CN115637596A - Biomass foam printing paste and application thereof in foam printing of cotton fabrics - Google Patents
Biomass foam printing paste and application thereof in foam printing of cotton fabrics Download PDFInfo
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- CN115637596A CN115637596A CN202211463450.5A CN202211463450A CN115637596A CN 115637596 A CN115637596 A CN 115637596A CN 202211463450 A CN202211463450 A CN 202211463450A CN 115637596 A CN115637596 A CN 115637596A
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- foam
- printing
- sodium carboxymethyl
- foaming
- paste
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- 238000007639 printing Methods 0.000 title claims abstract description 164
- 239000006260 foam Substances 0.000 title claims abstract description 163
- 239000004744 fabric Substances 0.000 title claims abstract description 31
- 239000002028 Biomass Substances 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 title claims abstract description 18
- 238000005187 foaming Methods 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 34
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 32
- 239000011734 sodium Substances 0.000 claims abstract description 32
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 31
- 229920002472 Starch Polymers 0.000 claims abstract description 24
- 239000008107 starch Substances 0.000 claims abstract description 24
- 235000019698 starch Nutrition 0.000 claims abstract description 24
- 238000006467 substitution reaction Methods 0.000 claims abstract description 24
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 19
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 239000004088 foaming agent Substances 0.000 claims description 25
- 238000010025 steaming Methods 0.000 claims description 25
- 239000000975 dye Substances 0.000 claims description 23
- 239000003381 stabilizer Substances 0.000 claims description 23
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 17
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 10
- 239000000985 reactive dye Substances 0.000 claims description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 9
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 9
- 239000004202 carbamide Substances 0.000 claims description 9
- 229920000570 polyether Polymers 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 8
- 239000004711 α-olefin Substances 0.000 claims description 8
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecanol group Chemical group C(CCCCCCCCCCC)O LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 13
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 13
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 13
- 238000002156 mixing Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000004043 dyeing Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 229940083575 sodium dodecyl sulfate Drugs 0.000 description 7
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002562 thickening agent Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000661 sodium alginate Substances 0.000 description 2
- 235000010413 sodium alginate Nutrition 0.000 description 2
- 229940005550 sodium alginate Drugs 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920003123 carboxymethyl cellulose sodium Polymers 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- -1 dyes Chemical class 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Coloring (AREA)
Abstract
The invention relates to the technical field of printing, in particular to a foam printing paste, a foam printing slurry, a foam printing method and application thereof, wherein the biomass foam printing paste comprises sodium carboxymethyl cellulose and sodium carboxymethyl starch, and the weight ratio of the sodium carboxymethyl cellulose to the sodium carboxymethyl starch is 1:4-10, wherein the substitution degree of the sodium carboxymethyl cellulose is 0.9-1.4, and the substitution degree of the sodium carboxymethyl starch is 0.6-1.2. Compared with the prior art, the biomass foam printing paste provided by the invention adopts the sodium carboxymethyl cellulose and the sodium carboxymethyl starch with specific substitution degree, which have the advantages of low cost, environmental protection and no harm to skin, so that when the paste is used for foam printing of cotton fabrics, the paste has good foaming performance and clear printing outline, can not be stained and can not block the meshes of a printing net under the condition of small using amount, and the washing waste liquid containing the paste obtained by washing after printing can not pollute the environment.
Description
Technical Field
The invention relates to the technical field of printing, in particular to foam printing paste, foam printing slurry, a foam printing method and application.
Background
The foam technology has great application potential in printing and dyeing because of the extremely small water consumption. The transfer medium of the foam printing is foam, and compared with the traditional printing technology, the solid content and the water content of the foam printing are low, so that the using amount of water can be reduced, and the using amount of dye and auxiliaries can be reduced. Therefore, the research on the foam printing is significant, the future ecological development direction is met, and the prospect is wide.
In the foam printing technology, because foams need to carry various compounds such as dyes, auxiliaries and pastes, foaming performance (such as foaming amount and stability) of the foams is easily affected, and printing effects (such as leveling property, outline definition and dye uptake) are affected; wherein, the printing definition is directly influenced by the thickener, the thickener dosage is too much, the viscosity is large, the foaming performance is influenced, the mesh holes of the printing screen can be blocked, the thickener dosage is too little, the textile can not be dyed by enough dye, the bleeding can be realized, and the printing outline is not clear. However, when the existing printing paste is used for foam printing, especially for foam printing of cotton fabrics, the interaction force with the foaming agent is difficult to control properly, the foaming efficiency is low, the foaming ratio is small, the paste-saving, energy-saving and water-saving effects required by foaming cannot be achieved, and proper paste compounding and application are very important.
Disclosure of Invention
The invention aims to overcome the defects of small foaming ratio and poor foam stability of printing paste used for foam printing, particularly foam printing of cotton fabrics in the prior art, and provides biomass foam printing paste and application thereof in foam printing of cotton fabrics.
In order to achieve the above object, a first aspect of the present invention provides a biomass foam printing paste, comprising carboxymethyl cellulose and sodium carboxymethyl starch, wherein the weight ratio of the carboxymethyl cellulose to the sodium carboxymethyl starch is 1:4-10, wherein the substitution degree of the sodium carboxymethyl cellulose is 0.7-1.3, and the substitution degree of the sodium carboxymethyl starch is 0.6-1.2.
The invention provides foam printing paste in a second aspect, which comprises the biomass foam printing paste in the first aspect, a dye, a foaming agent, a foam stabilizer and water, wherein the biomass foam printing paste accounts for 3-6%, the foaming agent accounts for 0.2-0.6% and the foam stabilizer accounts for 0.5-1% of the total amount of the foam printing paste.
Preferably, the foaming agent is sodium dodecylbenzene sulfonate or sodium dodecyl sulfate, in combination with sodium alpha-olefin sulfonate; wherein the mass ratio of the alpha-olefin sodium sulfonate to the sodium dodecyl benzene sulfonate or the sodium dodecyl sulfate is 1:0.5-1.
Preferably, the foam stabilizer is lauryl alcohol or silicone polyether emulsion.
Preferably, the dye is a reactive dye and the pH of the foam printing paste is above 10.5.
Preferably, the foam printing paste does not contain urea or an alkaline agent.
The third aspect of the invention provides a foam printing method for cotton fabrics, which comprises the following steps:
(1) Foaming the foam printing slurry of the second aspect to obtain a printing foam liquid;
(2) The cotton fabric is printed by adopting the printing foam liquid, and then steaming is directly carried out without drying.
Has the advantages that:
compared with the prior art, the biomass foam printing paste provided by the invention adopts the sodium carboxymethylcellulose (CMC) and the sodium carboxymethyl starch (CMS) with specific substitution degree, which are low in cost, environment-friendly and harmless to the skin, and the CMC and the CMS are matched for use, so that the advantages of the CMC and the CMS can be complemented, and good foam color paste and printing performance can be obtained, so that when the paste is used for foam printing of cotton fabrics, the foaming performance is good, the printing contour is clear, the paste cannot be stained, the meshes of a printing screen cannot be blocked, the washing waste liquid containing the paste obtained by washing after printing cannot pollute the environment, and the paste cannot harm human bodies even if being left on the fabrics.
The inventor of the invention discovers through a great deal of research that cotton fabrics are printed by using reactive dyes at present, the conventional printing generally adopts mixtures containing sodium alginate, and the price is increased because the output of the sodium alginate which can be used for printing is influenced by ocean pollution and large use in food industry. CMS with proper substitution degree is low in price, easy to biodegrade, easy to paste, moderate in viscosity, usually used for printing paste, but cannot be used independently, the water retention performance of CMS is insufficient, the towing performance (or wire drawing performance) is poor, pattern infiltration can be caused, the definition is reduced, and the printing performance is poor; CMC is used as printing paste of reactive dye, a certain degree of substitution is needed, a certain amount of carboxyl negative ions on a molecular chain are enabled not to react with the reactive dye, and the color yield and the hand feeling of a printed fabric are ensured; from the foaming angle of the color paste, the paste cannot have too high viscosity, and cannot ensure higher foaming ratio. Therefore, good printing effect can be obtained only when the sodium carboxymethyl cellulose and the sodium carboxymethyl starch with specific degrees of substitution within specific weight ratios are used for foam printing. And when the weight ratio is less than 1:4, the CMC concentration is high, the viscosity of the original paste is high, the foaming effect is not good, and when the weight ratio is more than 1: when 10 hours, the color paste has low viscosity, the foam stability is slightly poor, and the printing performance is also poor. Under the same conditions, if the paste is combined by adopting the non-salt form of carboxymethyl starch and carboxymethyl cellulose, the paste is not beneficial to forming paste, the retention of the activity of each component and the formation of color paste.
The foam printing paste provided by the invention has good foaming performance, can ensure that the printing contour is clear, the printing is not stained, the color yield is high, the level-dyeing property is good under the condition that auxiliaries (such as urea and an alkaline agent) are not added, and the meshes of a printing screen cannot be blocked when the foam printing paste is used for foam printing of cotton fabrics.
According to the foam printing method for the cotton fabric, the specific foam printing slurry is adopted, and after foaming, the dye, the foaming agent, the foam stabilizer and the paste can be loaded under the condition of extremely low water consumption, so that the printed fabric can be directly steamed without a drying process; the drying process is saved, so that the energy consumption and the cost of drying equipment are saved; the continuous process of printing-steaming color development can be realized in the production; moreover, the printing effect is good, the printing is not stained, the outline is clear, and the addition of the traditional assistant for assisting dissolution and moisture absorption is not needed.
Detailed Description
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
As mentioned above, the first aspect of the present invention provides a foam printing paste, comprising sodium carboxymethyl cellulose (CMC) and sodium carboxymethyl starch (CMS), wherein the weight ratio of sodium carboxymethyl cellulose to sodium carboxymethyl starch is 1:4-10, wherein the substitution degree of the sodium carboxymethyl cellulose is 0.7-1.3, and the substitution degree of the sodium carboxymethyl starch is 0.6-1.2.
The substitution degree of the sodium carboxymethylcellulose is 0.7 to 1.3, specifically, for example, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, and the like. The degree of substitution of the sodium carboxymethyl starch is 0.6 to 1.2, specifically, for example, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, and the like.
Preferably, the weight ratio of the sodium carboxymethyl cellulose to the sodium carboxymethyl starch is 1:5-9; the substitution degree of the sodium carboxymethyl cellulose is 0.9-1.2, and the substitution degree of the sodium carboxymethyl starch is 0.7-0.9. By adopting the preferred scheme of the invention, the regulation and control effect of the thickener on the foam performance and the printing characteristic can be fully exerted, and when the thickener is used for foam printing, the foam performance is better, especially the foaming amount is larger, the stability is better, the printing effect is good, the printing outline is clear, and the staining is avoided.
As mentioned above, the second aspect of the present invention provides a foam printing paste, comprising the biomass foam printing paste of the first aspect, a dye, a foaming agent, a foam stabilizer and water, wherein the content of the biomass foam printing paste is 3-6%, the content of the foaming agent is 0.2-0.6% and the content of the foam stabilizer is 0.5-1% based on the total amount of the foam printing paste.
In the present invention, it is understood that the content of the dye can be determined according to the requirement of printing color, and the balance is water.
In the invention, the foam printing paste refers to unfoamed color paste.
Preferably, the content of the biomass foam printing paste is 3-5%, the content of the foaming agent is 0.3-0.5%, and the content of the foam stabilizer is 0.7-0.9% based on the total amount of the foam printing paste. Under this preferred scheme, the foaming performance is better, and especially the foaming volume further improves, and stability further promotes.
Preferably, the foaming agent is at least one of sodium dodecylbenzene sulfonate (SDBS), sodium dodecyl sulfate, and sodium Alpha Olefin Sulfonate (AOS).
According to the present invention, preferably, the foaming agent is sodium dodecylbenzene sulfonate (SDBS) or sodium dodecylsulfate in combination with sodium alpha-olefin sulfonate (AOS), that is, may be a combination of sodium dodecylbenzene sulfonate and AOS, and may also be a combination of sodium dodecylsulfate and AOS. Preferably, the mass ratio of the sodium alpha-olefin sulfonate to the sodium dodecylbenzene sulfonate or sodium dodecyl sulfate is 1:0.5 to 1, specifically such as 1:0.5, 1:0.6, 1:0.7, 1:0.8, 1:0.9, 1:1, etc. Under the preferable scheme, the foaming machine adopts the specific foaming agent, so that the generated foam is uniform in size and rich in foam in the polishing process of the foaming machine, the control of the foaming ratio is facilitated, the higher foaming ratio can be obtained, and the water consumption is reduced.
Preferably, the foam stabilizer is lauryl alcohol or silicone polyether emulsion. Under the preferable scheme, the foam stabilizer adopts the specific foam stabilizer, can keep the stability of the foam, enables the foam not to be easily broken, prolongs the half-life period of the foam, and is more beneficial to a foam printing process.
In a more preferred embodiment of the present invention, the foaming agent is sodium dodecylbenzene sulfonate and AOS, and the foam stabilizer is a silicone polyether emulsion. With this preferred embodiment, the foaming performance is best.
In the present invention, the range of the silicone polyether emulsion is wide enough to facilitate foam stabilization, and generally, the polyether content of the silicone polyether emulsion is more than 40%, for example, the commercially available FM-550 foam stabilizer.
According to the invention, the selectable range of the dye is wide as long as the foaming performance is not influenced; preferably, the dye is a reactive dye. The present invention is not limited to any particular kind of the reactive dye, and any of them can be used in the present invention.
According to the invention, the dye is a reactive dye, the pH of the foam printing paste is above 10.5, preferably, the foam printing paste does not contain urea or an alkaline agent, and the components contained in the foam printing paste can reach a high-activity environment with the pH above 10.5 (preferably 10.5-11), so that the printing performance such as color yield and the like can be improved. The inventors of the present invention have found that this preferred embodiment of the present invention allows better printing results (including edge definition and colour yield and levelling) to be obtained, while the solution containing urea or alkaline agent reduces the colour yield under otherwise the same conditions. In the present invention, the alkali agent is an alkali agent generally used in reactive dye printing, and examples thereof include sodium carbonate and sodium silicate.
According to a preferred embodiment of the present invention, the foam printing paste comprises the biomass foam printing paste of the first aspect, a dye, a foaming agent, a foam stabilizer and water, wherein the biomass foam printing paste is contained in an amount of 3-6%, the foaming agent is contained in an amount of 0.2-0.6% and the foam stabilizer is contained in an amount of 0.5-1% based on the total amount of the foam printing paste; the foaming agent is sodium dodecyl benzene sulfonate or sodium dodecyl sulfate and the combination of alpha-olefin sodium sulfonate, and the foam stabilizer is silicone polyether emulsion; the dye is a reactive dye; the foam printing slurry does not contain urea or an alkaline agent. Under this preferred scheme, the foamability is better, and the stamp effect is better, and saves raw materials cost, the energy saving consumes.
The method for preparing the foam printing paste is not limited in any way as long as the materials can be dissolved. The components of the foam printing paste can be mixed in advance or can be directly and respectively mixed with other materials of the foam printing paste, and the foaming agent is added while stirring at a low speed to avoid foaming. Preferably, the method of formulating a foam printing paste comprises: mixing water and biomass foam printing paste, adding a dye, mixing, adding a foam stabilizer, mixing, adding a foaming agent, slowly stirring and mixing to dissolve the foaming agent and avoid foaming to obtain foam printing slurry.
As previously mentioned, a third aspect of the present invention provides a foam printing method for cotton fabric, comprising the steps of:
(1) Foaming the foam printing slurry of the second aspect to obtain a printing foam liquid;
(2) The cotton fabric is printed by adopting the printing foam liquid, and then steaming is directly carried out without drying.
In the steaming process, the dye is dyed and fixed, and the fabric is colored.
According to the invention, preferably, the foaming ratio (BR) of the foaming is between 4 and 10. In the present invention, the foaming ratio is the ratio of the volume of the foam obtained after foaming the dye liquor to the volume of the dye liquor before foaming.
More preferably, the foaming ratio of the foaming is 6 to 8. The inventor researches and finds that the foam printing paste has better printing effect when the foaming ratio under the preferable scheme is met; this is because the foam ratio affects the uniformity of the foam size arrangement, and in this preferred embodiment, the liquid-carrying regions between the foams are relatively uniformly dispersed, so that the leveling property of each portion is further improved when printing on the fabric, and the occurrence of color difference is improved.
In the present invention, the equipment used for the foaming is not limited at all, and may be, for example, a foam dyeing machine.
In the step (2) of the present invention, there is no limitation on the printing process as long as the printing foam concentrate can be applied to the fabric in the shape of the desired pattern (also called pattern); for example, in some embodiments, the process of printing comprises: firstly, placing a printing screen with required printed patterns on the surface of the fabric, then placing printing foam liquid on the surface of the printing screen, and carrying out scraping printing by adopting a scraper, wherein in the scraping printing process, the printing foam liquid penetrates through the printing screen to reach the surface of the fabric.
According to the present invention, preferably, the conditions of the steaming comprise: the steaming temperature is 100-130 deg.C, and the steaming time is 5-15min.
More preferably, the steaming conditions comprise: the steaming temperature is 120-130 deg.C, and the steaming time is 10-15min.
The present invention does not limit the amount of steam used in the steaming, and the steaming may be performed in a steam environment, and generally, the amount of steam used in a steaming apparatus may be set to be used in the steaming of the present invention.
In the present invention, after the steaming, the skilled person can also optionally wash with water, soaping to remove the flooding according to the actual need. The method for washing and soaping is not limited at all, and is a conventional method in the field, and the invention is not described in detail herein.
According to a preferred embodiment of the present invention, the foam printing method comprises the steps of:
(1) Foaming the foam printing slurry to obtain printing foam liquid; the foaming ratio of the foaming is 6-8;
(2) Printing the cotton fabric by using the printing foam liquid, and then directly steaming without drying; the steaming conditions include: the steaming temperature is 100-130 deg.C, and the steaming time is 5-15min. Under the preferred scheme, the foaming performance is optimal, and the printing effect is optimal.
The present invention will be described in detail below by way of examples. In the following examples, the starting materials are all commercially available products unless otherwise specified; wherein the dye is reactive red 3BF available from Annohis dye company.
Example 1
(1) Preparing foam printing slurry:
mixing water and biomass foam printing paste, adding a dye for mixing, adding a foam stabilizer FM-550 (purchased from LvSen chemical Co., ltd., linyi city) for mixing, adding a foaming agent SDBS and AOS (the mass ratio of the SDBS to the AOS is 0.8) for slowly stirring and mixing so as to dissolve the mixture and avoid foaming, and obtaining foam printing slurry; wherein, the content of the water meets the total amount of 100 percent of the foam printing sizing agent.
(2) Foaming the foam printing slurry on a foam dyeing machine to obtain printing foam liquid;
(3) And (3) scraping and printing the cotton fabric by adopting the printing foam liquid, then directly steaming without drying, and then washing and soaping the steamed fabric and drying at 65 ℃ to obtain the printed fabric. Wherein the soaping formula is Na 2 CO 3 1g/L, 2.5g/L dispersing agent, 2g/L cellulose starch sodium and 2g/L soaping agent.
Wherein, the raw material composition and the process parameters are shown in the table 1.
And (4) setting a control group, drying the fabric obtained by the scraping printing in the step (3) at 80 ℃, then steaming, and keeping the fabric unchanged.
Examples 2 to 3
The procedure was carried out analogously to example 1, except that the starting material compositions and the process parameters indicated in Table 1 were used.
TABLE 1
Example 4
The procedure is carried out analogously to example 1, except that the degrees of substitution of the components of the foam printing paste are different, in particular the degree of substitution of sodium carboxymethyl starch is 0.7 and the degree of substitution of sodium carboxymethyl cellulose is 0.8.
Example 5
The procedure is analogous to example 1, except that the blowing agent is SDBS and no AOS is added.
Example 6
The procedure was carried out analogously to example 1, except that 1% urea was also introduced into the foam printing paste, and the urea and the foam printing paste were mixed together with water.
Example 7
The procedure is analogous to example 1, except that 1% sodium carbonate (alkaline agent) is also incorporated into the foam printing paste, the alkaline agent and the foam printing paste being mixed together with water.
Example 8
The procedure was carried out in analogy to example 1, except that the foam stabilizer used dodecanol instead of silicone polyether emulsion FM-550 of example 1.
Comparative example 1
The procedure was carried out in a similar manner to example 1, except that the composition of the foam printing paste was different, and specifically, CMS (sodium carboxymethyl starch) was used only as the paste in place of CMC and CMS of example 1, and the amount of CMS used was the same as the total amount of CMC and CMS of example 1.
Comparative example 2
The procedure was carried out in a similar manner to that of example 1, except that the amount of the foam printing paste, the amount of the foaming agent and the amount of the foam stabilizer were varied, specifically, 5% for the foam printing paste, 0.2% for the foaming agent and 0.4% for the foam stabilizer.
Comparative example 3
The procedure was carried out analogously to example 1, except that the weight ratio of CMC to CMS was 5.6.
Test example 1
The foam printing pastes of the above examples and comparative examples were foamed separately, and the amount of foaming and the liquid-out time in the foam were measured, and the results are shown in table 2.
The method for testing the foaming amount comprises the following steps: and (3) stirring for 1min at the rotating speed of 1000r/min, and then stopping stirring, and recording the foaming volume H, the initial volume of the foam printing slurry as L and the foaming amount as H-L. The test data were recorded in triplicate and the average was determined.
The method for testing the liquid precipitation time in the foam comprises the following steps: and after the stirring is stopped, waiting for the foam to change, and recording the time when liquid just appears at the bottom of the foam, namely the liquid precipitation time. The reaction was repeated three times, and the liquid deposition times were recorded, respectively, to obtain an average value.
TABLE 2
Test example 2
The printed fabrics obtained in the above examples and comparative examples were subjected to the tests of definition of the profile, the amount of color yield (characterized by K/S value), level-dyeing property, and color fastness, respectively. The test results are shown in table 3.
The grading method of the definition of the outline is determined according to the difference between a printing object and a screen pattern, and the grading method is divided into 5 grades of excellent, good, medium, acceptable and poor. Leveling Properties were rated according to the method. The testing methods of K/S value, level dyeing property, rubbing fastness and soaping fastness are the same as the method in CN 107604709A.
TABLE 3
As can be seen from the results of tables 1 to 3, the examples of the present invention have significantly better effects, and give consideration to better definition of the profile, higher color yield and level-dyeing property, while achieving high fastness. As can be seen from comparison between the embodiment 1 and the embodiments 2 to 4, the preferable biomass foam printing paste is more beneficial to the foaming performance of foam color paste and the improvement of the stability of foam, so that better printing performance is obtained, and the color yield of foam printing is particularly beneficial to the improvement. Comparing the example 1 with the example 4, it can be seen that the adoption of the preferable mixture ratio of the CMC with the substitution degree of 1.1 and the CMS with the substitution degree of 0.8 is more beneficial to the foaming of the color paste and the stability of the foam, and the color yield is improved. Comparing example 1 with example 7, it can be seen that, the differences of the performances are not large when the preferred SDBS and AOS are used as foaming agents, and the preferred combination of SDBS and AOS is more beneficial to reducing the cost and improving the color yield. As can be seen from the comparison of examples 1 and 6, the use of the preferred additive without urea is more advantageous in terms of the amount of color and the sharpness of the contour, and the wet crockfastness. It is seen from the comparison between example 1 and example 7 that the use of a preferred additive of no sodium carbonate (alkaline agent) is more advantageous in improving leveling property and sharpness of the contour.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (10)
1. The biomass foam printing paste is characterized by comprising sodium carboxymethyl cellulose and sodium carboxymethyl starch, wherein the weight ratio of the sodium carboxymethyl cellulose to the sodium carboxymethyl starch is 1:4-10, wherein the substitution degree of the sodium carboxymethyl cellulose is 0.9-1.4, and the substitution degree of the sodium carboxymethyl starch is 0.6-1.2.
2. The biomass foam printing paste according to claim 1, wherein the weight ratio of sodium carboxymethyl cellulose to sodium carboxymethyl starch is 1:5-9; the substitution degree of the sodium carboxymethyl cellulose is 0.9-1.2, and the substitution degree of the sodium carboxymethyl starch is 0.7-0.9.
3. A foam printing slurry, which is characterized by comprising the biomass foam printing paste, a dye, a foaming agent, a foam stabilizer and water according to claim 1 or 2, wherein based on the total amount of the foam printing slurry, the content of the biomass foam printing paste is 3-6%, the content of the foaming agent is 0.2-0.6%, and the content of the foam stabilizer is 0.5-1%.
4. A foam printing paste according to claim 3, wherein the foaming agent is sodium dodecyl benzene sulfonate or sodium dodecyl sulfate, in combination with sodium alpha-olefin sulfonate; wherein the mass ratio of the alpha-olefin sodium sulfonate to the sodium dodecyl benzene sulfonate or the sodium dodecyl sulfate is 1:0.5-1.
5. The foam printing paste according to claim 3, wherein the foam stabilizer is dodecanol or a silicone polyether emulsion.
6. The foam printing paste according to claim 3, wherein the dye is a reactive dye and the pH of the foam printing paste is above 10.5.
7. Foam printing paste according to claim 3, characterised in that no urea or alkaline agent is present in the foam printing paste.
8. A foam printing method for cotton fabrics is characterized by comprising the following steps:
(1) Foaming the foam printing paste according to any one of claims 3-7 to obtain a printing foam concentrate;
(2) The cotton fabric is printed by adopting the printing foam liquid, and then steaming is directly carried out without drying.
9. The method of claim 8, wherein the foaming has a foaming ratio of 4 to 10; the steaming conditions include: the steaming temperature is 100-130 deg.C, and the steaming time is 5-15min.
10. The method of claim 9, wherein the foaming has a foaming ratio of 6 to 8.
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