PL427094A1 - Method for improving strength properties of paper - Google Patents
Method for improving strength properties of paperInfo
- Publication number
- PL427094A1 PL427094A1 PL427094A PL42709418A PL427094A1 PL 427094 A1 PL427094 A1 PL 427094A1 PL 427094 A PL427094 A PL 427094A PL 42709418 A PL42709418 A PL 42709418A PL 427094 A1 PL427094 A1 PL 427094A1
- Authority
- PL
- Poland
- Prior art keywords
- paper
- chitosan
- solution
- concentrate
- citric acid
- Prior art date
Links
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- Paper (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób poprawy właściwości wytrzymałościowych papieru, za pomocą roztworu chitozanu i kwasu cytrynowego. Mieszanina wzmacniająca, będąca wodnym roztworem chitozanu i kwasu cytrynowego, uzyskiwana jest przez rozcieńczenie koncentratu. Koncentrat otrzymuje się przez rozpuszczenie kwasu cytrynowego w wodzie w takiej ilości, by jego stężenie procentowe wynosiło 10%, po czym dodaje się taką ilość chitozanu, by jego stężenie procentowe wynosiło 2%. Rozpuszczanie chitozanu jest procesem długotrwałym i może być przyspieszone przez ogrzanie roztworu. Otrzymany koncentrat powinien być przechowywany w możliwie niskiej temperaturze nie dłużej niż 14 dni. Po odpowiednim rozcieńczeniu koncentratu otrzymuje się roztwór, w którym stężenie chitozanu powinno wynosić co najmniej 0,1%, zaś stężenie kwasu cytrynowego co najmniej 0,5%, w procesie wzmacniania papieru roztwór ten powinien być dozowany w proporcji co najmniej 1/2 litra roztworu na 1 kilogram papieru. Zastosowanie takiego sposobu poprawy właściwości wytrzymałościowych papieru pozwala na uzyskania pożądanego rezultatu przy użyciu dużo mniejszej ilości chitozanu, co z kolei przekłada się na znaczne ograniczenie kosztów wzmocnienia papieru.The subject of the application is a method of improving the strength properties of paper using a solution of chitosan and citric acid. The strengthening mixture, which is an aqueous solution of chitosan and citric acid, is obtained by diluting the concentrate. The concentrate is obtained by dissolving citric acid in water such that the percentage concentration is 10%, and then adding chitosan so that the percentage concentration is 2%. Dissolving chitosan is a lengthy process and can be accelerated by heating the solution. The obtained concentrate should be stored at the lowest possible temperature for no longer than 14 days. After proper dilution of the concentrate, a solution is obtained in which the concentration of chitosan should be at least 0.1%, and the concentration of citric acid at least 0.5%, in the paper strengthening process this solution should be dosed in a proportion of at least 1/2 liter of the solution for 1 kilogram of paper. The use of such a method of improving the strength properties of paper allows to obtain the desired result using a much smaller amount of chitosan, which in turn translates into a significant reduction in the cost of paper reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL427094A PL237344B1 (en) | 2018-09-17 | 2018-09-17 | Method for improving strength properties of paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL427094A PL237344B1 (en) | 2018-09-17 | 2018-09-17 | Method for improving strength properties of paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL427094A1 true PL427094A1 (en) | 2020-03-23 |
| PL237344B1 PL237344B1 (en) | 2021-04-06 |
Family
ID=69888919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL427094A PL237344B1 (en) | 2018-09-17 | 2018-09-17 | Method for improving strength properties of paper |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL237344B1 (en) |
-
2018
- 2018-09-17 PL PL427094A patent/PL237344B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL237344B1 (en) | 2021-04-06 |
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