RU2508425C2 - Composition for printing textile materials - Google Patents

Abstract

FIELD: textiles, paper.

SUBSTANCE: composition for printing textile materials is proposed, comprising the interference pigment based on silica particles with nanodimensional layers successively deposited of metal oxides with the controlled refractive indices. The composition also contains a substance which destroys the background dye, sodium carbonate with sodium formaldehyde at a ratio of 1:4, butyl acrylic acid ester, the condensation product of formaldehyde with urea, a thickener and water. The composition comprises 8% aqueous solution of polygalactomannan as the thickener.

EFFECT: maintenance of strength of the printed textile material using reduction discharge due to forming on the surface of the film of the binder.

1 tbl, 12 ex

Description

The invention relates to the field of chemical technology of fibrous materials and can be used in the coloring processes of textile materials, namely to obtain special effects on textile materials.

A known composition for printing textile materials with pigments, containing a pigment, a thickening agent is Akremos-402 preparation, which is a copolymer of (meth) acrylic monomers obtained by emulsion polymerization, a binder is Ruzin-14 preparation, which is a multicomponent copolymer of butyl methacrylate with glycidyl methacrylate, isobenyl , itaconic acid and styrene obtained by emulsion polymerization, and water. The invention improves the stability of dyes to all types of physico-chemical and physico-mechanical treatments, provides the ability to use the composition for textile materials of different chemical composition and texture, and also to exclude clogging of mesh patterns and sticking to the shafts of technological equipment. RF patent No. 2387748, IPC D06P 1/52, D06P 3/34, D06P 3/58, D06P 3/82, published: 04/27/2010.

A special pearlescent effect can be obtained by using a composition containing an aqueous anionic dispersion of polyurethane based on a diisocyanate polyester and a chain extender, which is the product of the reaction of hydroxyalkylated xylitol with maleic anhydride (30%) 41.1-53.8%, glycazine neutralized 5.5-7.3%, ammonium chloride 0.5-0.7%, ammonium dichromate 0.1-0.2% and polyvinyl alcohol (10%), the rest is up to 100%. The fabric is printed with the indicated composition, dried and heat-treated at 150 ° C for 3 minutes. A glossy pattern is obtained, the character of which varies depending on the lighting from silky matte to sparkling. Patent No. 2024665, IPC D06P 1/54, D06P 1/10, published: 12/15/1994.

Closest to the invention is a composition for printing textile materials, presented in the "method of coloring on a colored background of textile material" by applying a printing composition containing a dye, a substance that destroys the background dye, water and a thickener, drying, steaming in saturated steam and washing, characterized the fact that the printing composition is applied to a textile material containing a naturally colored flax fiber, active and / or direct dyes are introduced into the composition as a dye, as things CTBA destroying background dye, - a hydrogen peroxide stabilizer and optionally hydrogen peroxide at the following ratio of components of the composition, g / kg dye - 0.2-10.0; hydrogen peroxide (30%) - 10-100; stabilizer congestion of hydrogen peroxide - 10-100; water - 50-200; thickener - up to 1000, and drying is carried out to a residual moisture content of the printed material of 20-60%. The technical result is the creation of a method for obtaining on a gray background of textile material pure bright colors of a wide range of colors - from light to dark tones. The disadvantages of the composition include: the instability of peroxide solutions; the possibility of oxidative destruction of the fiber and, as a consequence, a decrease in the strength of the textile material; the instability of some classes of dyes to the action of peroxide, and thereby limiting the ability of coloring of textile materials. Patent No. 2142031, IPC D06P 5/15, D06P 3/58, published: 11.27.99.

The technical result of the claimed technical solution is to eliminate these drawbacks, namely, the preservation of the strength of the printed textile material when using recovery etching due to the formation of a binder film on its surface.

The problem is achieved in that the composition for printing dyed textile materials, including a dye, a substance that destroys the background dye, a thickener and water, characterized in that it additionally contains butyl ether of acrylic acid, a product of the condensation of urea with formaldehyde, and as a dye interference pigments based on particles of silicon oxide with sequentially deposited nanosized layers of metal oxides with adjustable refractive indices, and as the substance that destructs the background dye is sodium carbonate with sodium formaldehyde sulfoxylate in a ratio of 1: 4 in the following ratio of components (g / kg): pigment dye 50-70, butyl ester of acrylic acid 80-120, urea condensation product with formaldehyde 10-30, sodium formaldehyde sulfoxylate 80-120, sodium carbonate - 20-30, water - 20-30, and an aqueous 8% solution of polygalactomanan - up to 1000.

The ingredients mentioned above are known individually, but have not been used together before. Only the claimed combination of features ensures the achievement of the technical result indicated above. To implement the method, the following reagents are used. Inorganic pigments are used as a coloring matter, the color of which is a result of light interference. Pigments are flakes of silicon oxide coated with metal oxide coatings with different refractive indices. A feature of the composition is the stability of the coloring matter with respect to the reducing agent.

The following method is known for producing interference pigments: a method for producing interference pigment by alternately applying a coating of a metal oxide with a high refractive index and a metal oxide with a low refractive index on SiO _y flakes using a wet process by hydrolysis of the corresponding water-soluble metal compounds, separation, drying and optionally calcining the pigment thus obtained, as well as a method of manufacturing a pigment, wherein the SiO _y flakes suspended in cf. de containing water and / or an organic solvent, in the presence of a metal compound and the metal compound is deposited on the SiO _y flakes by addition of a reducing agent. Application for invention No. 2005115065, published 02/10/2006.

Sodium formaldehyde sulfoxylate is used as the etching agent. Chemical description: Sodium salt of a sulfinic acid derivative. Product Description: Reducing agent for direct printing with vat dyes, as well as an etching agent for white and color etching on cellulose fabric and for pigment etching.

As a thickening agent in this development, a natural thickener polygalactomannan is used, which has the following properties: a natural product, used for printing textile materials of various nature, stable in the presence of acids, therefore it can be used for etching printing, combined with textile auxiliary materials for dyeing, printing, etching print. The film of printing ink obtained after thermal fixation does not have rigidity, the viscous-flowing properties allow it to be used for all types of printing machines.

Viscosity: 8% solution (G-8) 35000-40000 cps Chemical composition: Polygalactomannan Ionic character: Nonionic Appearance: Yellow powder pH: 6-7 (8% solution) Solubility: Soluble in cold water

One of the most important components included in the printing composition is a binder for pigment printing, which has the following characteristics: it provides a soft neck for any pigment printing, reduces the required amount of thickener introduced into pigment paste, can be used on machines for all types of pigment printing (rotational , flat templates), and also provides maximum durability to wet machining and friction.

Chemical composition: Acrylic copolymer emulsion Ionic character: Anionic - Nonionic Appearance: Milk white emulsion pH: 5.0-7.0 Viscosity (25 ° C): 10 cps (maximum) Characteristics of the resulting film: Soft, elastic Molecular structure: Mesh

The method of preparation of the composition is that the thickener is prepared separately in advance, since it takes time for it to swell; the remaining components are introduced sequentially except for the crosslinker, which is introduced last. When preparing printing ink, the use of low-speed mixers with an average speed of 80-100 rpm is sufficient. The proposed composition is used on existing types of printing machines, for example, with flat mesh patterns, the fixation of the pigment composition on the textile material is carried out on a typical drying, drying-tentering and stabilization equipment.

The printing of textile material is carried out on a printing machine with flat mesh patterns of the company "Zimmer". The web to be printed is loaded from a roll or from a “book” onto a tensioner, into a pulling device, onto a conveyor roller or into a compensator, and then introduced onto a printing ribbon. Turn on the mechanism of advancement of the tape, after adjusting the specified rapport and speed. The canvas introduced onto the conveyor belt coated with an adhesive is glued onto it using pressure rollers. The tape moves the canvas, bringing it under the patterns. At the moment the tape stops, the templates are automatically lowered onto the canvas, the mechanisms of movement of the squeegee are activated, which wipe the printing ink through the template. At the end of the rake passes, the patterns rise and the web moves further by the size of the rapport.

If necessary, the drying device is switched on. The printed web is removed from the tape by the roller of the fabric conveyor of the dryer, conveyed through the drying chamber by the conveyor after drying with hot air, leaves it for a self-storage bag, which is folded into a trolley.

After printing, the fabric is heat treated for 3 minutes at a temperature of 170-180 ° C or for 5 minutes at a temperature of 140-150 ° C. After spinning, the web is subjected to final drying on a drying and spreading machine of Elitex company.

Determination of the color resistance to friction is carried out according to GOST 9733.27-83. The difference in color ΔE is determined at the thresholds of color difference between the color of the background and the etched printed pattern on a Color 15 spectrophotometer from Gretag Macbeth. The breaking load is determined according to GOST 16218.5-93.

Table analysis

In the range of boundary values of the claimed composition, the technical result indicated above is simultaneously achieved, namely, preserving the strength of the printed textile material, achieving high color effects, characterized by the indices of different colors given in this table, due to the stability of the dye used to the components of the etching composition, as well as achieving stability composition as a whole.

The increase in the content of pigment dye over 70 g / kg is impractical, since the specified quality indicators are achieved at a given concentration.

Claims (1)

Composition for printing textile materials, including a dye, a substance that destroys the background dye, a thickener and water, characterized in that it further comprises butyl ether of acrylic acid, a product of the condensation of urea with formaldehyde, as a dye, interference pigments based on silicon oxide particles with sequentially deposited by nanosized layers of metal oxides with adjustable refractive indices, and as a substance that destroys the background dye, sodium carbonate with ormaldegidsulfoksilatom sodium in a ratio of 1: 4, with the following component ratio, g / kg:
specified pigment dye 50-70 acrylic acid butyl ether 80-120 urea-formaldehyde condensation product 10-30 sodium formaldehyde sulfoxylate 80-120 sodium carbonate 20-30 water 20-30 thickener - 8% aqueous solution of polygalactomannan up to 1000