SU1712191A1 - Method for producing grain imitating wood pores on paper - Google Patents

Abstract

The invention relates to the printing industry, in particular, to methods for producing texture on paper with simulated pores of wood used for furniture decoration. The invention makes it possible to simplify the technology of making paper with wood texture with "real" pores "by eliminating the operations of washing out excess impregnating composition and heat treatment on a heated roll and using the composition of printing ink containing, in May.%: Pigment 5-14; latex butadi- 50–65 styrene rubber; 10–15 protein lacquer; ceresin water paste (for s.chomu) 12–23; oligoethylIdrichsiloxane siloxane (60%) 1-3 emulsion; ethylene glycol or butylcarbitol the rest, and after varnishing the paper is directly dried. The invention allows the use of paper with a smoothness of 15-45 p. 4 table f (L

Description

The invention relates to the printing industry, in particular to a method for producing texture on paper with an imitation of the pores of wood used for furnishing furniture.

There is a known method of reproducing wood texture by printing a texture pattern with a paint based on a styrene copolymer with maleic anhydride, impregnation with a urea-formaldehyde resin solution, drying at 160-170 ° C and applying a top coat varnish and re-drying at 120-160 ° C.

This technology does not allow to obtain a paper that simulates the texture of wood with real tures.

There is a method of producing on paper texture with simulated wood pores, including operations; applying wood texture with waterborne paint, printing with water-borne paint containing lacquerous substances to form a relief image, impregnating with water composition, removing excess water, drying at 115-160 ° C varnishing with water-based varnish, passing through a heated wax, heated to 60- 100 ° С and drying at 120 - 160 ° С.

This method is multistage and allows to obtain a texture with a relief image (imitation of pores) only on paper with increased smoothness (at least 40 s).

The purpose of the invention is to simplify the technology for obtaining on paper textures from the imitation of wood holes used for furniture decoration ..;

The pigment used in the paint contains yellow iron oxide pigment GOST 18172-80, red iron oxide pigment K TU 10-602-7.7, technical carbon K-354 GOST 7885-77, pigment blue phthalocyanine GOST 6220-76; Butadiene styrene latex GOST 10564-75; protein varnish SB-3 TU TZPK 338-86; ceresin water paste I-40 {50% -on) TU-2.520-87; aqueous emulsion of siloxane oligoethyl hydride (60% -11a) TU 6-02-1037-75; ethylene glycol GOST 10164-75.

In the composition of the lacquer used. Urea-formaldehyde resin, TU. 6-10.-664-79 ;, para-toluene sulfonic acid TU 6-09-3668-76.

The paint was prepared in the bissum mill (attritor or ball mill). First, protein lacquer was loaded, then pigment and dysgag | ovaly to a particle size of not more than 0 μm, then aqueous ceresin extract, butadiene and styrene latex, aqueous oligoethylsiloxane siloxane and butylka | 1b11to were loaded. | or ethnleng., chikol and nere 1C and P5y .1i up to the study of homogeneous mass.

(The composition of K () aski is given in Table 1.

The lacquer is prepared with an R mixer by stirring in accordance with the recipe, preserve the filtered urea filter with a solution of parato; 1 uol of 1% Acid.

In accordance with the technology, on the basis of the paper, a textural drawing of the prototype ink or the ink series SG 1.10.1 was printed in one or two printed diagrams of the machine on the machine “A; ibbert Frankenthal, Germany, then a separate printing cylinder on this at the speed of 80-100 m / min, the same machine prints with the paint according to the invention, containing nigment, binder, waxy substance, water emulsion of oligoethylsiloxane and ORI} 1 and cardiovascularity, and.

Print hold.-iacb on paper, the city of which is presented in Table. 2

The use of paint allows you to find the doce and the washout unit and | the heated shaft and the impregnated paper to be directly dried, reducing the number of operations up to eight against the first prototype.

The ink during printing ensures the wetting of the printing plate for xopoHiee and the satisfaction of the “perfect” transition to the material being sealed, satisfactory fixation of the ink on the impression, absence of wiping in the roll, constancy of viscosity during the printing process (according to VZ-4), no corrosion properties no defects in non-reprints, no differences in color at the beginning and at the end of printing.

Impregnation and varnishing was carried out on a domestic production Varnish (Germany) impregnating and varnishing machine equipped with a drying device having three zones at a temperature of 115-160 ° C, web speed of 20-30 m / min for drying the imprint after impregnation and for final drying of the film after varnishing at 120-160 ° C (2 zones).

The impregnation was carried out with an impregnating compound comprising May. h: urea formaldehyde resin 100, polyester emulsion 12.5, formic acid 5, ammonium chloride (10% solution) 1.5, cumene hydroperoxide 0.0013, water up to viscosity 12-17 s according to OT-4.

Varnishing was performed with an aqueous composition containing May. %: urea-formaldehyde resin 58-67 and para-toluenesulfonic acid 6-11.

The varnish has a vitality of at least 8 hours of work, a drying time of 22 s at 120– 160 ° C.

About the presence of pores was judged by the difference in the height of the irregularities of the profile of the lacquer layer and the height of the irregularities of the profile of P1trikh by 10 points (GOST 2789-79).

The results are given in table. 3

The material obtained after varnishing (facing material, TU 130273250-11-87) complies with the technical requirements specified in TU.

The results of the tests are given in 0 table. four.

Claims (1)

Invention Formula The method of obtaining on paper texture with imitation of wood pores by printing a texture pattern with the subsequent application of printing ink containing nigment, binding, waxy substance and organic solvent, impregnated with an aqueous impregnating composition based on 0 urea-formaldehyde resin, drying at 115-160 ° C, lacquering with an aqueous composition containing urea-formaldehyde resin and para-toluene sulfonic acid, and drying a lacquered film at 120-160 ° C, characterized in that, in order to simplify the technology, As a binder, styrene butadiene rubber latex and protein varnish are introduced, 50% aqueous ceresin paste is used as a waxy substance, ethylene glycol or butylcarbitol is used as the organic solvent, and an additional 60% oligoethyl emulsion is used as the solvent. drisiloxane, in the following ratio of components of printing ink, May. %: pigment 5-14; styrene butadiene rubber latex 50- 65; protein lacquer 0-15; 50% aqueous ceresin paste (dry matter) 12-23; aqueous emulsion of oligoethylhydrile siloxane (60%) 1-3; ethylene glycol or butylcarbitol else, and after varnishing the paper is directly dried. Table 1 Paper-based facing material of the roll (TU 13-7308001-716-85) ORP-1 brand Brand ORP-2 Base paper of the company MD (Germany) table 2 17.3 17 15 15.2 45.0 Resistance to the action of water impregnating solutions, score on RTM tz-zn-ztz-i-vg Resistance to light, score, according to GOST 8702-88 Thermal stability of the ink impression in accordance with RTM 13-3lt-3l8-13-82 Resistance to contact heating according to PTM 13-31 -3l8-li (-82 Optical density of colorful prints, 6 Table 3 The color tone of the ink on the print remains unchanged. The color tone on the print does not change. 1.7) 1.5E1.78 Blue Phthalo - Red and Blue cyaninoyl iron-phthalocioxyanine