamine resin, and leuco dye material is CVL.Microcapsules become material solid content 40%, pH=8, viscosity: 50 ~ 120cp.Use on the paper machine of the method for film transfer realization coating microcapsules and be provided with two applicator rolls, the framework that each applicator roll connects respectively is provided with application device, application device comprises scrapes magazine above excellent bed, rod bed, the gauge stick that rod bed is installed, the excellent bed locking device adjacent with excellent bed, one is respectively had to spray limit water below the two ends of two applicator rolls, load air bag, load the micro-adjusting mechanism that air bag is installed, the feed pipe connect with loading airbags, and export adjacent sealed knife with feed pipe, also water spilage tray is provided with below applicator roll, below feed pipe, pulp-collecting box is installed, full width shower water is installed below two applicator rolls.The applicator roll of paper machine is attached with the special encapsulate of resistance to enteric coating corrosion.
The invention has the advantages that: 1. the present invention uses film transfer coated microcapsules, evenly, gauge stick metered application amount makes coating weight control stablize, and micro-adjusting mechanism is fast easy to adjust to coating weight in coating; 2. the microcapsules that the present invention uses have good rub resistance, paper (CB paper) and middle paper (CFB paper) on the carbonless copying produced, microcapsules rupture can not be caused because being subject to general External Force Acting, colour former overflows, infiltrate page contact with developer and develop the color and pollute paper, thus avoid the infringement when transport, storage to product quality.3. the present invention and curtain coating and traditional airblade coating contrast, and enteric coating solid content is high, the contrast of three kinds of methods coating solid contents, the solid content 25% of curtain coating, the solid content 18% of airblade coating, the solid content 40% of film transfer coated.Coating solid content is high to be required little to the drying capacity after coating, thus reduces steam consumption, and ton paper production cost reduces; 4. the utility model and curtain coating and traditional airblade coating contrast, coating weight is high, the contrast of three kinds of method coating coating weights, the coating weight 4.0 g/ ㎡ of curtain coating, the coating weight 2.5 g/ ㎡ of airblade coating, and the color developing effect of paper (CB paper) and middle paper (CFB paper) is good on the high carbonless copying making coating produce of coating weight 4.5 g/ ㎡ coating weight of film transfer coated, is conducive to the product quality improving paper, is convenient to produce high-grade no carbon paper.5. be used in the production that the paper machine last time completes paper and middle paper on carbonless copying.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
Fig. 1 is film transfer coater structural representation;
Fig. 2 is schematic diagram before the laminating of film transfer coater two applicator roll;
Fig. 3 is schematic diagram after the laminating of film transfer coater two applicator roll;
Fig. 4 is the close-up schematic view of apparatus for coating in Fig. 1.
In Fig. 1: 1. scrape magazine; 2. gauge stick; 3. rod bed; 4. micro-adjusting mechanism; 5. load air bag; 6. feed pipe; 7. framework; 8. air cylinder driven; 9. water spilage tray; 10. full width shower water; 11. pulp-collecting box; 12. spray limit water; 13. sealed knifes; 14. rod bed locking devices; 15. applicator rolls; 16. pages.
Detailed description of the invention
The method that film transfer in the present invention realizes coating microcapsules comprises: a. applicator roll 15 operates, applicator roll 15 speed reaches the speed of service, when paper tail is introduced through coating machine, open full width shower water 10, beam is closed in air cylinder driven 8 action makes gauge stick 2 and applicator roll 15 fit, gauge stick 2 rotates, loading air bag 5 pressurization impels feed pipe 6 pairs of roll surfaces to carry out enteric coating, b. when material loading pressure stability, when roll surface dope layer is even, open spray limit water 12 pairs of roll surfaces to spray, c. when paper is after coating machine puts full width, two applicator roll laminatings, full width shower water 10 gets to automatic position, d. according to coating weight banner curve, adjusted by micro-adjusting mechanism 4, load air bag 5 pressurization adjustment coating weight.
Coating weight in the present invention is between 4.5 ~ 5.0g/ ㎡.Microcapsule formula is as follows: solvent naphtha 73.0%, leuco dye CVL5.0%, emulsifying agent 5.0%, cyst material melamine resin 16.8%, water conservation rheological agent 0.2%.Microcapsules become material solid content 40%, pH=8, viscosity: 50 ~ 120cp.Use on the paper machine of the method for film transfer realization coating microcapsules and be provided with two applicator rolls, the framework 7 that each applicator roll 15 connects respectively is provided with application device, described application device comprises scrapes magazine 1 above excellent bed 3, rod bed 3, the gauge stick (2) that rod bed 3 is arranged, the excellent bed locking device 14 adjacent with excellent bed 3, the spray limit water 12 adjacent with the two ends of applicator roll, load air bag 5, load the micro-adjusting mechanism that air bag 5 is installed, the feed pipe 6 be connected with loading air bag 5, and export adjacent sealed knife 13 with feed pipe 6, described paper machine is gone back below applicator roll and be provided with water spilage tray 9, pulp-collecting box 11 is provided with below feed pipe 6, on lathe, the periphery 5-6cm distance of applicator roll 15 installs full width shower water 10.The applicator roll 15 of paper machine is attached with encapsulate.
Below in conjunction with accompanying drawing to the inventive method further instruction:
When before the start of paper machine or after disconnected paper, check that whether each parts of coating machine are normal: sealed knife 13 position, clean situation and abrasion condition; Whether gauge stick 2 and excellent bed 3 clean; Whether rod bed 3 locks, and is controlled by excellent bed locking device 14; Whether paper is had in pulp-collecting box 11 and water spilage tray 9; Whether full width shower water 10 and spray limit water 12 have blocking; Whether intactly load air bag 5.
Start coating machine: check normally, applicator roll 15 operates, and speed reaches the speed of service, when paper tail is introduced through coating machine, open full width shower water 10, beam is closed in air cylinder driven 8 action, and gauge stick 2 rotates, load air bag 5 to pressurize, enteric coating on feed pipe 6, when material loading pressure stability, roll surface dope layer are even, opens spray limit water 12, when paper is after coating machine puts full width, two applicator roll laminatings.
As Fig. 2,3, full width shower water 10 gets to automatic position, according to coating weight banner curve, is adjusted by micro-adjusting mechanism 4, adjusting coating weight, making coating weight control within the scope of 4.5 ~ 5.0g/ ㎡ by loading air bag 5 size of pressurizeing.In Fig. 2 16 is page.During work, when spray limit water 12 works, one heads straight for, roll surface is damaged for preventing between roller and dry grinding between roller and gauge stick 2, automatic position can be returned after full shower water 10 is evenly covered with coating on applicator roll 15 and cancel spray, between roller and gauge stick, dry grinding damage applicator roll 15, two applicator rolls 15 are all provided with application device to prevent during spray.
As shown in Figure 2,3, the applicator roll 15 of top is mainly coated with enteric coating, and the applicator roll 15 of below is mainly used in being coated with sizing material.Gauge stick 2 and applicator roll 15 are fitted, and are mainly used in realizing controlling the coating weight of the coating on applicator roll 15, sizing material, carry out coating weight adjustment by micro-adjusting mechanism 4 to local, can change excellent pressure and carry out coating weight adjustment to full width by controlled loading air bag 5.
Claims (7)
1. the method for coating microcapsules is realized with film transfer, it is characterized in that: the method that described film transfer realizes coating microcapsules comprises: a. applicator roll (15) operates, applicator roll (15) speed reaches the speed of service, when paper tail is introduced through coating machine, open full width shower water (10), beam is closed in air cylinder driven (8) action makes gauge stick (2) and applicator roll (15) fit, gauge stick (2) rotates, loading air bag (5) pressurization impels feed pipe (6) to carry out enteric coating to roll surface, b. when material loading pressure stability, when roll surface dope layer is even, open spray limit water (12) to spray roll surface, c. when paper is after coating machine puts full width, two applicator roll laminatings, full width shower water (10) gets to automatic position, d. according to coating weight banner curve, adjusted by micro-adjusting mechanism (4), load air bag (5) pressurization adjustment coating weight.
2. realize the method for coating microcapsules as claimed in claim 1 with film transfer, it is characterized in that: described coating weight is between 4.5 ~ 5.0g/ ㎡.
3. realize the method for coating microcapsules as claimed in claim 1 with film transfer, it is characterized in that: described microcapsule formula is as follows: solvent naphtha 73.0%, leuco dye 5.0%, emulsifying agent 5.0%, cyst material 16.8%, water conservation rheological agent 0.2%.
4. realize the method for coating microcapsules as claimed in claim 3 with film transfer, it is characterized in that: described micro-leuco dye is CVL material.
5. realize the method for coating microcapsules as claimed in claim 3 with film transfer, it is characterized in that: described cyst material is melamine resin.
6. the paper machine of the method for coating microcapsules is realized with film transfer, it is characterized in that: described paper machine is provided with two applicator rolls, the framework (7) that each applicator roll (15) connects respectively is provided with application device, described application device comprise excellent bed (3) top scrape magazine (1), rod bed (3), the upper gauge stick (2) installed of rod bed (3), the excellent bed locking device (14) adjacent with excellent bed (3), one is respectively had to spray limit water (12) below the two ends of two applicator rolls, load air bag (5), load the upper micro-adjusting mechanism installed of air bag (5), the feed pipe (6) be connected with loading air bag (5), and export adjacent sealed knife (13) with feed pipe (6), water spilage tray (9) is also provided with below applicator roll, feed pipe (6) below is provided with pulp-collecting box (11), two applicator rolls (15) below is provided with full width shower water (10).
7. realize the paper machine of the method for coating microcapsules as claimed in claim 6 with film transfer, it is characterized in that: the special encapsulate applicator roll (15) of described paper machine being attached with the corrosion of resistance to enteric coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110407109.3A CN103161096B (en) | 2011-12-09 | 2011-12-09 | Method for realizing coating for microcapsules by film transfer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110407109.3A CN103161096B (en) | 2011-12-09 | 2011-12-09 | Method for realizing coating for microcapsules by film transfer |
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| CN103161096A CN103161096A (en) | 2013-06-19 |
| CN103161096B true CN103161096B (en) | 2015-07-08 |
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| CN201110407109.3A Active CN103161096B (en) | 2011-12-09 | 2011-12-09 | Method for realizing coating for microcapsules by film transfer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005263A (en) * | 2014-04-29 | 2014-08-27 | 金华盛纸业（苏州工业园区）有限公司 | No carbon required paper microcapsule and coating, and preparation methods of no carbon required paper and microcapsule |
| CN104278582B (en) * | 2014-10-15 | 2016-08-24 | 东华大学 | The microcapsule dyeing of a kind of nonwoven polypropylene fabric and printing method |
| CN106049177B (en) * | 2016-07-26 | 2017-05-24 | 福建省联盛纸业有限责任公司 | Traceless glue applicator for papermaking |
| CN106237946A (en) * | 2016-08-08 | 2016-12-21 | 湖北金民纤维材料科技有限公司 | A kind of microcapsule adapting to Deinking Pulp carbon-free body paper coating carbonless paper and production technology thereof |
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Effective date of registration: 20200513 Address after: Wuzhi county east of Henan city in Jiaozuo province accounted for 454950 of Si Jia Qiao Xi Lu Bei Co-patentee after: HENAN DAZHI PAPER EQUIPMENT INTEGRATED ENGINEERING Co.,Ltd. Patentee after: HENAN JIANGHE PAPER Co.,Ltd. Address before: Wuzhi county east of Henan city in Jiaozuo province accounted for 454950 of Si Jia Qiao Xi Lu Bei Patentee before: HENAN JIANGHE PAPER Co.,Ltd. |
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