SU617468A1

SU617468A1 - Composition for colouring book edges

Info

Publication number: SU617468A1
Application number: SU762422117A
Authority: SU
Inventors: Ирина Павловна Китнер; Людмила Александровна Григорьева; Людмила Петровна Мыслицкая; Ольга Александровна Щипакина; Лариса Валентиновна Иванкович
Priority date: 1976-11-22
Filing date: 1976-11-22
Publication date: 1978-07-30

Description

1one

Изобретение относитс к области полиграфической промышленности, а именно к композиции дл закраски обрезов книг.The invention relates to the field of the printing industry, namely to a composition for painting edges of books.

Известна композици дл закраски обрезов книг, содержаща 1-3 вес. % органического красител -пигмента, 1-10 вес. % св зующего - поливинилового спирта и остальное - воду 1.Known composition for painting the edges of books containing 1-3 weight. % organic dye pigment, 1-10 weight. % binder - polyvinyl alcohol and the rest - water 1.

Недостатком данной композиции вл етс высока отмарываемость, равна 18- 24%, а также низка водостойкость, составл юща 27-31,5% и неравномерность окраски .The disadvantage of this composition is a high otmaryvaemost, equal to 18- 24%, as well as low water resistance, amounting to 27-31.5% and unevenness of color.

Цель изобретени - уменьшение отмарывани , а также повышение водостойкости и равномерности окраски.The purpose of the invention is to reduce mark-off, as well as to increase the water resistance and uniformity of color.

Цель достигаетс тем, что предлагаема композици в качестве св зующего содержит аддукт канифоли, этерифицированный пентаэритритом, сополимер стирола, метилметакрилата , бутилакрилата и 2-этилгексилакрилата , при соотношении их соответственно 50:70-30:20-10:5-10:5 или продукт конденсации меламина с формальдегидом при соотношении их соответственно 50 : 70-50 : 30, а в качестве красител - пр мой, активный или кислотный, при следующем содержании компонентов, вес. %:The goal is achieved by the fact that the proposed composition as a binder contains an adduct of rosin esterified with pentaerythritol, a copolymer of styrene, methyl methacrylate, butyl acrylate and 2-ethyl hexyl acrylate, with a ratio of 50: 70-30: 20-10: 5-10: 5, or the product condensation of melamine with formaldehyde at a ratio of 50: 70-50: 30, respectively, and direct, active or acid as a dye, with the following content of components, weight. %:

Краситель1-3Dye1-3

Св зующее1-5Binding1-5

ВодаОстальноеWaterEverything

Пример 1. Цавеску красител пр мого желтого К светопрочного размешивают в 5-кратном количестве 5%-ного раствора кальцинированной воды и разбавл ют гор чей водой (95°С) до концентрации 2%. После охлаждени раствора до комнатной температуры и выстаивани в течение 1 ч в раствор красител добавл ют лак на основе 30-60 вес. % аддукта канифоли, этерифицированного пентаэритритом, 25- 50 вес. % изопропилового спирта и остальное - 25%-ного раствора аммиака и перемешивают .Example 1. A curtain of direct yellow dye K is refractory to lightfastness in a 5-fold amount of a 5% solution of soda water and diluted with hot water (95 ° C) to a concentration of 2%. After cooling the solution to room temperature and standing for 1 hour, a lacquer based on 30-60 wt. Is added to the dye solution. % adduct rosin esterified with pentaerythritol, 25-50 weight. % isopropyl alcohol and the rest - 25% ammonia solution and mix.

Рецептура композиции, вес. %: Краситель пр мой желтый КComposition recipe, weight. %: Dye pr my yellow K

светопрочный1light resistant1

Сода NagCOs (5%-ныйSoda NagCOs (5%

раствор)5solution) 5

Лак3Lac3

ВодаОстальноеWaterEverything

Claims

Example

2. In a method described in the first example, a direct yellow dye is dissolved. To the refractory, and after cooling and standing the solution, varnish is added. Composition recipe, weight. %: Direct yellow dye To refractory2 Soda NagCOs (5% solution) 5 Varnish3 WaterOther Varnish is prepared by dissolving the resin in isopropyl alcohol in the following formulation. %: Styrene copolymer with methyl methacrylate, butyl acrylate and 2-ethylhexyl acrylate57 Isopropyl alcohol28.5 25% ammonia solution NH4OH14.5 Ammonia solution is added with an excess amount of pre-mixed and dissolved in isopropyl alcohol to pH 9. Continue synthesis. . Example

3. Acid red 2G dye is dissolved in water at 60 ° C and a resin based on a condensation product of melamine with formaldehyde is added and stirred for 5 minutes. Composition recipe, weight. %: Acid red dye 2G1 Resin5 WaterOthers According to the invention, the marking off is reduced from 18-24 to 0.7-2%, and the water resistance of the stain increases from 31.5 to 61% while the uniformity of the coloring improves. Claims of the invention Composition for painting books cuts, containing an organic dye, binding to water, characterized in that, in order to reduce, as well as improve water resistance and color uniformity, as the binder composition contains an adduct of rosin esterified with pentaerythritol, styrene copolymer , methyl methacrylate, butyl acrylate and 2-ethylhexyl acrylate at a ratio of 50: 70–30: 20–10: 5–10: 5, respectively, or a condensation product of melamine with formaldehyde at a ratio of 50: 70–50: 30, respectively as a dye, direct, active or acid, with the following content of components, wt. %: Dye1-3 Binder1-5 WaterExtrous Sources of information taken into account during the examination 1. Printing production, publishing house "Art, M., 1962, No. 4, p. 29.