SU549542A1 - Paper sizing compound - Google Patents

Description

(54) POSTABLE FOR PAPER STICKING

one

Isobrotelie etnosnchs to iroi.shi; ushumagi and mozhsg G) I1 isyoldovano at gameplay and glued 1sh, h, ov paper, iznrimsr, whether; whose No. 1, pschi No. 2, reip; .i.noii,), mute, wallpaper and 1.d.

BoiibiiiHHCfHo of well-known rijxjKJieiffiajoiinix substances osio yano on its use in its compositions clinging the axisone; en-j / ioiioil, excursive 1Ls | oli and / sh kx motifacin and siogetic polymers in the form of sozh.

The weight of the gene is saoav for sizing paper, which contains rosin and the product of aaaiyH styrene and maleic anhydride in the form of sodium salt (11.

The use of this sizing arrangement does not allow obtaining paper with improved physical and mechanical parameters.

In addition, paper, sizing known composition, has a high cost.

The purpose of the invention is to improve the physicomechanical characteristics of the paper (thinning, breaking) and reducing the consumption of rosin.

This is achieved by the fact that the paper sizing composition containing rosin and synthetic copolymer contains, as synthetic resin () and amyllar fiber and nitro, with a ratio of components, in wt.%: Rosin 10-90 Washed fiber or grains 1 & 90

The nitro yarn fiber is a copolymer containing in%%: acrloniters 90 93; metascrylate 6-8; Itaconic acid 1-2.

To obtain the saponified synthetic polymer, it is possible to use fiber waste Nitron or its dilution.

Example. Gluing the composition is obtained by mixing rosin glue (90%) using 1SPO ($ nitron fiber (10%) in the form of a sodium1H1 salt, a thorium copolymer containing (wt.%): Acrylic nitrite 92.7; methyl acrylate 6 and itaconic acid 1.36. Prepared sizing The composition is introduced into a paper sheet containing bleached pulp, ground to 37 ° W and kaolin filler.

PRI mme R 2. A sizing composition containing (in wt.%): Rosin glue 40, saponified fiber nitrone 60, is introduced into the paper box of Example 1.

PRI me R 3. A sizing composition containing (in wt.%): Rosin glue 20, saponified fiber nitrone 80, is introduced into the pulp according to an example.

PRI me R 4. Sizing composition containing 3232

90 10

23

2. Rosin 50 Stromal 50

3980

21

thirty

70

3640

20

An analysis of the results presented in Table 1 suggests that with the introduction of saponified fiber Nitron into the sizing composition, the length and fracture of the paper are significantly greater than the breaking length and fracture of the paper, glued both to nifol glue and glue, which, apart from rosin , the saponified soothing agent was introduced (in wt.%): kasfolny glue 10, the rich fiber nitron 90, was introduced into the pulp according to example 1.

The results of testing paper glued in examples 1-4, are presented in table 1.

Table 1

903950

29 10

40

604500

38

20

804750

40

I

ten

904000

39

polymer of styrene and maleic anhydride. The control of the breaking length of paper glued by the proposed composition, according to example 2, shows that in the aging process, the gaping length of the paper increases by more than one and a half times compared to paper glued with gum rosin (see Table 2),

Claims (1)

Increase the length of the paper during long-term storage (sizing of the proposed composition and rosin glue) Claims of the Invention The composition for sizing paper containing rosin and a synthetic copolymer, which is based on the fact that the paper has improved physical and mechanical properties of the paper and reduced consumption of rosin as a synthetic copolymer saponified fiber Table 2 20 Nitron, in the following ratio of components, introduced. %: Rosin10-90 Omniene fiber nitron10-90 25Sources of information taken into account during the examination:. USSR author's certificate M. cl. D 21 H 3/38, 1974.