SU681141A1 - Process for the manufacture of paper and cardboard for laminated plastics - Google Patents
Process for the manufacture of paper and cardboard for laminated plasticsInfo
- Publication number
- SU681141A1 SU681141A1 SU772484663A SU2484663A SU681141A1 SU 681141 A1 SU681141 A1 SU 681141A1 SU 772484663 A SU772484663 A SU 772484663A SU 2484663 A SU2484663 A SU 2484663A SU 681141 A1 SU681141 A1 SU 681141A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- resin
- water
- plastics
- paper
- minutes
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/48—Condensation polymers of aldehydes or ketones with phenols
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Description
л етс возможным, так кдк полное химическое св зывание отвердител со смолой привело бы к переводу лы КЗ термопластичного в термореактивное состо ние и исключило бы возможность дальнейшего прессовани бумаги. Наиболее целесообразно, чтобы с новолаком прореагировало 3075% гексаметилентетрамина.It is possible, since the cdc full chemical bonding of the hardener to the resin would lead to the conversion of the thermoplastic short-circuit fiber to a thermoreactive state and would exclude the possibility of further pressing the paper. It is most advisable that 3075% of hexamethylenetetramine be reacted with the Novolac.
Цель изобретени - уменьшение загр знени сточных вод при получении бумаги или картона, наполненных порошкообразной фенолформальдегидной смолой новолачного типа и отвердител ,, и повышение эффективности процесса.The purpose of the invention is to reduce wastewater contamination in the production of paper or cardboard filled with powdered phenol-formaldehyde resin novolac type and hardener, and to increase the efficiency of the process.
Это достигаетс тем, что в известном способе получени бумаги или картона дл слоистых пластиков путем диспергировани в воде волокнистых материалов, диспергировани в воде композиции на основе порошкообразной фенолформальдегидной смолы новолачного типа и отвердител с последующим введением коагул нта, смешени полученных дисперсий, введени флокул нта и отлива полотна, в качестве отвердител используют параформ в количестве 10-15% от массы новолачной смолы. Дл ускорени процесса отверждени новолачной смолы в nopomKooapysHsre композицию могут б. введены водонерастворимые метилольные производные меламина в количестве 10-12% от массы смолы.This is achieved in that in the known method of producing paper or cardboard for laminated plastics by dispersing fibrous materials in water, dispersing in water a composition based on powdered phenol-formaldehyde resin of Novolac type and hardening agent, followed by the introduction of coagulant, mixing the resulting dispersions, introducing flocculant and pouring canvas, as a hardener using paraform in the amount of 10-15% by weight of novolac resin. To accelerate the curing process of the Novolac resin in the nopomKooapysHsre composition b. Water-insoluble methylol derivatives of melamine were introduced in the amount of 10-12% by weight of the resin.
Пример 1. Способ получени бумаги осуществл етс следующим образом . Готов т суспензию целлюлозы на основе светогорской небеленой сульфатной целлюлозы марки НС-1, размолотой до .Р. Готов т дисперсию на основе 100 вес,ч. порошкообразной новолачной смолы марки СФ 01221 и 10 вес,ч. параформа (ТУ 6-09-3208-73). Количество порошкообразного продукта составл ет 20% отExample 1. A method for making paper is carried out as follows. A suspension of cellulose is prepared on the basis of Svetogorsk unbleached sulphate pulp of grade NS-1, ground to .P. Preparing a dispersion based on 100 weight, h. powdered Novolac resin brand SF 01221 and 10 weight, h. paraform (TU 6-09-3208-73). The amount of powdered product is 20% of
массы целлюлозы. К дисперсии смолы добавл ют квасцы (коахул нт) дл создани рН 3,8.pulp mass. Alum (coahul nt) is added to the resin dispersion to create a pH of 3.8.
После смешени дисперсии целлюлозы и смолы pfi добавлением щелочи поднимают до значени 5,3 и отливают бумагу массой 150 . добавлении флокул нта-полиакриламида в количестве 0,5%. Содер-ание смолы в полученной отливке 18%.After the dispersion of the pulp and the pfi resin is mixed by adding alkali, it is raised to a value of 5.3 and the paper weighing 150 is cast. adding flocta nta-polyacrylamide in the amount of 0.5%. The content of the resin in the resulting casting is 18%.
В аналогичных услови х бумаги отливают в соответствии с прототипом.Under similar conditions, the paper is cast in accordance with the prototype.
В обоих случа х провод т анализ сточных вод на содержание гексаметилентетрамина и формальдегида (так как в воде параформ гидролизуетс 5 до формальдегида). Полученные данные приведены в таблице.In both cases, sewage is analyzed for the content of hexamethylenetetramine and formaldehyde (as in the water, paraforms are hydrolyzed 5 to formaldehyde). The data obtained are shown in the table.
Пример 2. 13 лабораторных услови х бумагу отливают массой 190 г/м на основе той же композиции, Q .но содержащей 15% параформа и 10% метилольных производных меламина. Соотношение целлюлозы и порошкообразного продукта составл ет 100:80.Example 2. In 13 laboratory conditions, the paper is cast with a mass of 190 g / m based on the same composition, but containing 15% paraform and 10% methyl melamine derivatives. The ratio of cellulose and powdered product is 100: 80.
В дисперсии смолы добавлением квасцов создают рН 4,3. Отливают при рН 5,4, Содержание смолы в полученной отливке 43,5%.In the resin dispersion, the addition of alum creates a pH of 4.3. Cast at pH 5.4, the resin Content in the resulting casting 43.5%.
Параллельно был произведен отлив бумаги по способу-прототипу. Результаты анализа сточных вод приведены в таблице.At the same time, the paper was produced by the prototype method. The results of the analysis of wastewater are shown in the table.
Пример З.В лабораторных услови х отливают картон массой 260 г/м, содержащий 50% смолы. Способ осуществл ют аналогично примеру 1, за исключением того, что соотношение в бумажной массе целлюлозы и порошкообразного продукта составл -«ет 100:100.Example Z. In laboratory conditions, a cardboard weighing 260 g / m containing 50% resin is cast. The method is carried out analogously to example 1, except that the ratio in the paper mass of the pulp and the powdered product is - 100: 100.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772484663A SU681141A1 (en) | 1977-05-12 | 1977-05-12 | Process for the manufacture of paper and cardboard for laminated plastics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772484663A SU681141A1 (en) | 1977-05-12 | 1977-05-12 | Process for the manufacture of paper and cardboard for laminated plastics |
Publications (1)
Publication Number | Publication Date |
---|---|
SU681141A1 true SU681141A1 (en) | 1979-08-29 |
Family
ID=20708438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772484663A SU681141A1 (en) | 1977-05-12 | 1977-05-12 | Process for the manufacture of paper and cardboard for laminated plastics |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU681141A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0773319A1 (en) * | 1995-11-08 | 1997-05-14 | Nalco Chemical Company | Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids |
-
1977
- 1977-05-12 SU SU772484663A patent/SU681141A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0773319A1 (en) * | 1995-11-08 | 1997-05-14 | Nalco Chemical Company | Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids |
US6048438A (en) * | 1995-11-08 | 2000-04-11 | Nalco Chemical Company | Method to enhance the performance of polymers and copolymers of acrylamide as flocculants and retention aids |
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