DE1933970A1 - Prodn of multi-coloured and shadow effects - on polyamides - Google Patents

Abstract

Development of the process of NL 6908266 for producing multi-coloured and shadow effects on polyamides wherein pre-treatment of the polyamide with nat./snth. tannins is effected at a pH of 2-9 and at temps. of 60-120 degrees C in a long aqs. bath, this reserved material mixed with unprepd.material and suitably dyed in an aqs. bath at pH 3-7.

Description

1933S70

FARBWERKE HOECHST AG formerly Wgister Lucius & Brüning

File number: p _w 5636

Frankfurt (M) -Hochst, July 2, 1969 Dr Cz/sr

Process for creating shadows and multi-color effects on polyamide materials

Addendum to patent (patent application P 17 69 5l8.O)

Subject of the patent ». (Patent application P 17 69 5l8.O)

is a method for creating shadows and multi-color effects on polyamide materials treated with natural or synthetic tanning agents by treating them with a printing paste, which contains natural or synthetic tanning agents, at pH values between 2 and 9 printed materials treated after fixation with an aqueous liquor, the acid dyes or any two or three mixtures of acid dyes, basic dyes and disperse dyes contains.

In a further development of this inventive concept it has now been found that in the context of the production of multicolor effects and shadow colorations surprisingly produce the same result can be achieved if, instead of printing, the pretreatment of the polyamide materials with the natural or synthetic tanning agents from a long, aqueous liquor at pH values between 2 and 9 and temperatures of 60 to 120 C, preferably boiling temperature for 10 to 60 minutes, preferably 30 minutes, then the reserved material mixed and processed with non-prepared polyamide material and this mixture then in an aqueous

·) Made 009883/2309 / 2

At pH values of 3 to 7, the liquor colors the acid dyes or any two or three mixtures of acid dyes, contains basic dyes and emulsion dyes.

The advantage achieved by the method according to the invention Such treatment with the natural or synthetic tanning agents consists in the fact that here the according to the working method of the main patent required, costly pressure and steaming process can be omitted.

As part of the process of the invention can si h by ψ the different drawing ability of produce treated with tanning agents and untreated Polyaniidmaterialien during the subsequent dyeing, depending on the category of reaching dyes used special dyeing effects:

This is how acid dyes color the untreated poxyamide material normal, while no dye is absorbed on the treated polyamide material or produces significantly lighter shades will. In the case of basic dyes, the reserve affects

tion by the tannins, while dyeing the untreated None of the materials, but the treated materials produce staining. When dyeing, occurs with disperse dyes practically no reservation at all due to the tannins applied to the goods and the treated ones behave and the untreated polyamide materials are the same and are stained normally.

Taking into account the deviating drawability of the named types of dyes on the treated or Untreated materials, when dyeing polyamide materials according to the invention, are thus able to use appropriate Selection of compounds from these three classes of dyes to achieve shadow colorations or multi-color effects by one with natural or synthetic. Treated tannins

·) Vice versa 0098 83/2209 / 3

BATH ORIGINAL

Polyaniidmatcrial mixes with untreated. This fact must ills to be viewed extraordinarily surprising, especially since it is has not previously been possible when dyeing with individual dyes or with dye mixtures from the same bath at the same time multicolor effects on undifferentiated polyamide materials to achieve.

For the method according to the present invention, synthetic textile materials are particularly those made of high molecular weight linear polyamides into consideration, such as. B. Polymerization products based on C-caprolactam (nylon 6), Dodecancaprolactam (nylon 12) or U-amino undecanoic acid (nylon II), or polycondensation products of hexamethylenediamine and adipic acid (nylon 6,6) or from hexamethylenediamine and sebacic acid (nylon 610).

According to the invention, compounds of natural origin, especially tannins, as well as synthetically produced products of importance, e.g. B. those based on fatty alcohol sulfate onates, paraffin sulfonic acid chlorides, polymethylol bases, Diisocyanates, polysulfonic acid imides, condensates of aromatic sulfonic acids and phenolic structure, especially condensation product · Of formaldehyde with phenolic and naphthalenesulfonic acids, condensation products of nitrogenous Compounds, preferably urea, with formaldehyde, with others, Substances that react with formaldehyde, such as phenols, hydrogen sulfite and the like can be condensed in, furthermore formaldehyde condensation products solubilized by sulfonation aromatic base, such as phenol, krcsol, resorcinol, naphthols and naphthalene. The tanning agents mentioned are about substances that do not stain the polyamide materials by themselves.

009883/2209

BAD ORIGINAL _{/ k}

The coloring of the by a pretreatment with the natural or synthetic substances with a reserve of polyamide materials with the dyes or dye mixtures mentioned according to the process from neutral to weakly acidic, preferably ■ acetic acid bath, preferably in a long flotation ratio, expediently carried out at temperatures between 70 and 8 p G.

The dyeings are finished in the usual way.

*) made

009883/2209 / 5

BATH ORIGINAL example 1

g nylon 6,6 flakes are made with a liquor

40g / l of a phenol-cresol-aldehyde resin, dispersed in ß-naphthalenesulfonic acid, which is coiidensated with formaldehyde and urea, and 1200 ecm of water
Treated minutes at boiling temperature.

a) 5 g of this flake treated in this way can be dyed normally with 5 g Nylon 6,6 flake mixed and processed into a yarn and the yarn produced is then 60 minutes at 70 to 85 C with 30Ό ecm of an aqueous solution of

200 mg acid blue k0 (Color Index No. 62 125) and 100 mg glacial acetic acid
colored. A white reserved blue coloration is obtained.

b) 5 g of this flake treated in this way are mixed with 5 g of normally dyeable nylon 6,6 flake and processed into a yarn and the yarn produced is then 60 minutes at 70 to 85 C with 300 ecm of an aqueous solution of 200 mg acid red 42 ( Color Index No. 17 070), 150 mg basic blue kk (Color Index, Supplement 1963>

Page 173) and

50 mg of a leveling agent from 80 % of the product of action of 25 mol of ethylene oxide on 1 mol of stearyl alcohol and 20 ° 6 of a polyethylene glycol with a molar weight of approx. 600O
colored. Lively blue reserves are obtained on a red background.

c) 5 g of this flake thus treated are turned on with normal 5 S, dyeable nylon 6,6 flake mixed and processed into a yarn and the yarn is then made for 60 minutes at 70 ° to 85 ⁰ C with 300 cc of an aqueous solution of

150 mg acid yellow 25 (Color Index No. 18 835), 70 mg dispersion blue 7 (Color Index No. 62 500) j

"Ν -,: -.-; Q 0 9 8 8 3/22 _09/6

T93397Q

- 6 - ■■■:. ■ .. - ■ '■

100 mg of glacial acetic acid and

200 mg of anitnoniuinacetnt

colored. Luminous ones are obtained on a lively green background Blue reserves.

d) 5 g of this flake treated in this way are mixed with 5 g of normal dyeable nylon 6,6 flake and processed into a yarn and the yarn produced is then treated for 60 minutes at 70 to 85 ° C. with 300 ecm of an aqueous solution of 150 mg of dispersion yellow 3 ( Color Index No. 11 855), W 100 mg basic blue kk (Color Index Supplement I963,

Page 173)
100 mg of glacial acetic acid and

50 rag of a leveling agent according to example 1 b) colored. Yellow reserves are obtained on a lively green ground.

Example 2

100 g nylon 6,6 flakes are made with a liquor 'OK g / l tannin,

5 ccm / l formic acid and · ...- "*

1200 ecm of water
Treated at boiling temperature for 30 minutes.

The material treated in this way is now. as under 1 a) to Id) described, colored. The color effects achieved are the same as specified under 1 a) to 1 d).

Example 3 ..... ~ - "

100 g nylon 6 flakes are made with a liquor

k0 g / l of a reaction product of a naphthalenesulfonic acid, urea and formaldehyde with a phenol-formaldehyde-sulfite resin, and '1200 ecm of water "treated for 30 minutes at boiling temperature.

The material treated in this way is nuiywx.e * under 1 a) to 1 d)

.''- ob-9883 / 220'0 / 7

described, colored. The color effects achieved are the same. as described under 1 a) to 1 d).

example H

100 g nylon 6 flakes are made with a liquor

* iO g / l of a condensation product of phenol, a Naphtholsulfoiisäurc and formaldehyde, and

1200 ecm of water
Treated at boiling temperature for 30 minutes.

The material treated in this way is now, as under 1 a) to 1 d) described, colored. The color effects achieved are the same as described under 1 a) to Id).

Example 5

100 g nylon 6 flakes are made with a liquor

10 g / l of a tanning agent such as that described in Example 1 Condensation product, and

1200 ecm of water
Treated at boiling temperature for 30 minutes.

a) 5 g of this flake thus treated are mixed with 5 g of normal dyeable nylon 6 flake mixed and processed into a yarn and the yarn is then made for 60 minutes at 70 ° ecm to 85 ⁰ C with 300 of an aqueous solution of

200 mg acid red * l2 (Color Index No. 17 070) and 100 mg glacial acetic acid
colored. Light pink reserves are obtained on a dark red background.

b) 5 S of these flakes treated in this way can be dyed normally with 5 g Nylon 6 flake mixed and processed into a yarn and the yarn produced is then 60 minutes at 70 to 85 C with 3OO ecm of an aqueous solution of

200 mg acid blue 40 (Color Index No. 62 125) and 100 mg glacial acetic acid
colored. Light blue reserves are obtained on a blue background.

009883/2 20 9 '] / ⁸

- ff

Pcj game 6

1OQ Jg nylon 6,6 flake are made with a liquor 10 g / l tannin,

5 eem / l glacial acetic acid and

1 £ 5QQ ecm of water

Treated for 30 minutes at lyochteinperiatur and as below 5 processed further. One achieves (The same effects as in example 5 described.

According to Example 1 to 6 can be used to generate Mehrfarben.üi'f'ektßn ScliattenjFärbungen and also in place of polyamide flake W amidgarn be used, which is then processed with non deltem, stainable normal Gar ".

009883/2209

Claims (1)

Claim; Further development of the method for creating multicolor effects and shading on polyamide materials treated with natural or synthetic tanning agents according to patent application P 17 69 5l8.O, by using the materials printed with a printing paste of natural or synthetic tanning agents at pH values of 3 to 7 according to the Fixation treated with an aqueous liquor containing acid dyes or any two or three mixtures of acid dyes, basic dyes and disperse dyes, characterized in that, instead of printing, the polyamide materials are pretreated with natural or synthetic tanning agents from a long, aqueous liquor at '. pH values between 2 and 9 and temperatures from 6θ to 120 ° C., then the reserved material is mixed with non-preprepared polyamide material and processed and this mixture is then colored in an aqueous liquor at pH values of 3 to 7, the acid dyes or any Contains two or three mixtures of acid dyes, basic dyes and disperse dyes. *) made ' - **. *' Ϊ-Λ \ 009 883 / 220Θ