SU918374A1 - Parer-sizing composition - Google Patents

Description

(54) PAPER MIXTURE FOR PAPER

one

The invention relates to impregnating compositions for the production of biologically active materials intended for use in medicine, as well as for the production of sanitary articles, packages, containers.

Impregnating compositions are known which contain, as bactericides, which slow down the growth of pathogenic microorganisms, an aqueous solution of the sodium salt of hexachlorophene with alkali metals, which together with precipitates and fillers are introduced into paper or paper pulp in the form of solution G11

However, these bacterium components mainly possess bacteriostatic, but not bactericidal, properties. In addition, paper impregnated with this compound is toxic, porous and durable, and has low breathability.

A paper impregnation composition containing polyvinyl alcohol, starch and / or polyacrylamide resin is also known.

23. However, the paper impregnated with such a composition loses its properties when heated above 100 ° C due to decomposition of polyacrylamide.

The purpose of the invention is to suppress the growth of bacteria.

Stapvi-yeococous aureus, Proteus, Sdct. coei, you. subti is, bc with. , p-yoc ntieuw PseudOTno pab cjepUQjinosoi.

ten

The goal is achieved by the fact that the impregnating composition, coci of starch and polyvinyl alcohol, additionally contains N-substituted imides of maleopimaric acid of the general formula

five

 °

20

soy

where R is diethylamino or piperidyl group; R is the ammonium ion of the formula, where, ft has the given values, with the following content of components, min.%: Starch. , 5-15 Polyvinyl alcohol 1O-25 N –substituted imide of maleopimaric acid 60–85 N –substituted imides of maleopimaric acid, known as fungicides, also develops a broad spectrum bactericidal activity. The addition of polyvinyl alcohol and starch to the bactericide solution ensures its effective fixing and uniform distribution on the surface of the base paper, as well as increases the porosity and breathability of the paper and its strength characteristics. The introduction of polyvinyl alcohol together with a bactericide inhibits the diffusion of the bactericide into the environment, thus increasing the antimicrobial properties of paper. To prepare the impregnating composition, the estimated amount of the bactericide in the form of a 5% aqueous solution is taken in which the required amount of polyvinyl alcohol and starch is added. The impregnation material is dry paper base paper.

The composition of the fiber,%: cotton

  1 m, g Explosive load, N

Resistance to bursting, N / cm

1OO1OO1OO

481247t2. 48t2

29,229,329,4

10, 81O, 5 molding. The impregnation is carried out by dipping the paper sheet while it is moving in a bath with an impregnating composition heated to about 4 ° -50 ° C. After that, the impregnated base paper is squeezed to a content of 2 ° -25% dry matter and subjected to convective drying at 100 ° C. In tab. 1 and 2 show the specific impregnating compositions and properties of the paper processed by them, respectively. As follows from the test results, the paper treated with the proposed impregnating composition has a wide spectrum of antimicrobial action. In particular, the paper acts on the cyanotic. A common bacillus (6.P owaneym), which only some bactericides usually suppress and bactericides based on dichlorophene and hexachlorophene salts do not work at all. The diameter of the zone of inhibition of the growth of bolus organisms fully meets the requirements of medicine. The paper impregnated with the proposed composition is mechanically durable and makes it possible to produce from it both packaging materials and various napkins, filters, masks, respirators and other medical products. Table

Breathability, dm / m-s

Capillary absorption, mm for 10 min

Claims (2)

Bactericidal (diameter of the zone of growth inhibition of microorganisms), MI Impregnation is carried out in a laboratory machine for the Vukhop type at 50 ° C, drying at 100 ° C. Claims An impregnating compound for paper, which holds starch and polyvinyl alcohol, is distinguished by the fact that, in order to inhibit the growth of bacteria stepti eococcus aureue, Proteos w8 ejaris, Bact., You. , bao.m ojftteT- um, Boot, p ohm pvitp, Rseeoyoglo "th aeroqciftosa, the composition additionally contains N-labeled imides of maleopimaric acid of the general formula Continued gab. 2 880 883 88O 879 12, .6 12.5 12.6 12.6 coatings where ft is diethylamino or piperidyl group R is an ammonium ion of the formula Npy, where R has the indicated values, in the following ratio of components, wt.%: Starch 5-15 Polyvinyl alcohol 10-25 N is the ester imide of maleopimaric acid 6O-85 Sources of information taken into account during the examination 1. USSR author's certificate NO 411192, cl. 21 H 5/22, 1974. 2.Fl tte D.M. Paper Properties. M. Lesna industrialization, 197O, p. 7О, 17О (prototype).