CN1109084A - Moistureproof coating for paper products and its preparation - Google Patents
Moistureproof coating for paper products and its preparation Download PDFInfo
- Publication number
- CN1109084A CN1109084A CN 95101218 CN95101218A CN1109084A CN 1109084 A CN1109084 A CN 1109084A CN 95101218 CN95101218 CN 95101218 CN 95101218 A CN95101218 A CN 95101218A CN 1109084 A CN1109084 A CN 1109084A
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- paper products
- water
- moistureproof coating
- preparation
- coating
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Abstract
The moisture-proof coating for paper is prepared with paraffine as the main raw material, water as the solvent, low-molecular polyethylene wax and stearic acid through heating and stirring. It features no toxicity, corrosion, odour and combustion because water replaces the organic solvent. It also has the advantages of low cost, and good moisture-proof effect.
Description
The present invention relates to technical field of coatings, relate to a kind of protection against the tide that is used for paper product, glazing paint and preparation method thereof specifically.
Moistureproof product for paper product has numerous species.Moisture-proof coating be behind gelatine, water glass, varnish and anti-humidity oil the 4th generation product.It is solvent that existing moisture-proof coating all adopts organic substance, the moisture-proof coating organic solvent that contains aromatic hydrocarbons among the open CN1040999A of routine Chinese patent; The open CN1041377A of Chinese patent adopts a large amount of formulated moisture-proof coatings of organic solvent such as ketone, acetone, gasoline, oil of bananas; These organic solvents are all toxic, peculiar smell, inflammable, harmful, contaminate environment are arranged; Use is dangerous, and the cost height, and brushing after drying speed is slow.
The purpose of this invention is to provide a kind of novel moistureproof coating for paper products, this coating has replaced traditional organic solvent with water as solvent, the characteristics that have nontoxic, fast drying, do not burn, moisture effect are good.
It is the preparation method of the moistureproof coating for paper products of solvent with water that another object of the present invention provides a kind of, and the raw material sources that this method adopts are extensive, and facility investment is little, and technology is simple.
Moisture-proof coating of the present invention is to be main raw material with paraffin, with water as solvent, cooperates other auxiliary materials, and it is to constitute A by following four kinds of compositions) paraffin; B) low-molecular polyethylene wax (molecular weight 1800～2000); C) rosin series emulsifying agent; D) stearic acid.The umber that each component has following weight is grouped into,
A) paraffin 10～14
B) low-molecular polyethylene wax (molecular weight 1800～2000) 7～12
C) the rosin series emulsifying agent 3～6
D) stearic acid 0.5～2
E) water surplus
Paraffin in the moisture-proof coating of the present invention has excellent humidity resistance after making emulsion; Adopt the rosin series emulsifying agent can make low-molecular polyethylene wax emulsification, so both satisfied disposable emulsible requirement, kept the advantage of polyolefin film again; And stearic acid has the effect of tackify and PH conditioning agent.
Moistureproof glazing paint preparation technology of the present invention is as follows.
Above-mentioned A, B, four kinds of raw materials of C, D are mixed in proportion, under constantly stirring, be warming up to 150 ℃, add sodium hydroxide again, regulate PH=7～9; Continue then to be warming up to 170 ℃, kept 1 hour, add and continue behind 70 moisture content to stir 50 minutes, then make emulsion.
The moistureproof coating for paper products that adopts preparation technology of the present invention to make has following performance after tested.
| Interventions Requested | Quality index | The result |
| Fully dry (min) viscosity (S) solids content (%) adhesive force (level) heat resistance of outward appearance smell pH value dry tack free drying time (min) (℃) resistance to water resin added (g/m) | Slightly rosin, fragrance 5～7 cloudy daies 12～18 of 7～9 fine days are no more than unchanged immersion below 60 15～26 (s) 27～32 4～5 50 ℃ and did not have infiltration 30～45 in 3 hours for shallow palm fibre or brown emulsion | Qualified 8～8.5 6 15 60 23 27.5 4 qualified 40 |
Embodiment:
With 14 parts in paraffin, 7 parts of polyethylene waxs (molecular weight 2000), 4 parts of rosin, 1 part of stearic acid.Mix the back under constantly stirring.Be warming up to 150 ℃.Slowly add concentration amounts 25%, temperature 80-90 ℃ hot sodium hydroxide solution, adjusting pH value to 7～9.Continue to heat up,, kept 1 hour, slowly add 70 parts of 90-100 ℃ of hot water again, continue to stir and kept 50 minutes, be chilled to room temperature, then make product in 170 ℃.
Of the present invention take paraffin as primary raw material, with water as solvent, be aided with emulsion and preparation technology thereof that other auxiliary materials are made, mainly contain following advantage:
(1) replaced organic solvent traditional in the coating with water, such as benzene, toluene, acetone, oil of bananas, gasoline, carbon tetrachloride etc. so that product safety nontoxic, do not harm human body, free from environmental pollution.
(2) fast drying. After 5～10 minutes, can carry out next procedure, fast 5 times than general oil polish, fast 30～50 times than solvent reducible coatings.
(3) good stability. Solids coatings of the present invention can reach more than 30%, and mean particle dia is less than 0.2 μ m, and stability reached more than 1 year.
(4) with low cost, equipment investment is little.
Claims (3)
1, a kind of moistureproof coating for paper products is characterized in that with paraffin being main raw material, as solvent, cooperates low-molecular polyethylene wax, rosin series emulsifying agent, hard ester acid to make through adding gentle the stirring with water.
2, the described moistureproof coating for paper products of claim 1 is characterized in that being made up of following: (parts by weight)
A) paraffin 10～14
B) low-molecular polyethylene wax (molecular weight 1800～2000) 7～12
C) the rosin series emulsifying agent 3～6
D) stearic acid 0.5～2
E) water surplus
3, the preparation method of a kind of claim 1,2 described moistureproof coating for paper products is characterized in that the mixed of the four kinds of raw materials of A, B, C, D by claim 2, is warming up to 150 ℃ under stirring not continuing, and adds sodium hydroxide again, regulates PH=7～9; Continue then to be warming up to 170 ℃, kept 1 hour, continue to stir 50 minutes behind the water of adding surplus, then make emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95101218 CN1109084A (en) | 1995-01-25 | 1995-01-25 | Moistureproof coating for paper products and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95101218 CN1109084A (en) | 1995-01-25 | 1995-01-25 | Moistureproof coating for paper products and its preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1109084A true CN1109084A (en) | 1995-09-27 |
Family
ID=5073848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95101218 Pending CN1109084A (en) | 1995-01-25 | 1995-01-25 | Moistureproof coating for paper products and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109084A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999648B (en) * | 2006-01-09 | 2010-08-04 | 钟文军 | Alcohol soluble paper printing polishing oil |
| CN101666058B (en) * | 2009-09-23 | 2011-05-04 | 际华三五零二职业装有限公司 | Method for preparing damp-proof oil for military corrugated case |
| CN102433797A (en) * | 2011-10-24 | 2012-05-02 | 吴江市天源塑胶有限公司 | Moisture-proof coating for paper products |
| CN101172782B (en) * | 2007-10-17 | 2012-06-13 | 中材高新材料股份有限公司 | Boric oxide fibre moisture-proof coating material and method of manufacturing the same |
| CN102720093A (en) * | 2012-06-21 | 2012-10-10 | 李正友 | Oxidized polyethylene wax emulsion water-repellent agent and preparation method thereof |
| CN105019303A (en) * | 2015-06-26 | 2015-11-04 | 安徽省三环纸业(集团)有限公司 | Preparation method of moistureproof tipping paper |
-
1995
- 1995-01-25 CN CN 95101218 patent/CN1109084A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999648B (en) * | 2006-01-09 | 2010-08-04 | 钟文军 | Alcohol soluble paper printing polishing oil |
| CN101172782B (en) * | 2007-10-17 | 2012-06-13 | 中材高新材料股份有限公司 | Boric oxide fibre moisture-proof coating material and method of manufacturing the same |
| CN101666058B (en) * | 2009-09-23 | 2011-05-04 | 际华三五零二职业装有限公司 | Method for preparing damp-proof oil for military corrugated case |
| CN102433797A (en) * | 2011-10-24 | 2012-05-02 | 吴江市天源塑胶有限公司 | Moisture-proof coating for paper products |
| CN102720093A (en) * | 2012-06-21 | 2012-10-10 | 李正友 | Oxidized polyethylene wax emulsion water-repellent agent and preparation method thereof |
| CN105019303A (en) * | 2015-06-26 | 2015-11-04 | 安徽省三环纸业(集团)有限公司 | Preparation method of moistureproof tipping paper |
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