SU644895A1 - Paper mass preparation method - Google Patents
Paper mass preparation methodInfo
- Publication number
- SU644895A1 SU644895A1 SU772458468A SU2458468A SU644895A1 SU 644895 A1 SU644895 A1 SU 644895A1 SU 772458468 A SU772458468 A SU 772458468A SU 2458468 A SU2458468 A SU 2458468A SU 644895 A1 SU644895 A1 SU 644895A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mass preparation
- paper mass
- paper
- preparation
- suspension
- Prior art date
Links
Landscapes
- Paper (AREA)
Description
под действием образовавшейс при гидролизе гидроокиси алюмини . На этом процесс подготовки композиции заканчиваетс . Пример осуществлени способа в лабораторных услови х. В качестве объекта исследовани выбрана писча бумага № 1. Дл приготовлени отливок используют беленую сульфатную целлюлозу. В целлюлозу при посто нном перемешивании мешалкой ввод т расчетное количество кле . После 15 мин перемешивани добавл ют сернокислый алюминий в виде суспензии концентрацией 700 г/л. Клееную массу перемешивают в течение 0,5, 3 и 5 мин дл осаждени клеевых частиц и закреплени их наunder the action of aluminum hydroxide formed by hydrolysis. This completes the process of preparing the composition. An example implementation of the method in laboratory conditions. Writing paper No. 1 was chosen as the object of study. Bleached sulphate pulp was used for the preparation of castings. With constant stirring, the calculated amount of glue is introduced into the cellulose. After 15 minutes of stirring, aluminum sulphate is added in the form of a suspension of 700 g / l. The glued mass is stirred for 0.5, 3 and 5 minutes to precipitate the adhesive particles and fix them on
волокнах. Затем добавл ют суспензию наполнител и производ т отлив, прессование и сушку бумаги на листоотливном аппарате типа ЛОА-2.fibers. Then, a suspension of the filler is added and the paper is cast, pressed and dried on a LOA-2 type sheet machine.
При испытании образцов определ ют показатели механической прочности, зольность отливок по ГОСТу 7629-66 и степень проклейки по методу Кобба.When testing samples, the mechanical strength indicators, the ash content of castings according to GOST 7629-66 and the degree of sizing according to the Cobb method are determined.
Дл сравнени были испытаны образцы бумаги, бумажна масса которых изготовлена по известному способу, при этом концентраци сернокислого алюмини составл ла 100 г/л.For comparison, paper samples whose paper weight was manufactured by a known method were tested, with an aluminum sulphate concentration of 100 g / l.
Результаты лабораторных испытаний приведены в таблице.The results of laboratory tests are shown in the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772458468A SU644895A1 (en) | 1977-03-01 | 1977-03-01 | Paper mass preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772458468A SU644895A1 (en) | 1977-03-01 | 1977-03-01 | Paper mass preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU644895A1 true SU644895A1 (en) | 1979-01-30 |
Family
ID=20697822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772458468A SU644895A1 (en) | 1977-03-01 | 1977-03-01 | Paper mass preparation method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU644895A1 (en) |
-
1977
- 1977-03-01 SU SU772458468A patent/SU644895A1/en active
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