CN1294326C - Latex for coating drinking filter bag cotton paper and its preparing method - Google Patents
Latex for coating drinking filter bag cotton paper and its preparing method Download PDFInfo
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- CN1294326C CN1294326C CNB200510023313XA CN200510023313A CN1294326C CN 1294326 C CN1294326 C CN 1294326C CN B200510023313X A CNB200510023313X A CN B200510023313XA CN 200510023313 A CN200510023313 A CN 200510023313A CN 1294326 C CN1294326 C CN 1294326C
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Abstract
The present invention relates to latex for coating tissue paper of drink filtering bags, and a preparation method thereof. The latex is formed by the copolymerization of emulsifiers and initiators in an emulsion polymerization mode, and the mixed monomers of the latex are prepared from 60 to 85 wt% of vinylidene chloride, 5 to 30 wt% of acrylate monomers and 5 to 10 wt% of unsaturated fatty acid. The present invention enables the coated tissue paper to have the characteristics of high wet strength, high water permeating capacity, no toxicity, no smell, little leached substance, high performance-price ratio, etc., and is particularly suitable for coating tissue paper for extracting bags for coffee, tea, etc. The preparation method of the present invention has the advantages of simple preparation process, low cost, easy control and no environmental pollution.
Description
Technical field
The present invention relates to coating of a kind of coated paper and preparation method thereof, specifically be meant a kind of latex for coating drinking filter bag cotton paper and preparation method thereof.
Technical background
Coffee or tealeaves filter bag are made of cloth at first, used the permeable tissue paper that possesses enough wet strengths in the last few years instead and done, when tissue paper directly is soaked in the water, because extremely low, the tearing strength extreme difference of wet strength, will lose intensity after in water, soaking, neither attractive in appearance also unhygienic.So adopted on tissue paper the method for coating one deck latex afterwards, strengthen its intensity, it can be immersed in the water for a long time and continue to keep intensity, can also make tissue paper have good permeability performance simultaneously.Manufacturer uses phenylpropyl alcohol class latex that tissue paper is carried out dip coated at present, but because a large amount of higher boiling monomers such as styrene, acrylate that use, wherein the styrene boiling point is up to 146 ℃, latex is difficult to remove residual monomer, the residual quantity of monomer is than higher, smell be difficult to be heard in the process of coating, and the tissue paper after being coated with is made behind the coffee bag the more coffee taste that influences of leachable in water, and produce and use in all extremely unhygienic.Therefore be necessary to develop a kind of sanitation and hygiene, excellent performance, the latex that cost performance is high replaces existing latex.
Summary of the invention
Main purpose of the present invention is the defective that overcomes above-mentioned prior art, provides a kind of tissue paper that can make to have than high wet strength, can be not damaged medium-term and long-term immersion of water, the tearing strength height, high seepage of water and cost are low, and be nonpoisonous and tasteless, free of contamination latex for coating drinking filter bag cotton paper and preparation method thereof.
Purpose of the present invention mainly is achieved through the following technical solutions: form by emulsion polymerization way copolymerization in the presence of emulsifying agent, initator, the mix monomer component of latex is:
(1) vinylidene chloride, consumption are the 60-85% of mix monomer total amount;
(2) acrylic ester monomer, consumption are the 5-30% of mix monomer total amount;
(3) unrighted acid, consumption are the 5-10% of mix monomer total amount;
As preferably, the mix monomer component of described latex is:
(1) vinylidene chloride, consumption are the 70-80% of mix monomer total amount;
(2) acrylic ester monomer, consumption are the 10-20% of mix monomer total amount;
(3) unrighted acid, consumption are the 5-10% of mix monomer total amount;
As preferably, described acrylic ester monomer is a kind of of methyl acrylate, ethyl acrylate, n-butyl acrylate, methyl methacrylate, acrylic acid-2-ethyl caproite, glycidyl methacrylate;
As preferably, described unrighted acid is a kind of of acrylic acid, methacrylic acid;
As preferably, the used initator of described latex is redox system a kind of of ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate and sodium hydrogensulfite redox system, t-butyl hydrogen peroxide and rongalite.
As preferably, described emulsifying agent is a kind of of sodium alkyl sulfonate, sodium alkyl benzene sulfonate.
As preferably, the solid content of described latex is 5-30%, is preferably 10-20%.
The preparation method's of latex for coating drinking filter bag cotton paper of the present invention processing step is:
(1) take by weighing 80 parts of deionized waters, 2 parts of emulsifying agents join in the reactor, stir;
(2) with air in the abundant replacement reaction kettle of nitrogen;
(3) heat up, when temperature rises to 40 ℃, add 0.011 part of organic peroxide;
(4) continue to heat up, when temperature rises to 50-55 ℃, add 50 parts of mix monomers, 0.099 part of organic peroxide and 0.088 part of rongalite by measuring pump, the reinforced time of mix monomer is 8 hours, and the reinforced time of initator is 10 hours;
(5) continue adding initator 1 hour when mix monomer adds the back that finishes, continue to react to pressure remaining unchanged, after pressure remained unchanged 30 minutes, stop to add initator;
(6) add material after, be warming up to 70 ℃, adopt vacuum to take off the suction method and remove residual monomer, the time is 3 hours;
(7) be cooled to 35 ℃ after with the above stainless steel wire net filtration of 100 orders, promptly obtain latex for coating drinking filter bag cotton paper of the present invention.
As preferably, the temperature in the described processing step (4) is preferably 52-53 ℃.
Latex of the present invention is formed by the emulsion polymerization way copolymerization by vinylidene chloride, acrylic ester monomer and part unrighted acid, compared with prior art have: the tissue paper of coating is had than high wet strength, can be not damaged medium-term and long-term immersion of water, the tearing strength height, the infiltration water ability is strong, and because vinylidene chloride boiling point low (32 ℃ of boiling points) very easily removes residual monomer, characteristics such as the few and cost performance height of nonpoisonous and tasteless, the leachable thing of latex, the utmost point is applicable to bag for extracting beverage tissue paper surface coated such as coffee, tealeaves; Preparation method's technology of latex of the present invention is simple, and cost is low, is easy to control, solvent for use is water, and the latex of preparation is nontoxic, do not fire, and is free from environmental pollution.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1:
Title quantity (gram)
The still material:
Deionized water 80
Sodium alkyl sulfonate 2
Organic peroxide 0.011
Mix monomer:
Vinylidene chloride (VDC) 85
Methacrylic acid (MAA) 9
Butyl acrylate (BA) 6
Initator:
Initiator A: t-butyl hydrogen peroxide 0.099
Deionized water 10
Initiator B: rongalite 0.08
Deionized water 10
The solid content of latex is 30%.
Specific operation process: earlier 80 gram deionized waters, 2 gram sodium alkyl sulfonates are added to the air inside logical nitrogen is fully replaced in the reactor, heat up then, when temperature rises to 40 ℃, add 0.011 gram organic peroxide.When temperature rises to 51 ℃, continuously mix monomer and initiator A, B are joined respectively in the reactor by measuring pump, maintain the temperature at simultaneously 50-51 ℃ constant.The control mix monomer time of squeezing into is 8 hours, and the time of squeezing into of initator is 10 hours.After finishing, the mix monomer adding continues to add initator 1 hour, pressure will remain unchanged after will reducing to necessarily this moment, after pressure remained unchanged 30 minutes, stop to add initator, reactor temperature is risen to 70 ℃, take off the suction method with vacuum and deviate from residual monomer 3 hours, cool to then below 35 ℃, the stainless steel screen pack above with 100 orders filters discharging.
Embodiment 2:
Repeat embodiment 1, the difference of present embodiment and embodiment 1 is that the component of mix monomer is: vinylidene chloride (VDC), consumption are 70 grams; (2) methacrylic acid (MAA), consumption are 20 grams; (3) butyl acrylate (BA), consumption are 10 grams.The solid content of latex is 10%.When temperature rises to 53 ℃, continuously mix monomer and initiator A, B are joined respectively in the reactor by measuring pump, maintain the temperature at simultaneously 52-53 ℃ constant.The latex favourable identity of preparation.
Embodiment 3:
Repeat embodiment 1, the difference of present embodiment and embodiment 1 is that the component of mix monomer is: vinylidene chloride (VDC), consumption are 80 grams; (2) acrylic acid (AA), consumption are 15 grams; (3) butyl acrylate (BA), consumption are 5 grams.The solid content of latex is 16%.When temperature rises to 53 ℃, continuously mix monomer and initiator A, B are joined respectively in the reactor by measuring pump, maintain the temperature at simultaneously 52-53 ℃ constant.The latex favourable identity of preparation.
Embodiment 4:
Repeat embodiment 1, the difference of present embodiment and embodiment 1 is that the component of mix monomer is: vinylidene chloride (VDC), consumption are 75 grams; (2) acrylic acid (AA), consumption are 17 grams; (3) glycidyl acrylate (GMA), consumption are 8 grams.The solid content of latex is 20%.When temperature rises to 53 ℃, continuously mix monomer and initiator A, B are joined respectively in the reactor by measuring pump, maintain the temperature at simultaneously 52-53 ℃ constant.The latex favourable identity of preparation.
Embodiment 5:
Repeat embodiment 1, the difference of present embodiment and embodiment 1 is that the component of mix monomer is: vinylidene chloride (VDC), consumption are 61 grams; (2) acrylic acid (AA), consumption are 30 grams; (3) glycidyl methacrylate (GMA), consumption are 9 grams.The solid content of latex is 5%.When temperature rises to 55 ℃, continuously mix monomer and initiator A, B are joined respectively in the reactor by measuring pump, maintain the temperature at simultaneously 54-55 ℃ constant.
The monomer consumption is listed as follows the performance impact of latex among the embodiment 1-5:
| Monomer (1) (weight portion) | Monomer (2) (weight portion) | Monomer (3) (weight portion) | Coating back tissue paper performance | ||
| Comparative Examples | 1 | VDC | MAA | BA | Hardness is too high, and pliability is poor, and permeability performance is poor |
| 90 | 4 | 6 | |||
| Embodiment | 1 | VDC | MAA | BA | Pliability is better, permeability performance is good, and wet strength is higher |
| 85 | 9 | 6 | |||
| 2 | VDC | MAA | BA | Pliability is good, and permeability performance is good, the wet strength height | |
| 70 | 20 | 10 | |||
| 3 | VDC | AA | BA | Pliability is good, and permeability performance is good, the wet strength height | |
| 80 | 15 | 5 | |||
| 4 | VDC | AA | GMA |
| 75 | 17 | 8 | Pliability is good, and permeability performance is good, the wet strength height | ||
| 5 | VDC | AA | GMA | Pliability is better, and permeability performance is good, and wet strength is higher | |
| 61 | 30 | 9 |
After being coated on the tissue paper, the latex that embodiment obtains can increase the wet strength of paper, can be not damaged medium-term and long-term immersion of water, and paper tear intensity height, the permeance property excellence of water, paper is embrittlement not, not flavescence, sanitation and hygiene, cost performance height.Tissue paper behind this dipping is to do the good materials of drinking filter bag such as coffee bag or tea-bag.
Claims (10)
1. a latex for coating drinking filter bag cotton paper forms by emulsion polymerization way copolymerization in the presence of emulsifying agent, initator, it is characterized in that the mix monomer component of latex is:
(1) vinylidene chloride, consumption are the 60-85% of mix monomer total amount;
(2) acrylic ester monomer, consumption are the 5-30% of mix monomer total amount;
(3) unrighted acid, consumption are the 5-10% of mix monomer total amount.
2. according to the described a kind of latex for coating drinking filter bag cotton paper of claim 1, it is characterized in that the mix monomer component of described latex is:
(1) vinylidene chloride, consumption are the 70-80% of mix monomer total amount;
(2) acrylic ester monomer, consumption are the 10-20% of mix monomer total amount;
(3) unrighted acid, consumption are the 5-10% of mix monomer total amount.
3. according to claim 1 or 2 described a kind of latex for coating drinking filter bag cotton paper, it is characterized in that described acrylic ester monomer is a kind of of methyl acrylate, ethyl acrylate, n-butyl acrylate, methyl methacrylate, acrylic acid-2-ethyl caproite, glycidyl methacrylate.
4. according to claim 1 or 2 described latex for coating drinking filter bag cotton paper, it is characterized in that described unrighted acid is a kind of of acrylic acid, methacrylic acid.
5. according to claim 1 or 2 described latex for coating drinking filter bag cotton paper, it is characterized in that the used initator of described latex is redox system a kind of of ammonium persulfate, sodium peroxydisulfate, potassium peroxydisulfate and sodium hydrogensulfite redox system, t-butyl hydrogen peroxide and rongalite.
6. according to claim 1 or 2 described latex for coating drinking filter bag cotton paper, it is characterized in that described emulsifying agent is a kind of of sodium alkyl sulfonate, sodium alkyl benzene sulfonate.
7. according to claim 1 or 2 described latex for coating drinking filter bag cotton paper, the solid content that it is characterized in that described latex is 5-30%.
8. according to claim 1 or 2 described latex for coating drinking filter bag cotton paper, the solid content that it is characterized in that described latex is 10-20%.
9. method for preparing latex for coating drinking filter bag cotton paper according to claim 1 and 2 is characterized in that processing step is:
(1) take by weighing 80 parts of deionized waters, 2 parts of emulsifying agents join in the reactor, stir;
(2) with air in the abundant replacement reaction kettle of nitrogen;
(3) heat up, when temperature rises to 40 ℃, add 0.011 part of organic peroxide;
(4) continue to heat up, when temperature rises to 50-55 ℃, add 50 parts of mix monomers, 0.099 part of organic peroxide and 0.088 part of rongalite by measuring pump, the reinforced time of mix monomer is 8 hours, and the reinforced time of initator is 10 hours;
(5) continue adding initator 1 hour when mix monomer adds the back that finishes, continue to react to pressure remaining unchanged, after pressure remained unchanged 30 minutes, stop to add initator;
(6) add material after, be warming up to 70 ℃, adopt vacuum to take off the method for analysing and remove residual monomer, the time is 3 hours;
(7) be cooled to 35 ℃ after with the above stainless steel wire net filtration of 100 orders, promptly obtain latex for coating drinking filter bag cotton paper of the present invention.
10. according to the preparation method of the described latex for coating drinking filter bag cotton paper of claim 9, it is characterized in that the temperature in the described processing step (4) is 52-53 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510023313XA CN1294326C (en) | 2005-01-11 | 2005-01-11 | Latex for coating drinking filter bag cotton paper and its preparing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510023313XA CN1294326C (en) | 2005-01-11 | 2005-01-11 | Latex for coating drinking filter bag cotton paper and its preparing method |
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| CN1715559A CN1715559A (en) | 2006-01-04 |
| CN1294326C true CN1294326C (en) | 2007-01-10 |
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| CNB200510023313XA Expired - Fee Related CN1294326C (en) | 2005-01-11 | 2005-01-11 | Latex for coating drinking filter bag cotton paper and its preparing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986583B (en) * | 2006-12-07 | 2010-08-11 | 浙江野风塑胶有限公司 | Water PVDC latex specially for painting special cloth and its preparing method |
| CN103044603B (en) * | 2012-12-26 | 2016-03-16 | 海南必凯水性涂料有限公司 | Food packaging latex and its preparation method and application |
| CN103275653A (en) * | 2013-05-13 | 2013-09-04 | 浙江科冠聚合物有限公司 | Acrylic plastic-plastic composite latex |
| CN103275260B (en) * | 2013-05-13 | 2015-03-25 | 浙江科冠聚合物有限公司 | Preparation method of acrylic plastic-plastic composite latex |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184819A (en) * | 1996-10-02 | 1998-06-17 | 巴斯福股份公司 | Prepn. of emulsion homopolymers and copolymers and device therefor |
| US6566470B2 (en) * | 2000-04-14 | 2003-05-20 | Ciba Specialty Chemicals Corporation | Fluorinated polymeric paper sizes and soil-release agents |
| CN1523164A (en) * | 2003-09-10 | 2004-08-25 | 东阳市野风塑胶有限公司 | Process for preparing disposable paper dinnerware latex paint and method of applying |
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2005
- 2005-01-11 CN CNB200510023313XA patent/CN1294326C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184819A (en) * | 1996-10-02 | 1998-06-17 | 巴斯福股份公司 | Prepn. of emulsion homopolymers and copolymers and device therefor |
| US6566470B2 (en) * | 2000-04-14 | 2003-05-20 | Ciba Specialty Chemicals Corporation | Fluorinated polymeric paper sizes and soil-release agents |
| CN1523164A (en) * | 2003-09-10 | 2004-08-25 | 东阳市野风塑胶有限公司 | Process for preparing disposable paper dinnerware latex paint and method of applying |
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|---|---|
| CN1715559A (en) | 2006-01-04 |
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Owner name: ZHEJIANG YEFENG PLASTIC CEMENT CO., LTD. Free format text: FORMER NAME OR ADDRESS: YEFENG PLASTIC CO., LTD., DONGYANG CITY |
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Address after: Beijiang Industrial Zone, Song Town, Zhejiang, Dongyang Patentee after: Zhejiang Wildwind Plastic Co., Ltd. Address before: Beijiang Industrial Zone, Dongyang, Zhejiang Patentee before: Dongyang Yefeng Plastics Co., Ltd. |
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Owner name: ZHEJIANG SUNLAND PACKAGE SCIENCE AND TECHNOLOGY CO Free format text: FORMER OWNER: ZHEJIANG WILDWIND PLASTIC CO., LTD. Effective date: 20110623 |
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Free format text: CORRECT: ADDRESS; FROM: 322105 BEIJIANG INDUSTRIAL ZONE, GESHAN TOWN, DONGYANG CITY, ZHEJIANG PROVINCE TO: 322105 ZHEJIANG SUNLAND PACKAGE SCIENCE AND TECHNOLOGY CO., LTD., BEIJIANG INDUSTRIAL ZONE, GESHAN TOWN, DONGYANG CITY, ZHEJIANG PROVINCE |
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Effective date of registration: 20110623 Address after: 322105, Zhejiang, Dongyang, Hebei Province, Beijiang River Industrial Zone, Zhejiang Rand Packaging Technology Co., Ltd. Patentee after: Zhejiang Sen Packing Technology Co., Ltd. Address before: 322105 Beijiang Industrial Zone, Song Town, Zhejiang, Dongyang Patentee before: Zhejiang Wildwind Plastic Co., Ltd. |
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Granted publication date: 20070110 Termination date: 20140111 |