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Application filed by Vissh Khim T IfiledCriticalVissh Khim T I
Priority to BG9036989ApriorityCriticalpatent/BG49455A1/en
Publication of BG49455A1publicationCriticalpatent/BG49455A1/en
The method is applied in paper industry. With its application, is derived a fibre material with enhanced physical-mechanical indicators and expanded opportunities for application at an increased output. According to the method, timber with solution containing Na2SO3 and Na2CO3 in proportion of 2.5:1 at an expenditure of sulphite 10-20% with respect to the dry timber, a hydromodule of 1:3 to 1:5 and temperature 176 degrees C for 40 to 80 minutes. Before boiling, the timber is treated with water solution of sodium carbonate with concentration of 10 to 20 g/l for 4 to 24 hours for 22 to 90 degrees C and hydromodule 1:4.
BG9036989A1989-11-161989-11-16Method for preparing fiber material
BG49455A1
(en)
PROCEDURE FOR THE TREATMENT OF PROTEINIC SOLUTIONS CONTAINING PIGMENTS SUCH AS, HEMINIC GROUPS OR CHLOROPHILES IN VIEW OF THEIR DECOLORATION AND PRODUCTS OBTAINED.