RU2001177C1 - Method for ornamented electrically flocculated cloth making - Google Patents

Description

DEG-1 resin based on the product of the interaction of epichlorohydrin with diethylene glycol (TU 6-05-1823-77).

Resin DEG-1 has the following characteristics:

Rna molecule

mass240-260

Epoxy content

groups24%

General content

chlorine 2%

Ion content

chlorine 0.075%

Hydroxyl content

groups 4-5%.

In addition, the adhesive composition contains an antifoam BA based on a mixture of monoalkyl ethers of polyethylene and polypropylene glycols (propinol B-400 AI) with polymethylsiloxane (liquid No. 131-85) with the addition of xylan-0 and syntanol DT-2. (TU 6-14-07-37-76), a nonionic surfactant neonol П1013-3 based on a mixture of polyethylene glycol esters of primary fatty alcohols fraction with an average degree of hydroxyethylation 3 (TU 38.103625- 87) and cationic action preparation triamone based on tris (2-hydroxyethyl) ammonium sulfate (TU 6-14-1059-83).

The method is illustrated by examples and a table that shows the performance and quality indicators of the materials obtained depending on the specific process conditions. The circulation is defined as the maximum possible number of adhesive prints of 0.1x10 cm in size, and the print sharpness as a percentage of the area of the adhesive print strip to the area of the printed strip on the template. The viscosity of the adhesive composition is determined on a Reostest 2 viscometer at a shear rate of 437 s.

Dry and wet abrasion resistance of samples of flocked materials is evaluated on an IT-ZM device (GOST 8512-57), and stiffness on a PZhU-12M device (GOST 8977-74).

Example (prototype). In a glass with a volume of 250 cm3 pour MBM-3 latex and, with constant stirring, add the appropriate amounts of AK-216 thickener, BA anti-foaming agents,

an aqueous solution of ammonia to pH 8 10 and epoxy resin DEG-1. The composition with the help of a doctor, performing a reciprocating motion, through flat

mesh patterns with print sizes of (10x10) cm and (0.1x10) cm are applied to the textile substrate. For the template, use a No. 25 polyamide mesh. A fingerprint is obtained in one pass of the squeegee (back and forth). The time interval between two consecutive printing operations is 80-90 seconds. A substrate with an adhesive print is floated 15-20 with viscose pile 0.5 mm long and a linear density of 0.33 Tex in an electric field with an electric field strength of 4-5 kV / cm. heat treated first at 95 ° C for 10 minutes and then at 145 ° C for 5 minutes.

Example 2-20. Pile material

receive, as described in example 1. but when using the adhesive composition and heat treatment modes shown in the table.

In examples 1-18, silk fabric art. 82108 from a mixture of polyester and cotton fiber, in example 19 - non-woven adhesive fabric art. 9355103 based on the mixture

nylon and viscose, in example 20 - cotton knitwear (art. 01120806185).

As follows from the table, the method according to the invention allows, while maintaining the sharpness of the print, to increase the print run from 32 to 120-140. and consequently, significantly increase the productivity of the process. Moreover, the abrasion resistance of the material increases in the dry state from 860 cycles to 2400-2680 cycles, and in the wet

state from 70 cycles to 135-170 cycles. In some cases, its rigidity is also reduced from 2 to 1.5 sn. Consequently, the strength of fixing the pile in the dry state is increased by 3 times, and in the wet state

2 times.

(56) Copyright certificate of the USSR

Nfc 1281612.cl. D 06 P 1/58. published. 1987.

Lobova L.V. Development of physical and technical foundations for the production of non-woven electroflocked materials with the application of pile patterns. Candidate dissertation L .: LITLP them. S.M. Kirova, 1983, p. 87, 178.

Example

Physico-mechanical properties of flocked material

Abrasion resistance, cycles

Rigidity, cN

Dry condition

Wet condition

1320

Claims (1)

SUMMARY OF THE INVENTION A method for producing a FRAGED ELECTROFLOKED MATERIAL by applying an adhesive composition containing a latex based on butyl acrylate copolymer onto a textile substrate through a mesh template. methyl methacrylate and methacrylic acid with a mass ratio of monomer units, respectively, 62: 35: 3. latex based on a copolymer of butyl acrylate and methacrylic acid with a mass ratio of monomer units of 1: 1, a DB antifoam based on a mixture of monoalkyl ethers of polyethylene and polypropylene glycols with polymethylsiloxene, an epoxy resin based on the product of the interaction of epichlorohydrin with ammonia and diethylene glycol , by electroflocking and heat treatment, first at 90-100 ° C for 8-10 minutes and then at 140-150 ° C for 4-6 minutes. characterized in that an adhesive composition is used, which additionally contains a mixture of polyethylene glycol ethers of primary fatty alcohols of the Csu-Cn fraction with an average degree of hydroxyethylation of 3 and tris (2-hyd 77 1 5 m 10 fifteen 5 roxyethyl) ammonium sulfate in the following ratio, wt.h. Latex based on a copolymer of butyl acrylate, methyl methacrylate and methacrylic acid with a mass ratio of monomer units, respectively, of 62 35: 3 based on dry matter33 Latex based on a copolymer of butyl acrylate and methacrylrg 1 acid with a mass ratio of monomer units 1: 1 based on dry matter 1.4-1.8 DB antifoam 0.6 - 0.8 Epoxy resin based on the product of the interaction of epichlorohydrin with diethylene glycol 5.5 - 7.5 Mixture polyethylene glycol esters of fatty alcohols of the Lio-Cia fraction with an average degree of hydroxyethylation 3 0.3 - 0.5 Tris (2-hydroxyethyl) ammonium sulfate 0.3 - 0.5 Aqueous ammonia solution Up to pH 8 - 10