PL99863B1 - METHOD OF STAINING POOR-LIKE PLASTICS - Google Patents

Description

The invention relates to a continuous barium process of poromeric leather-like materials of polyurethane and / or polyvinyl chloride have microporous outer layer and possibly with a layer of reinforcement fabric, and having a polyester backing, polyester-polyurethane or polyester-polyurethane chlorvinyl or polyester impregnated.

Poromeric leather-like materials multi- layered because of their composition and structure chemicals of the individual layers require specific staining conditions.

Methods of dyeing plastics known so far poromeric and polyurethane based foams tanu rely or on several dozen minutes treating the material in water or water-dissolving solvent bath at a temperature above 80T !, containing an anionic dye or dye mortar and then dyeing of the material through a bath that fixes and develops jaca, or in the case of continuous methods relies on padding with dye in a bath of temperature at least above 80 ° C for 3-5 minutes and then passing the material through the canal fixing nap.

The above-mentioned continuum has been used so far the dyeing method causes a sudden exhaustion dye washing in a soothing bath, what as a result it gives uneven color penetration nika and its distribution both on the surface of 30 and in the cross-section of the leather material similar. The color of the material is also of that time on the surface of streaks, stains and places undyed inner layers / Extra a drawback of the methods used so far is curling of the edges of the leather-like material due to the high temperature of the bath inspiring and strengthening. , According to the invention, the material is leather similar poromeric multilayers after spitting solvent, dry or containing liquid 150% of water is poured into a bath containing color a water-soluble agent, preferably a dye anionic, especially from the group of the acid dyes or metal complexes and possible addition addition of ethylene oxide condensation products with alcohols with alcohol and / or fatty acids and / or their salts, polycondensation products of ethylene oxide and / or the condensation products of ethylene oxide with the fe nols and / or phenols, ammonium substitution products preferably trietenolamine, time surfacing takes 1 to 6, preferably 1 to 2 minutes, at a temperature below 80 ° C, preferably 40-50 ° C.

Then the leather-like material is introduced for fixative bath with a pH value of 2.5-5 at a temperature close to the bath temperature delightful.

Dye according to the invention dye it is applied to the leather-like material without this tendency to react immediately with groups99,863 active materials, thanks to which the arrangement the dye is even over the entire surface the dyeing tapes subjected to surfacing materials,. . t ..! and In a low temperature soaking bath the dye worn shows no tendency to glass exhaustion from the bath, and therefore also penetrates uniformly into individual layers of plastic leatherette, regardless of its composition qualitative. However, the binding of the dye to the plastic The bend occurs violently upon entry putting into a fixative bath. In this way a uniform and reproducible color is obtained both surfaces of the outer layers (face and flesh) as well as the inner layers of the base given to dyeing leather-like material multi-layered.

The dyeing method according to the invention makes it possible also obtaining uniform colors on even with a strip of leather-like material of a slightly different structure and composition specific sections of the product.

Examples for implementing the method are given below according to the invention.

Example I. Tasme of imitation leather poromeric after rinsing from solvent and baby, move in for 1-2 minutes for surfacing bath at 40 ° C with 15 parts by weight per 1 liter of bath acid dye (C.I. Acid Red 99).

The tape is then placed in the water canyon fixative wash at a temperature of 60 ° C, to which glacial acetic acid was previously added for use It scales environments with a pH value of around 3. Color The red-colored ribbon gives way to spitting sewing, drying and further finishing.

Example II. Tape of leather-like materials poromeric material after rinsing from the solvent nika, clothes and drying, put into the canal pads at 45 ° C contain 1 liter of bath, 15 parts by weight of the dye acidic acid (C.I. Acid Braun 214). Time to enjoy time 1 — t2 minutes.

The tape is then placed in the water canyon in a fixative wash with a pH value of 3.5% of the temperature temperature 45 ° C to which acid had previously been added acetic glacial. Fusing time 1 ^ 2 minutes. Za¬ a brown colored tape with a shade of yellow this is rinsed, dried and further processed finishing.

Example III. Tape of leather-like materials after rinsing and clothes, he is moved to the softening bath containing 1 liter of bath parts by weight of an acid dye (C.I.

Acid Braun 213) and 0.75 parts by weight of ether polyglycol (Polikol 42) L Surfacing time 1–2 minutes at 50 ° C.

The tape is then passed through the bath fixative with a pH value of about 3.5, at temperature turn 50 ° C, within 1-2 minutes. Colored on horse a brown lor with a shade of red rattles it is dried and finished.

Example IV. Tape of leather-like materials after rinsing and garment, he moves in to softening bath containing 1 liter of bath 17.5 parts by weight of the metal complex dye (C.I. Acid Black 52), and 0.5 parts by weight of ether polyglyclic (Polikol 42) and 0.8 parts by weight of three ethenolamines. The surfacing time is 1-2 minutes at the temperature of at 45X !.

The tape is then introduced through the bath fixative with a pH value of approx. 3.5 at a temperature 60 ° C for 1-2 minutes. Colored in color the black ribbon of leather-like material is washed out, dries and subjected to finishing.

Colored according to the invention, the two Poromeric leather-like vegetables characterize with an even, reproducible color and discoloration with inner layers, and have good functional properties, especially for water, sweat, friction.

Claims (1)

1. Patent claim A method of dyeing post-polymeric leather materials, characterized in that the material, after rinsing with the solvent, is dried or not, for a period of 1-5 minutes, preferably 1-2 minutes, into a bath containing a dye soluble in water, preferably an anionic dye, especially a dye. acidic or metal complex and optional addition of condensation products of ethylene oxide with alcohols and / or fatty acids and / or their salts, polyphenolamic condensation products of ethylene oxide and / or condensation products of ethylene oxide with phenols and / or phenols ammonia substitution products, preferably trietenolamine, at a temperature below 80 ° C., preferably 40-50 ° C., and the material is then introduced into the fixative bath at a pH of 2.5-5 at a temperature close to that of the padding bath. LDA - Plant 2, residing 2159/78 - IW pc. Price PLN 45.