Acid digital printing pretreatment agent and preparation method thereof

A pre-treatment agent, digital printing technology, applied in the direction of dyeing, textile and papermaking, etc., can solve the problems of insufficient printing depth, clarity and fastness

Pending Publication Date: 2022-03-11
TAICANG BAONI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides an acidic digital printing pretreatment agent and a preparation method thereof. The acidic digital printi

Method used

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  • Acid digital printing pretreatment agent and preparation method thereof
  • Acid digital printing pretreatment agent and preparation method thereof
  • Acid digital printing pretreatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The formula of acidic digital printing pretreatment agent in the present embodiment is as follows:

[0052]

[0053] The present invention provides a kind of preparation method of above-mentioned acid digital printing pretreatment agent, it comprises:

[0054] 1) The preparation method of modified cellulose 1

[0055] 2.45 parts by weight of hydroxyethyl cellulose (DS.=1.0) and 2.45 parts by weight of carboxymethyl cellulose (DS.=1.1) were mixed and dispersed at a concentration of 50 parts by weight 70wt.% ethanol solution, adding 2.45 parts by weight of NaOH solution with a concentration of 0.07wt.%, alkalized at room temperature for 30min, and adding 0.1g part of epichlorohydrin dropwise, The temperature was raised to 50°C for etherification reaction for 3h. The reacted products were washed with absolute ethanol and filtered three times, and dried in an oven at 50° C. for 24 hours to obtain 5 parts by weight of modified cellulose 1 .

[0056] 2) The preparation ...

Embodiment 2

[0063] The formula of acidic digital printing pretreatment agent in the present embodiment is as follows:

[0064]

[0065] The present invention provides a kind of preparation method of above-mentioned acid digital pretreatment agent, it comprises:

[0066] 1) The preparation method of modified cellulose 2

[0067] 4.9 parts by weight of hydroxyethyl cellulose (DS.=1.5) and 4.9 parts by weight of carboxymethyl cellulose (DS.=1.8) were mixed and dispersed at a concentration of 100 parts by weight 70wt.% ethanol solution, adding 4.9 parts by weight of NaOH solution with a concentration of 0.07wt.%, alkalized at room temperature for 30min, and adding 0.2g parts by weight of epichlorohydrin dropwise, The temperature was raised to 50°C for etherification reaction for 3h. The reacted products were washed with absolute ethanol and filtered three times, and dried in an oven at 50° C. for 24 hours to obtain 10 parts by weight of modified cellulose 2 .

[0068] 2) The preparation...

Embodiment 3

[0075] The formula of acidic digital printing pretreatment agent in the present embodiment is as follows:

[0076]

[0077] The invention provides a kind of preparation method of above-mentioned acid digital pretreatment agent, it comprises:

[0078] 1) Preparation method of modified cellulose 3

[0079]3.43 parts by weight of hydroxyethyl cellulose (DS.=1.5) and 3.43 parts by weight of carboxymethyl cellulose (DS.=1.5) were mixed and dispersed at a concentration of 70 parts by weight 70wt.% ethanol solution, adding 3.43 parts by weight of NaOH solution with a concentration of 0.07wt.%, alkalized at room temperature for 30min, adding 0.14g parts of epichlorohydrin dropwise, The temperature was raised to 50°C for etherification reaction for 3h. The reacted products were washed with absolute ethanol and filtered three times, and dried in an oven at 50° C. for 24 hours to obtain 7 parts by weight of modified cellulose 3 .

[0080] 2) The preparation method of modified carbo...

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Abstract

The invention provides an acidic digital printing pretreatment agent and a preparation method thereof. The acidic digital printing pretreatment agent comprises the following components in parts by mass: 5-10 parts of modified cellulose; 5 to 10 parts of modified carboxymethyl guar gum; 10-20 parts of a coupling agent; 3-8 parts of a synergist; 52 to 77 parts of a filling agent; wherein the modified cellulose is obtained by carrying out cross-linking reaction on a cross-linking agent and cellulose; the modified carboxymethyl guar gum is obtained by modifying carboxymethyl guar gum by using a cationic etherifying agent and diepoxy terminated polyether. The acidic digital printing pretreatment agent disclosed by the invention has the advantages of excellent digital printing depth, definition, uniformity, hand feeling and fastness, low dosage and good stability.

Description

technical field [0001] The invention relates to the field of digital printing, in particular to an acidic digital printing pretreatment agent and a preparation method thereof. Background technique [0002] Digital printing technology is a new type of printing technology that has emerged in recent years. People can choose personalized patterns according to their personal preferences for personal customization. Compared with traditional printing methods, digital printing technology avoids the plate-making (network) process, has the advantages of convenient and fast production, saves production costs, high pattern fineness, multi-pattern small batch processing, etc., and is widely used in the production process of high-end printed fabrics . [0003] The fabric must go through a pre-treatment process (sizing) before digital printing. The main purpose is to make the fabric have a certain amount of size, so that the acid ink sprayed on the surface of the fabric will not seep, so ...

Claims

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Application Information

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IPC IPC(8): D06P1/50D06P1/48D06P1/52D06P1/673D06P1/651D06P1/39D06P5/30D06P3/24D06P3/85
CPCD06P1/50D06P1/48D06P1/5292D06P1/673D06P1/65118D06P1/39D06P5/30D06P3/241D06P3/8209
Inventor 姬海涛李正雄
Owner TAICANG BAONI IND CO LTD
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