SU729294A1

SU729294A1 - Method of fyeing cellulose-fibre textile

Info

Publication number: SU729294A1
Application number: SU782678298A
Authority: SU
Inventors: Герман Евсеевич Кричевский; Наталия Дмитриевна Олтаржевская; Андрей Иванович Капранов
Original assignee: Московский Ордена Трудового Красного Знамени Текстильный Институт
Priority date: 1978-10-27
Filing date: 1978-10-27
Publication date: 1980-04-25

Description

Изобретение относится к области красильно-отделочного производства, а именно, к способу крашения целлюлозного текстильного материала.The invention relates to the field of dyeing and finishing production, namely, to a method for dyeing cellulosic textile material.

Известен способ крашения целлюлоз— ного текстильного материала плюсованием его составом на основе активного красителя, мочевины, щелочного агента, с последующей сушкой, термообработкой в среде горячего воздуха при температуре 140-180°С в течение 30 с - 4 мин ¹⁰и промывки в нескольких ваннах по следующему технологическому режиму: холодная проточная вода;'горячая вода (80.90¾) ; мыловка в растворе мыла при температуре, близкой к кипению; промывка горячей водой (80—90°С); промывка теплой и холодной водой [1].A known method of dyeing cellulose textile material by adding its composition based on an active dye, urea, an alkaline agent, followed by drying, heat treatment in hot air at a temperature of 140-180 ° C for 30 s - 4 min ¹⁰ and washing in several baths according to the following technological regime: cold running water; 'hot water (80.90¾); soap in a soap solution at a temperature close to boiling; washing with hot water (80–90 ° С); washing with warm and cold water [1].

Недостатком способа является низкая прочность окраски на материале к мокро— му трению (3-4 балла), обусловленная незначительной степенью фиксации красителя на материале (87,9%), а также низкая прочность его к механическому воздей— ствию (разрывное усилие — 21,3 кг, разрывное удлинение — 6,7%) и большое количество аточных вод, необходимых при промывке материала.The disadvantage of this method is the low strength of the dye on the material to wet friction (3-4 points), due to the insignificant degree of fixation of the dye on the material (87.9%), as well as its low mechanical strength (breaking strength 21, 3 kg, tensile elongation - 6.7%) and a large amount of waste water necessary for washing the material.

Цель изобретения - повышение прочности окраски на материале к мокрому трению, степени фиксации красителя на материале и прочности его' к механическому воздействию, а так же снижение количества сточных вод.The purpose of the invention is to increase the strength of the dye on the material to wet friction, the degree of fixation of the dye on the material and its strength to mechanical stress, as well as the reduction of wastewater.

Это достигается за счет тоге, что в известном способе термообработку проводят в среде мочевины при 135—140°С.This is achieved due to the fact that in the known method, the heat treatment is carried out in urea at 135-140 ° C.

Пример 1. Вискозную штапельную ткань плюсуют составом на основе 15 г/л активного красителя яркокраспого 5СХ, 30 г/л ΝαΟΗ, остальное воды. Сушат на воздухе и фиксируют в расплаве мочевины при 13 5° С в течение 5 сек и затем промывают холодной водой.Example 1. Viscose staple tissue is added with a composition based on 15 g / l of the active dye bright-5СХ, 30 g / l ΝαΝ, the rest is water. It is dried in air and fixed in a urea melt at 13 5 ° C for 5 sec and then washed with cold water.

Пример 2. Хлопчатобумажную ткань плюсуют раствором, содержащим г/л активного красителя процион яркокрасный НЗВ, 30 г/л ΝαΟΗ. Сушат на воздухе ч фиксируют в расплаве мочевины при 1.40 С в течение 10 с и промывают холодной водой.Example 2. Cotton fabric plus a solution containing g / l of active dye Procyon bright red NZV, 30 g / l ΝαΟΗ. Dried in air, h is fixed in the urea melt at 1.40 C for 10 s and washed with cold water.

Предлагаемый способ.способствует получению на материале окраски, прочной ₅к мокрому трению (4—5 баллов). Степень фиксации красителя на материале повышается с 87,9 до 91,3% и,кроме того, улучшается прочность его к механическому воздействию (разрывное усилие — щThe proposed method contributes to obtaining on the material a coloring durable ₅ to wet friction (4-5 points). The degree of fixation of the dye on the material increases from 87.9 to 91.3% and, in addition, its strength to mechanical stress is improved (breaking strength -

22,9 кг, разрывное удлинение — 22,9%), количество сточных вод снижается в 4— 5 паз.22.9 kg, tensile elongation - 22.9%), the amount of wastewater is reduced by 4-5 grooves.

Claims

The invention relates to the field of dyeing and finishing production, and specifically, to the method of dyeing cellulosic textile material. There is a known method of cellulose textile material edge plating by its composition based on active dye, urea, alkaline agent, followed by drying, heat treatment in hot air at 140–180 ° C for 30 s - 4 min and rinsing in several baths according to the following process mode: cold running water; - hot water (8O. 90x3) 5 soap in soap solution at a temperature close to boiling; flushing with hot water (8O-OO C); washing with warm and cold water. The disadvantage of this method is low color fastness on the material for wet friction (3-4 points), due to the slight degree of fixation of the dye on the material (87.9%), as well as low strength to mechanical affection (weak force - 21.3 kg, dilation elongation - 6.7%) and a large amount of wastewater required during the washing of the material. The purpose of the invention is to increase the durability of the paint on the material to wet friction, the degree of fixation of the dye on the material and its strength to mechanical stress, as well as reducing the amount of wastewater. This is achieved due to the fact that, in a known method, heat treatment is carried out in urea at 135-14 ° C. Example 1. Viscose staple fabric is supplemented with a composition based on 15 g / l of active dye, 5CX, 30 g / l of NaOH, the rest is water. It is dried in air and fixed in the urea melt for 5 seconds, and the system is rinsed with chemical water. Example

2. Cotton fabric is plus a solution containing 15 g / l of the active dye, procyon red NZV, 30 g / l NQOH, dried air / cool is fixed in the urea melt at 1.4 ° C for 10 sec and rinsed with cold water. The proposed method. Contributes to obtaining on the material of color, resistant to wet friction (4-5 points). The degree of fixation of the dye on the material increases from 87.9 to 91.3% and, moreover, its mechanical resistance improves (breaking strength 22, 9 kg, breaking elongation - 22.9%), the amount of wastewater decreases by 4 - 5 oaz. DETAILED DESCRIPTION A method of dyeing a cellulosic textile material by padding it with a composition based on an active dye and a textile agent, followed by cyujKofl, heat treatment and washing, characterized in that, in order to increase the color fastness to wet friction and to mechanical impact, As well as reducing the amount of wastewater, heat treatment is carried out in urea at 135-14C. Sources of information, accepted attention in the examination 1. Korchagin M, V., Sokolova I. M., Shikanova I., L. Laboratory practical work on chemical technology of fibrous materials. - M; Light industry, 1976, p. 181 (prototype).