SU761650A1 - Decorative lining material and method of its manufacture - Google Patents

Description

The invention relates to decorative-facing material and method of its production and can be used in the printing industry for the manufacture of book covers, as well as _h for the manufacture of other decorative facing materials, for example, for the registration of binders of clean goods.

Are paper-based decorative facing materials with a nitrocellulose coating containing a film former — 22% nitro-mastic, solvents (ethyl acetate, butyl acetate), diluent — ethyl alcohol, plasticizers — castor oil and / or dibutyl phthalate, L3 _? 5 - diethylene glycol ester, and C ₇ -C ₉ synthetic fatty acids and. other [1] '

The method of obtaining this material is as follows.

_ζ Pigments are introduced into the coating layer to give it a certain color and covering power. On the basis of the combination of the nutrition of certain colors and in various quantities, more than 120 soil grains of various colors and shades are obtained. The technological process of producing a paper material with a nitrocellulose coating consists of the following operations: mixing pigments with pl2

styler - getting simple colorings; mixing and rubbing simple color schemes - obtaining complex colors of a certain color; the introduction of a complex to ⁵ ler Nitromastik - getting ground mass; application of ground mass to the paper base (2 lines), drying after applying each line; preparation of nitrocellulose lacquer primer; application of varnish primer, drying; stamping (drawing · drawing); rolling and sorting of finished products.

The disadvantage of the material with a nitrocellulose coating is harmfulness, since it is not dangerous to manufacture due to the use of organic solvents and thinners.

Also known binding material with. nitropolyamide coating, it has a higher rate of abrasion, due to the application of polyamide varnish on the coating (2].

The disadvantage of a binding material with a nitro-polyamide coating on a paper basis is its tendency to twist ™.

The closest prototype [3] of the proposed decorative facing material is coated paper containing, in weight. h .:.

7

"food

^ -5th

761650

White pigment (co'alIn in suspension)

Water color pigment Glycerin

Caseino-latex glue Water

80—90

10—20

'. 10- and "

12—16

Up to a density of 1.26–4.30 and a viscosity of 12 s (according to ШShkozi- ‘Metru VZ-4)

The disadvantage of paper with casein-Latex coating is low water resistance, marco and stickiness. In addition to the tog, oh, the raw material includes food raw materials · -casein. , ·

The method of producing paper with casein-latex coating consists of the following operations:

1) Preparation of kaolin suspension, 'weight. including: '' ¹ '

100

Kaolin is chemically 'bleached. 'Hexametaphosphate

sodium. 0.4

Water. To a concentration of 750g / l

.......... ShcheYabch ..... 0.1

The estimated amount of water is poured into the hydraulic diluent, kaolin and hexametaphosphate are loaded, then alkali is poured.

The contents are mixed {· '

2) Preparation of casein-lethex glue, weight. including:

Casein

____________________ Ammoniac water

7 water

F’igol-crystalline Latex SKS-65GP

100

15

500

Ί

100

Kgzyoy '^,;'load in water and mix before its swelling. In swollen casein

'while stirring', ammonia water is poured until casein is completely dissolved. Then phenol is added, which has been previously stretched in water in the ratio 4: b, and in go: the prepared casein glue is poured 4 latex in the ratio of the required formulation. 7 3) Preparation of the covering suspension

FOR SOIL. Ύ - ί- ^;

In kraskomegpalku pour calculated

7 quantity / kaolin suspensions and load color pigments. After ί hour mixing, glycerin is added, and lastly, caseino-latex glue.

4) Preparation of the soil, weight. including:

Casein 15% con '7? · ’·"' - 60 centration 15 Latex SKS-65GP 45 "- Carboxy sodium salt silmethylcellulose ten' · Hexamethylenetetramine 25 65

Paraffin-stearin * emulsion 10

Water Up to 11c viscosity

'’' 7? '(by viscose 5 VZ-4 meter).

In casein-latex mixture is introduced sequentially all the components according to the recipe and in the last turn serves

10 water, the amount of which is determined by the viscosity of the varnish; Go :. ',:

5) The application of finishing and lacquer primer is carried out on a paper dyeing machine with a brushing device connected to a fexton drying.

6) The embossing (embossing) is made on the embossing calenders. ’/ 77n GO -. . ·.

However, this method of obtaining labor ² ® mock and does not provide a waterproof coating. , ·

The invention invention is the creation of a decorative-facing (bookbinding) material on a paper basis with improved quality by eliminating the curl of the material.

This goal is achieved by the fact that in decorative and facing: material, mainly binding cardboard, on a paper basis with a coating containing synthetic rubber latex, white pigment, glycerin; organic dye and carbamide resin / according to the invention coating

35 additionally contains a defoamer. And from "’ Verditel "a carbamide resin selected from the group consisting of ammonium chloride and formic acid, in the following ratio of components, May. %:

'40X /'. ..7; 7'C 'D; X;., / '.....' '.' '; / 7 / '·

Latex. 50-69 ’4.

White pigment ’20-24

7 ....... Organic dye 3.0–4.5

45 Urea Resin 5.0-5.5

Antifoam. 0.5-0.7 - ·

Hardener 0.025–0.03 (5

Glycerin .77. 7 '. Rest.

This goal is also achieved by the method of manufacturing a decorative facing material, which includes the preparation of a latex composition of synthetic rubber, white pigment, glycerin, or55 tonic dye and carbamide resin, "applying this composition on a paper base and heat treatment in which, according to the invention , an antifoaming agent and a carbamide resin hardener are additionally introduced into the composition of the coating, and the white pigment is preliminarily used for the “tIraiu7'na” glutsener, and the organic dye is also carby a bottom resin with a hardener is introduced into the obtained "in this case; mass, followed by the introduction of this mixture.

761650

five

latex, and heat treatment of the material is carried out at 60-80 ° C.

The essence of the proposed method lies in the fact that in the manufacture of water-based latex coating white ⁵ pigment, before being introduced into the mixture, is pre-rubbed on glycerin, organic dyes and carbamide resin are injected into the rubbed white pigment, and then the resulting mixture blossomed in latex, with antifoam. The mashing of white pigment on glycerin increases the elasticity of the coating, provides the desired viscosity of the coating composition and provides the possibility of long-term storage of the pigmented pigment.

- The proposed flowchart preparing aqueous latex paint coating ensures that no coagulation of the latex and ²⁰ po- luchenie uniform composition. Important is the introduction of the resulting mixture of whitened white. pigment, organic dyes, carbamide resin in the mixture

· - latex with a defoamer, and not vice versa, so 25 as with the introduction of a mixture of latex with antifoam into the mixture of clogged white pigment, organic dyes and urea resin with a hardener, latex can occur. White pimento is capped with glycerin in a 2: 1 ratio, which gives optimal results.

It is proposed to use lithopone or titanium dioxide as “white pigment”, “since It is these pigments that provide opacity of the mass.

After coating, the paper substrate can additionally be applied.

varnish, in particular nitrocellulose, silicone, polyamide and others. This increases the resistance of the coating. After applying the latex coating or latex coating and varnish, the material is kept at room temperature for 1 to 3 days, and then the material is processed on an embossing calender at. 60-80 ° C. Exposure of the material at room temperature before processing on embossing calenders increases the resistance of the coating. After applying the lacquer and / or before processing on the embossing calenders, processing can be carried out on smooth calenders at 60–80 ° C. This further increases the water resistance of the coating.

Decorative facing, for example, a binding material on a paper basis, is a paper base, covered with a layer of water-paint latex coating of the following composition, May. %:

Latex 50 39.

White spirit 0,25—0,35

Drying oil 0,25—0,35

White pigment 20-24

Glycerin 10.0-12.0

Organic dyes 3,0-4,5

Urea resin 5.0-5.5

Hardener (from the group ^: ammonium chloride -

formic acid 0.025–0.035

Free glycerin 2,475–3,265

In the table .. 1..and 2.danny examples of formulations of water-colored latex coating and physico-mechanical properties of binding materials coated with these compounds ..

. Table 1

Top Coat Ingredient

Latex (BSK-65/3) Antifoam:

Drying oil

White aparite

White pigment Organic dyes Carbamide resin Hardener:

Ammonium Chloride Glycerin

According to the invention, a method of manufacturing a decorative facing, for example, binding material ’consists of the following operations: white grouting (lithopone or titanium dioxide) on glycerin with a 2: 1 ratio; the introduction of organic dyes and a carbamide resin with a hardener previously introduced into it (from the group ammonium chloride — formic acid) to the wiped white pigment; Latex mixing with foam material. Formulation material, May. %

one '2 3 69 56 60 (X26 ' 0.3 0.36 0ts2b 20 ' 0.3 0.36 21.2 04 3 4.1 4.5 b 5 * 4 6.5 0,005 0.03 0) 035 2.475 ^: .— ¹ -

, telem (white spirit with linseed oil); the introduction of 40 mixtures of pigments and carbamide resin with a hardener in the mixture of latex with antifoam; coating the paper substrate; exposure at room temperature for 1-3 days; material processing

45 on the embossing calenders at 60-80 ° C.

If necessary before embossing

material on embossing calenders, it can be processed on a smooth calender. ·

table 2

Indicator

Weight 1 m ² , g

Destructive force 'in machine direction, N (kg), not less

Twistable

Sleepiness - Impenetrability, with not less Strength

Traces of paint Moisture,%

761650

prototype

The material in the formulation 2

1.36

5.1

90 °

Insignificant

, 1 (20. Barely visible. Change of color

132

8.2

130 8, b

.130

8.3

None (no lift, no edges) None

No I No | Not

. No change

Absent

Techno-economical advantages of the proposed “decorative-decorative antifoam material and the way of obtaining 'are' to simplify the technological process and reduce the cost of the material obtained in comparison with known binding materials.

The working conditions are improved and safety is improved, since the use of harmful and flammable organic solvents and thinners is eliminated due to their replacement by water, ...; ·. _ν . ·.

There is no need for mashing of color tGgments in the preparation of various colors. . . ......

The technological process is simplified by reducing the number of ground passages when applying the composition to paper. · At

As can be seen from the data table. 2, the advantage of the proposed material with a water-painted latex coating “compared to the prototype” - a material with latex-cashesg coating (GOST 8589-75 grade G) is that it provides high water resistance of the coating, the absence of “twist” marts, high strength.

This improves the quality of the material and at the same time simplifies the process of its production. ; ' . -,

The material additionally contains a carbamide resin hardener selected from the group containing ammonium chloride and formic acid, the following ratio of components,

With

May

ten

15

20

25

thirty

Claims (2)

F o rm u l a i z o b ro t / s ny i ^; 1. Decorative facing material, predominantly binding cardboard, on a paper basis, with a coating containing synthetic rubber latex, white pigment, glycerin, organic dye and carbamide resin, o tl and h and h. with me so that in order to improve the quality of ma35 40 Editor J, Volkova % · ' Latex White Pigment Organic Dye Carbamide 'resin Defoamer Hardener G Litserin 5020-59 -24 3.0-4.5 5.0-5.5 0.5-0.7 0.025—0.035 Rest. 2. A method of manufacturing a decorative facing material on π. 1, including the preparation of a coating composition of synthetic rubber latex, white pygmy, glycerin, organic dye and urea resin, applying this composition on a paper base and heat treatment, characterized in that an antifoaming agent and hardener of urea resin are additionally introduced into the coating composition; the white pigment is preliminarily rubbed on glycerin, and the organic dye and urea resin C is introduced into the resulting m’assu with a hardener, followed by the introduction of the latex into this mixture, and the heat treatment of the material is carried out at 60-80 ° C.