CN102978975A

CN102978975A - Printing paste preparation and printing process thereof

Info

Publication number: CN102978975A
Application number: CN2012105220691A
Authority: CN
Inventors: 叶其标; 许涟
Original assignee: SHAOXING CITY TIANJI PRINTING MATERIAL FACTORY
Current assignee: SHAOXING CITY TIANJI PRINTING MATERIAL FACTORY
Priority date: 2012-12-07
Filing date: 2012-12-07
Publication date: 2013-03-20
Anticipated expiration: 2032-12-07
Also published as: CN102978975B

Abstract

The invention discloses a printing paste preparation and printing process thereof and belongs to the technical field of textile printing or printing. The method for preparing the printing paste comprises the following steps: performing finish machining on each raw material, and mixing with printing paste, wherein the pigment accounts for 1-10 mass percent, and the printing paste accounts for 90-99 mass percent. The printing paste prepared by the method is dyed, dried and set. By the adoption of the technical scheme, the problems that the design and color are not bright and the pattern definition is low during screen printing are solved, the defects of low yield and limited breadth during digital printing are overcome, the printing breadth is improved, the printing speed is high, and the speed is generally 3,000m/h; and moreover, the adopted pigment and base material are pollution-free green dyes, and the dye is environment-friendly, has the effects of energy conservation and emission reduction and can be widely applied to the textile printing or printing process.

Description

Print paste preparation and printing technology thereof

Technical field

The present invention relates to a kind of print paste preparation and printing technology thereof, belong to dyeing or the printing technique field of textiles.

Background technology

In the prior art, conventional stamp is mainly by screen printing and digit printing, screen printing mainly comprises ROTARY SCREAM PRINTING and PLATE SCREAM PRINTING, the speed of ROTARY SCREAM PRINTING and PLATE SCREAM PRINTING, but pattern brightness is lower, and flower type resolution ratio is relatively poor, and the fabric of printing hardens, feel is relatively poor, and the dye environment that adopts pollutes larger; Although digit printing has solved the problem of colored type resolution ratio and definition, stamp speed is slower, generally only has 10m ²/ h, and, being subjected to the restriction of digital decorating machine, the stamp fabric width is limited, and majority can only be printed at fabrics such as polyester-cotton blend simultaneously, and textile class then can't realize stamp.

Have based on this, make the present invention.

Summary of the invention

The preparation method who the purpose of this invention is to provide a kind of pollution-free, low energy consumption, print paste that production efficiency is high, and the printing technology that adopts this print paste.

For realizing the object of the invention, the technical scheme of taking is as follows:

The preparation method of print paste: each raw material is carried out fine finishining, then be mixed with printing paste, wherein the mass percent of pigment is 1-10%, and the mass percent of printing paste is 90-99%.

Further arranging of technical solution of the present invention is as follows:

Described raw material mainly is red (Shanghai labor peace coating Co., Ltd, it is model: No. 11), yellow that (Shanghai labor is pacified coating Co., Ltd, it is model: No. 21), blue that (Shanghai labor is pacified coating Co., Ltd, model: No. 31) and black (Shanghai labor peace coating Co., Ltd, model: No. 53) pigment, printing paste is Shaoxin City space-based printing material factory, model: 118A.

Described fine finishining refers to pigment is ground, until pigment fineness≤300 orders.

Described printing paste is mainly acrylic emulsion, auxiliary agent and thickener, with three's mix and blend, and speed of agitator 2000-3000r/min, processing time 〉=30 minute, can gets final product.

The mass percent of described acrylic emulsion is 10-50%, and auxiliary agent is pure water, and mass percent is 1-10%, and surplus is thickener.

Described thickener is sodium alginate, acrylic acid, CMC(sodium carboxymethylcellulose) or starch.

Adopt the printing technology flow process of the print paste of technique scheme preparation to be: print paste preparation → stamp → oven dry, wherein, stamp comprises: slice → make a plate → draw a design.

Described plate-making is at silk screen or nickel screen coating aqueous sensitizing glue, then carries out drying under 10-80 ℃, then retouches the sample film-making.

Described oven dry adopts nature to dry or the steaming box oven dry, and wherein, the temperature of steaming box is 50-150 ℃.

Need finalize the design after the described oven dry, setting temperature is 60-150 ℃, and shaping time is 1-10 minute.

Adopt the beneficial effect of technical solution of the present invention as follows:

1. energy-saving and emission-reduction, used printing paste environmental protection, the stamp material that is mixed is difficult for coupling, can deposit the long period;

2. the dry grinding COLOR FASTNESS of the fabric of stamp acquisition can reach 4 grades, and the wet-milling COLOR FASTNESS can reach 3 grades;

3. stamp is bright in luster, and the clear patterns degree is high, and cloth is soft, applicable to various fabrics such as polyester-cotton blend, people cottons;

4. fabric width is not limit, and stamp speed is fast.

Adopt technical solution of the present invention both to overcome the not bright-coloured and not high problem of figure clarity of pattern in the screen printing, overcome again simultaneously yield poorly in the digit printing, defective that fabric width is limited, the stamp fabric width is improved, the stamp speed, generally can reach 3000m/h, the pigment and the base-material that adopt are free of contamination green colouring material, environment are not polluted energy-saving and emission-reduction.

Wherein red, yellow, blue, the mineral black after the fine finishining is called magenta, product are yellow, reddish blue, product black.

The specific embodiment

Embodiment 1

The technological process of dyeing in the technical solution of the present invention is: print paste preparation → stamp → oven dry.

(1) preparation of print paste: raw material is selected the 5%(mass percent) No. 11 magentas and 95%(mass percent) the 118A printing paste, wherein, pinkish red fineness after the grinding fine finishining is 250 orders, the composition of printing paste is the 15%(mass percent) acrylic emulsion, 5%(mass percent) water and 80%(mass percent) sodium alginate, three's mix and blend, speed of agitator is 2500r/min, and the processing time is 30 minutes, gets final product to get print paste.

(2) stamp: evenly smear aqueous sensitizing glue for first nickel screen, 40 ℃ lower dry, then retouches the sample film-making, slice; Print paste feeding silk screen or nickel screen with step (1) start rotary screen printing machines, and conduction band drives fabric or fabric motion, and when nickel screen rotated synchronously with conduction band, print paste overflowed by the aperture on the nickel screen, then was imprinted on fabric or the fabric.

(3) oven dry: fabric or fabric behind step (2) stamp are dried at steaming box, and bake out temperature is 100 ℃, and drying time is 1.5 minutes.

Fabric after the oven dry or fabric get final product 100 ℃ of lower typings 2 minutes.

Print paste in the technical solution of the present invention and raw material are free of contamination green material, this is for printing and dyeing area of concentrations such as south China, East China, the water pollution rate can reduce more than 80%, the cost of corresponding water, electricity, coal is more than 50%, and its cost only needs 10-20 unit, 2% of Imported Dyestuffs price, 10% of domestic dyestuff price; Simultaneously, adopt technical solution of the present invention, the stamp speed generally can reach 3000m/h, and its output is digit printing and screen printing 300-500 times, and the fabric dry grinding COLOR FASTNESS of acquisition can reach 4 grades, and the wet-milling COLOR FASTNESS can reach 3 grades; Stamp is bright in luster, and the clear patterns degree is high, and cloth is soft, applicable to various fabrics such as polyester-cotton blend, people cottons.

Embodiment 2

Present embodiment is identical with embodiment 1, difference is: 118A printing paste No. 31 reddish blue and 98%(mass percents raw material selection 2%(mass percent)), wherein, through grinding accurately machined reddish blue fineness 250 orders, the composition of printing paste is the 18%(mass percent) acrylic emulsion 3%(mass percent) water and 79%(mass percent) sodium alginate, speed of agitator is 2000r/min, and the processing time is 20 minutes.

Embodiment 3

Present embodiment is identical with embodiment 1, difference is: 118A the printing paste yellow and 97%(mass percent of No. 21 product raw material selection 3%(mass percent)), wherein, through grinding yellow fineness 300 orders of accurately machined product, the composition of printing paste is the 25%(mass percent) acrylic emulsion, 5%(mass percent) water and 70%(mass percent) sodium alginate, speed of agitator is 2500r/min, and the processing time is 30 minutes.

Embodiment 4

Present embodiment is identical with embodiment 1, difference is: raw material select 5% No. 11 product black with 95% 118A printing paste, wherein, through grinding black fineness 200 orders of accurately machined product, the composition of printing paste is the water of 24% acrylic emulsion 4% and 72% sodium alginate, speed of agitator is 2500r/min, and the processing time is 30 minutes.

Claims

1. the preparation method of print paste, it is characterized in that: each raw material is carried out fine finishining, then be mixed with printing paste, wherein, the mass percent of raw material is 1-10%, and the mass percent of printing paste is 90-99%.

2. the preparation method of print paste according to claim 1 is characterized in that: described raw material is red, yellow, indigo plant and mineral black.

3. the preparation method of print paste according to claim 1, it is characterized in that: described fine finishining refers to pigment is ground, fineness≤300 orders.

4. the preparation method of print paste according to claim 1, it is characterized in that: described printing paste is acrylic emulsion, auxiliary agent and thickener, with three's mix and blend, speed of agitator 1000-5000r/min, processing time 〉=10 minute, can gets final product.

5. the preparation method of print paste according to claim 4, it is characterized in that: the percentage that described acrylic emulsion accounts for the printing paste gross mass is 10-50%, and auxiliary agent is water, and its percentage that accounts for the printing paste gross mass is 1-10%, and surplus is thickener.

6. the preparation method of print paste according to claim 5, it is characterized in that: described thickener is sodium alginate, acrylic acid, CMC or starch.

7. adopt the printing technology of each described print paste of claim 1-6, it is characterized in that this technological process is: print paste preparation → stamp → oven dry, wherein stamp comprises: slice → make a plate → draw a design.

8. printing technology according to claim 7 is characterized in that, described plate-making: behind coating aqueous sensitizing glue on silk screen or the nickel screen, carry out drying under 10-80 ℃, then retouch the sample film-making.

9. printing technology according to claim 7 is characterized in that: described drying mode is that nature dries or adopts the steaming box oven dry, and wherein, the temperature of steaming box is 50-150 ℃.

10. printing technology according to claim 9, it is characterized in that: also need finalize the design after the described oven dry, setting temperature is 60-150 ℃, and shaping time is 1-10 minute.