SU566898A1 - Paper sizing composition - Google Patents

Description

As a washing agent, soda ash.

Example 1. Paper sizing is prepared containing, Extraction Rosin, clarified l-cresol-formaldehyde-block-cresol polysulfide

Tall Rosin

Paraffin

Soda Ash

This composition is introduced into the paper pulp in the amount of 2.7% of the weight of absolutely dry fiber, and then the paper is produced on a Rapid-Kettei machine weighing 80 g / m.

In parallel, they receive papers glued with gum rosin, taken in the same quantity.

Samples of the papers obtained are tested according to standard methods.

The results are shown in Table. one.

Table 1

Example 2. Paper pulp consisting of 100% bleached sulphite pulp is treated with sizing compositions (2.5% by weight of absolutely dry fiber) containing, by weight. %:

Extraction clarified

I modified rosin (EMOC)

Tall Rosin

Paraffin

Soda (NsCOa)

Extraction modified clarified alkylphenol formaldehyde Example 3. Paper pulp consisting of 100% bleached sulphite pulp and filled with 10% kaolin is treated with a sizing composition (2.5% by weight of absolutely dry fiber) containing, by weight. %;

I. EMOC56,7

Tall Rosin 24.3 Paraffin8.1

Calcined od10,9

block propylphenol polysulfide rosin50

Tallova modified rosin30

Paraffin5

Soda (NaaCOs) 15.

From the obtained paper pulp, paper was prepared on the Rapid-Ketten apparatus, weighing 80 g / m. In parallel, produce paper, which is glued extraction modified clarified rosin (25 g / t).

Samples of the papers obtained are tested according to standard methods. The results are presented in table. 2

table 2

EMOK50

Tall Rosin 25

Paraffin10

Soda15

MOQ50

Tall Rosin 20

Paraffin15

Soda15

EMOC45

Tall Rosin 20

Paraffin24

Soda11 Paper obtained on the Rapid-Ketten apparatus weighing 80 g / m2 is cast from the obtained paper masses. At the same time, paper, glued with a known composition, is obtained, containing them, by weight. %:

Example 4. A different amount of sizing compositions based on a mixture containing, by weight, is introduced into a fibrous suspension consisting of 100% white pulp sulphite. %:

EMOK50

Tallova Rosin24

Paraffin10

Soda (Ma2COz) 16

Paper pulp is filled with kaolin to

ash content of paper 10%; glue and nanofiller are fixed by introducing various amounts of aluminum sulfate AB (804) 3.

From the resulting paper pulp, paper is cast on a Ranid-Ketten machine weighing 80 g / m2.

In parallel, receive paper, glued with livic rosin.

The test results of paper samples are presented in Table. four.

Table 4 EOMC60 Tall Rosin25 Soda (NasCOs) 15 Samples of the papers obtained are tested according to standard methods. The results are given in table. 3. Table 3