CN103981739A

CN103981739A - Method for dark black dyeing for aqueous suede

Info

Publication number: CN103981739A
Application number: CN201410173964.6A
Authority: CN
Inventors: 周光勇; 李世琪; 唐川; 陈祖芬
Original assignee: GUANGDONG DEMEI FINE CHEMICAL CO Ltd
Current assignee: GUANGDONG DEMEI FINE CHEMICAL CO Ltd
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2014-08-13

Abstract

The invention discloses a method for dark black dyeing for aqueous suede. The method comprises the following steps: firstly, using acid dyes, or acid dyes and disperse dyes combined in a certain proportion, for dyeing the suede; washing and drying the suede; then, using deepening agents DM-3926A for treatment; after drying, using deepening agents DM-3926B for treatment; and after baking, using wet rubbing fastness increasing agents DM-2588X for treatment. After being dyed and finished, the aqueous suede is significantly deepened to achieve the dyeing effect of 'Arab black', and is excellent in fastness; the dry rubbing fastness can reach the level 4, and the wet rubbing fastness can reach the level 3-4, so that the disadvantages that resin color is added when the conventional aqueous suede is foamed, and because of foaming, the color of the leather surface cannot be kept uniform, fluffs are easily covered when color is adjusted, the rubbing fastness is poor and the like, are effectively overcome, the performance of products is further improved, and a new method is provided fordark color dyeing for the products.

Description

The aterrimus colouring method of water-based sheep Ba Ge

Technical field

The present invention relates to the Dyeing Technology field of water-based sheep Ba Ge, specifically, relate to a kind of application ACID DYES or ACID DYES and DISPERSE DYES and spell by a certain percentage to use water-based sheep Ba Ge is dyeed, increases depths reason, make water-based sheep Ba Ge dye black colouring method.

Background technology

Utilize sheep bar foam process to manufacture one deck fine hair at leather surface, its outward appearance is similar with animal down.At present the common processes of domestic tannery is first to prepare sheep bar Foamex: resin (water-base resin or oleoresin), sheep bar foam powder (thick/in thick/thin), levelling wetting agent, mill base, thickener are stirred according to a certain percentage, then applying sheep bar Foamex directly covers with paint, lacquer, colour wash, etc. at bass surface, low temperature drying.According to the blowing temperature of sheep bar powder, put into baking oven again and foam, after the foaming of sheep bar, leather surface has one deck fine hair out, is finished product leather sample.Yet, the main Shortcomings of traditional handicraft:

1) during due to foaming, be added with color, because there being the relation of foaming, leather surface color is evenly difficult, must repair look, and sheep bar easily hides fine hair when repairing look, and after tomentum hides, leather surface is smooth, loses sheep Ba Fang bark effect.

2) black of the sheep bar foaming leather that traditional handicraft is made is dark not, must process with carbon black, and oiliness carbon black contains a large amount of organic solvents, large to human and environment harm.

3) sheep bar revolutionary cadre wet rubbing fastness is poor.

Above not enough owing to existing, make the current sheep Ba Ge producing can not meet client's demand, a little less than causing the market competitiveness.

Summary of the invention

Object of the present invention aims to provide the aterrimus colouring method of a kind of water-based sheep Ba Ge, and to solve, the black of sheep Ba Ge is shallow, sheep Ba Ge is in the problem of repairing Se Shiyi its fine hair being hidden, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

The aterrimus colouring method of water-based sheep Ba Ge, is characterized in that: comprise the following steps:

A, first apply ACID DYES or ACID DYES and DISPERSE DYES and according to a certain percentage water-based sheep Ba Ge is dyeed, after oven dry, with deep-dyeing agent, arrange, improve the degree of depth of black;

B, then apply deep-dyeing agent DM-3926A and arrange;

C, apply feel deep-dyeing agent DM-3926B again and arrange, bake;

D, finally apply wet friction fastness improving agent DM-2588X and arrange.

As a kind of scheme more specifically, in described step a, dyeing is: acid black M-BX consumption is 3 ~ 10%(owf), Disperse Black EX-SF consumption is 0 ~ 5%(owf), pH is adjusted to 3.0 ~ 6.0, bath raio 1:6 ~ 20,80 ~ 100 ℃ of insulation 30 ~ 60min, washing, dries.

In described step b, increasing dark finishing technique is: deep-dyeing agent DM-3926A consumption is 10 ~ 30g/l, and two soak two rolls, and dries, and 120 ~ 170 ℃ bake.

Described step c feel deep-dyeing agent finishing technique is: deep-dyeing agent DM-3926B consumption is 5 ~ 50g/l, and two soak two rolls, and dries, and 120 ~ 170 ℃ bake.

In described steps d, crock fastness lifting finishing technique is: crock fastness elevator DM-2588X consumption is 10 ~ 60g/L, and two soak two rolls, and dries, and 120 ~ 170 ℃ bake.

It is described that to bake the time be 1 min ~ 5min.

As better a kind of scheme, described steps d adopts crock fastness elevator to process: the state of working solution is adjusted to micro-turbid state by clear and uses, to dry, that fastness to wet rubbing promotes effect is better.The main chemicals using is appropriate soda ash or glauber salt, or the temperature of raising working solution all can be adjusted to working solution micro-turbid state.

The present invention has the following advantages:

1. water-based sheep Ba Ge of the present invention dyes in aterrimus method, first applying ACID DYES or acidity/DISPERSE DYES spelling uses sheep Ba Ge is dyeed, by the combination of ionic bond, make sheep Ba Ge can obtain darker black, then applying deep-dyeing agent DM-3926A arranges, bake, make it crosslinked with sheep Ba Ge, recycling feel deep-dyeing agent DM-3926A arranges, bake, can reach good hand feeling, the dark gorgeous effect of color, finally applying wet friction fastness improving agent DM-2588X arranges, condensation mutually in drying course, on the surface of fiber, form the film of layer of transparent, be conducive to the lifting of crock fastness, thereby improve performance and the added value of product.

2. water-based sheep Ba Ge of the present invention dyes in aterrimus technique, first applying ACID DYES or acidity/DISPERSE DYES spelling uses sheep Ba Ge is dyeed, by the combination of ionic bond, make sheep Ba Ge can obtain darker black, then apply deep-dyeing agent and increase dark arrangement, by changing the optical property of fiber surface, thereby obtain significant apparent bathochromic effect.This class deep-dyeing agent does not reach requirement for the dye level of the rear finished product of dyeing, or the larger dark product of dye dosage, has good practical value, accomplishes to save dye dosage and can reduce again the demand that discharge can also meet client simultaneously.

The specific embodiment

Below in conjunction with embodiment, the invention will be further described.

The aterrimus colouring method of water-based sheep Ba Ge of the present invention, comprises the following steps:

A, first apply ACID DYES or ACID DYES and DISPERSE DYES and according to a certain percentage water-based sheep Ba Ge is dyeed, after oven dry, with deep-dyeing agent, arrange;

B, then apply deep-dyeing agent DM-3926A and arrange;

C, apply feel deep-dyeing agent DM-3926B again and arrange, bake;

D, finally apply wet friction fastness improving agent DM-2588X and arrange.

In described step a, pretreating process is: the black M-BX consumption of acid complexing is 3 ~ 10%(owf), Disperse Black EX-SF consumption is 0 ~ 5%(owf), pH is adjusted to 3.0 ~ 6.0, bath raio 1:6 ~ 20, and 80 ~ 100 ℃ of insulation 30 ~ 60min, washing, dries.Owf (On weight the fabric) is the concentration unit in dyeing and printing process, to take the relative fabric percent concentration that fabric weight is benchmark, for example dye dosage is 4% (owf), that is to say that dying the fabric of 100 kilograms needs the dyestuff of 4 kilograms.

It is described that to bake the time be 1min ~ 5min.

In said method, the preferred version list of each formula components is expressed as follows:

?	M-BX（owf	EX-SF（owf	DM-3926A（g/l	DM-3926B（g/l	DM-2588X（g/l
						Preferably one	3	1	15	10	20
Preferably two	5	2	20	20	30
						Preferably three	8	2	25	30	30
Preferably four	10	3	30	40	50

The present invention also provides the aterrimus colouring method of another kind of water-based sheep Ba Ge, its method is also to be completed by four steps, wherein first three steps is identical with step a, b, the c of above-mentioned method, the 4th step adopts infusion process to process, and in rotary drum, color fixing process is: crock fastness elevator DM-2588X consumption is 10%(owf), under ℃ condition of room temperature ~ 50, move 20min, dehydration, 100 ℃ of oven dry, 150 ℃ bake.

When client to the color of sheep Ba Ge require need not be profound effect time, can by the first step of the aterrimus colouring method of above water-based sheep Ba Ge, (be that step a) selects separately ACID DYES to dye, as acid black M-BX.All the other steps are not done to change, and still adopt step b, c, d in said method.

In said method, the deep-dyeing agent DM-3926A using, feel deep-dyeing agent DM-3926B and by Guangdong Demei Fine Chemical Co., Ltd., provide containing the crock fastness elevator DM-2588X of special macromolecule cation compound.

Two specific embodiment take below as example, describe the dyeing course of the sheep Ba Ge of the inventive method in detail:

Embodiment mono-

Preparatory process:

Fabric types: water-based sheep Ba Ge 5Kg;

Equipment: GHE type interlayer heating stainless steel temperature control experimental drum (Wuxi Hong Yuan manufacture);

Rotating speed: 15 revs/min;

Equipment: MH591-180 type skew rolling mill (vertical letter);

The speed of a motor vehicle: 18 ms/min;

Pressure: 0.5kg.

Test technology:

The first step: dyeing recipe and technique;

Acid black M-BX:8%(owf)

Acetic acid: 0.3g/L

1:10,100 ℃ of insulation 60min, washing, dry → depths to be increased reason.

Second step: increase dark formula and technique;

Deep-dyeing agent DM-3926A:15g/L

Two soak two rolls, and bakes (150 ℃ * 3min)

The 3rd step: feel increases dark finishing formulation and technique:

Deep-dyeing agent DM-3926B:20g/L

Two soak two rolls, and bakes (170 ℃ * 3min)

The 4th step: fixation formula and technique:

Wet friction fastness improving agent DM-2588X:30g/L;

Two soak two rolls, and bakes (150 ℃ * 2min).

Coloration result: K/S is 18.6,4 grades of dry fastnesses, fastness to wet rubbing 3-4 level.

Embodiment bis-

Preparatory process: with embodiment mono-

The first step: dyeing recipe and technique;

Acid black M-BX:8%(owf)

Disperse Black EX-SF: 2%(owf)

Acetic acid: 0.3g/L

Second step: increase dark formula and technique;

Deep-dyeing agent DM-3926A:20g/L

Two soak two rolls, and dries, and bakes (150 ℃ * 3min)

The 3rd step: feel increases dark finishing formulation and technique:

Deep-dyeing agent DM-3926B:20g/L

Two soak two rolls, and dries, and bakes (170 ℃ * 3min)

The 4th step: fixation formula and technique:

Wet friction fastness improving agent DM-2588X:30g/L;

Two soak two rolls, and dries, and bakes (150 ℃ * 2min).

Coloration result: K/S is 22.4,4 grades of dry fastnesses, fastness to wet rubbing 3-4 level.

Claims

1. the aterrimus colouring method of water-based sheep Ba Ge, is characterized in that comprising the following steps:

A, adopt ACID DYES or on ACID DYES basis, add DISPERSE DYES water-based sheep Ba Ge is dyeed, after oven dry, with deep-dyeing agent, arranging, to improve the degree of depth of black;

B, adopt special acrylic polymer deep-dyeing agent DM-3926A to arrange;

C, the poly-emulsion feel deep-dyeing agent DM-3926B of employing organosilicon arrange, and bake;

D, employing wet friction fastness improving agent DM-2588X arrange.

2. the aterrimus colouring method of water-based sheep Ba Ge according to claim 1, it is characterized in that: in step a, ACID DYES consumption is 3 ~ 10%(owf), DISPERSE DYES consumption is 0 ~ 5%(owf), pH is adjusted to 3.0 ~ 6.0, and bath raio 1:6 ~ 20 are incubated 30 ~ 60min at 80 ~ 100 ℃, then washing, dries.

3. the aterrimus colouring method of water-based sheep Ba Ge according to claim 1, is characterized in that: in step b, deep-dyeing agent DM-3926A consumption is 10 ~ 30g/l, adopts two to soak two rolling methods, and bakes at 120 ~ 170 ℃.

4. the aterrimus colouring method of water-based sheep Ba Ge according to claim 1, is characterized in that: in step c, feel deep-dyeing agent DM-3926B consumption is 5 ~ 50g/l, and two soak two rolls post-drying, at 120 ~ 170 ℃, bakes.

5. the aterrimus colouring method of water-based sheep Ba Ge according to claim 1, is characterized in that: in steps d, crock fastness elevator DM-2588X consumption is 10 ~ 60g/L, and two soak two rolls post-drying, then at 120 ~ 170 ℃, bakes.

6. according to the aterrimus colouring method of the water-based sheep Ba Ge described in claim 2,3 or 4 or 5, it is characterized in that: described in to bake the time be 1 ~ 5min.

7. according to the aterrimus colouring method of the water-based sheep Ba Ge described in right 1, it is characterized in that: in described steps d, the state of wet friction fastness improving agent DM-2588X working solution is adjusted to micro-turbid state by clear and uses.

8. according to the aterrimus colouring method of the water-based sheep Ba Ge described in right 7, it is characterized in that: the appropriate soda ash that uses or glauber salt the state of working solution is adjusted to micro-turbid state, or the temperature that improves working solution that working solution is adjusted to is micro-turbid.