CN116334950A - Production process of glue for hand towel - Google Patents
Production process of glue for hand towel Download PDFInfo
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- CN116334950A CN116334950A CN202310307206.8A CN202310307206A CN116334950A CN 116334950 A CN116334950 A CN 116334950A CN 202310307206 A CN202310307206 A CN 202310307206A CN 116334950 A CN116334950 A CN 116334950A
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- mixing
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- glue
- starch
- sizing material
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- 239000003292 glue Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229920005610 lignin Polymers 0.000 claims abstract description 46
- 238000002156 mixing Methods 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000012153 distilled water Substances 0.000 claims abstract description 36
- 229920002472 Starch Polymers 0.000 claims abstract description 35
- 239000008107 starch Substances 0.000 claims abstract description 35
- 235000019698 starch Nutrition 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000004513 sizing Methods 0.000 claims abstract description 33
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 26
- 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 claims abstract description 19
- 239000000661 sodium alginate Substances 0.000 claims abstract description 19
- 235000010413 sodium alginate Nutrition 0.000 claims abstract description 19
- 229940005550 sodium alginate Drugs 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008719 thickening Effects 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000839 emulsion Substances 0.000 claims abstract description 14
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000006185 dispersion Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 229920002261 Corn starch Polymers 0.000 claims description 6
- 239000008120 corn starch Substances 0.000 claims description 6
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- 244000017020 Ipomoea batatas Species 0.000 claims description 2
- 235000002678 Ipomoea batatas Nutrition 0.000 claims description 2
- 229920001592 potato starch Polymers 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 13
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000004132 cross linking Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000007334 copolymerization reaction Methods 0.000 abstract description 3
- 238000010382 chemical cross-linking Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 229940032147 starch Drugs 0.000 description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 240000008564 Boehmeria nivea Species 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229940080313 sodium starch Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/23—Lignins
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/30—Alginic acid or alginates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
Landscapes
- Paper (AREA)
Abstract
The invention discloses a production process of glue for hand towel, which belongs to the technical field of daily chemical products and comprises the following steps: mixing lignin and sodium alginate, regulating pH and temperature, stirring and mixing, adding glutaraldehyde, and continuing stirring and reacting to obtain modified lignin; under the protection of nitrogen, mixing starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, regulating pH and temperature, and stirring for reaction to obtain mixed sizing material; mixing the mixed sizing material, the powder sizing material and the thickening liquid, adding distilled water, and stirring and mixing. The modified lignin is prepared by combining sodium alginate and lignin to generate a crosslinking reaction, the modified lignin and starch are taken as raw materials to generate graft copolymerization, so that a mixed sizing material is obtained, physical crosslinking and chemical crosslinking can be formed between the mixed sizing material and pulp fibers, the closer combination is achieved, and the strength of the paper towel is improved after procedures such as papermaking, drying and the like.
Description
Technical Field
The invention belongs to the technical field of daily chemical products, and particularly relates to a production process of glue for hand towel.
Background
The tissue paper is a daily living paper which is widely used, is widely popularized and used by the advantages of sanitation, convenience and the like, and is favored by consumers. With the increasing demand for hand towel, the requirements for quality and performance are also increasing. Part of hand towel products on the market have uneven quality, especially the paper towels have poor softness and toughness, powder can be dropped in the using process, and the paper towels with good softness have lower dry and wet strength.
Disclosure of Invention
The invention aims to provide a production process of glue for hand towel, which aims to solve the problem of low dry and wet strength of the hand towel.
The aim of the invention can be achieved by the following technical scheme:
the production process of the glue for the hand towel comprises the following steps:
mixing lignin and sodium alginate, setting the temperature at 35 ℃, adding sodium hydroxide to adjust the pH value to 8-10, stirring and mixing, adding glutaraldehyde, keeping the temperature unchanged, continuing stirring and reacting for 3-4 hours, cooling, washing with water, and centrifugally separating to obtain modified lignin; sodium alginate and lignin are used as raw materials, and modified lignin is prepared under the action of glutaraldehyde as a crosslinking agent; the sodium alginate can form a film on the surface of pulp fibers, or fill gaps among pulp fibers, so that the strain phenomenon among the fibers is eliminated, and the tensile strength in paper forming is improved; in the invention, the sodium alginate and lignin are combined to generate a crosslinking reaction to prepare modified lignin, and the modified lignin and starch are used as raw materials to generate graft copolymerization under the initiation of ammonium persulfate to obtain the mixed sizing material.
Under the protection of nitrogen, mixing starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, then adding hydrochloric acid to adjust the pH value to 3-5, setting the temperature to 80 ℃, and stirring and reacting for 6-7h to obtain mixed sizing material;
mixing the mixed sizing material, the powder sizing material and the thickening liquid, then adding distilled water, and stirring and mixing for 30-40min to obtain the glue for the hand towel.
Further, the starch is one of corn starch and sweet potato starch.
Further, the dosage mass ratio of lignin, sodium alginate and glutaraldehyde is 10:5:1.
further, the dosage ratio of starch and distilled water was 1g:25mL; the dosage ratio of starch, modified lignin and ammonium persulfate is 20g:5g:0.4g.
Further, in the glue for the hand towel, 18-19 parts of glue stock, 17-18 parts of powder slurry, 0.8-1 part of thickening fluid and 12-13 parts of distilled water are mixed according to parts by weight.
Further, the thickening fluid is prepared by the steps of:
the thickener and distilled water are mixed according to the mass ratio of 1:9, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain thickening liquid, wherein the thickening agent is carboxymethyl cellulose.
Further, the powder slurry is prepared by the steps of:
mixing calcium powder, distilled water and dispersion liquid according to a mass ratio of 20:19:1, mixing, stirring and dispersing for 2 hours under the condition of 1500r/min, then reducing the rotation speed to 500r/min, adding the mixed sizing material, and continuing stirring for 30min to obtain powder slurry; the mass ratio of the mixed sizing material to the calcium powder is 1.2:1.
further, the dispersion is prepared by the steps of:
dispersing agent and distilled water according to the mass ratio of 1.5:1, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain a dispersion liquid, wherein the dispersing agent is sodium lignin sulfonate.
The invention has the beneficial effects that:
in order to improve the dry and wet strength of the paper towel, the invention combines sodium alginate and lignin to generate a crosslinking reaction to prepare modified lignin, takes the modified lignin and starch as raw materials, and generates graft copolymerization under the initiation of ammonium persulfate to obtain a mixed sizing material, wherein the mixed sizing material and paper pulp fibers can form physical crosslinking and chemical crosslinking to achieve tighter combination, and the strength of the paper towel is improved after procedures of papermaking, drying and the like. The lignin is used as a raw material, and sodium alginate and starch are connected, so that sodium alginate in the mixed sizing material is better combined with pulp fibers, on one hand, the dry and wet strength of a finished product is enhanced, and on the other hand, sodium alginate has better hydrophilicity, so that the fibers can be better wetted, meanwhile, the surface charges of the fibers are endowed, the fibers can be more dispersed due to electrostatic repulsion, and the dispersion effect of the pulp is improved. The lignin oxidation resistance influences the ultraviolet radiation resistance of the lignin, so that the lignin can effectively remove free radicals, is considered as a natural antioxidant, and the raw materials selected by the mixed sizing material are safe, green, degradable and more environment-friendly.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides a production process of glue for a piece of hand towel, which comprises the following steps:
sodium lignin sulfonate and distilled water are mixed according to the mass ratio of 1.5:1, and stirring and dispersing at the rotating speed of 300r/min to obtain a dispersion liquid.
Carboxymethyl cellulose and distilled water are mixed according to the mass ratio of 1:9, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain thickening liquid.
Mixing calcium powder, distilled water and dispersion liquid according to a mass ratio of 20:19:1, mixing, stirring and dispersing for 2 hours under the condition of 1500r/min, then reducing the rotation speed to 500r/min, adding the mixed sizing material, and continuing stirring for 30min to obtain powder slurry; the mass ratio of the mixed sizing material to the calcium powder is 1.2:1.
mixing lignin and sodium alginate, setting the temperature to 35 ℃, adding sodium hydroxide to adjust the pH value to 8, stirring and mixing, adding glutaraldehyde, keeping the temperature unchanged, continuing stirring and reacting for 3 hours, cooling, washing with water, and centrifugally separating to obtain modified lignin; the dosage mass ratio of lignin, sodium alginate and glutaraldehyde is 10:5:1, a step of;
under the protection of nitrogen, mixing corn starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, then adding hydrochloric acid to adjust the pH value to 3, and stirring and reacting for 6 hours at the temperature of 80 ℃ to obtain mixed sizing material; the dosage ratio of starch to distilled water is 1g:25mL; the dosage ratio of starch, modified lignin and ammonium persulfate is 20g:5g:0.4g.
According to parts by weight, 18 parts of mixed sizing material, 17 parts of powder slurry and 0.8 part of thickening solution are mixed, then 12 parts of distilled water is added, and stirring and mixing are carried out for 30 minutes, thus obtaining the glue for the toilet paper.
Example 2
The embodiment provides a production process of glue for a piece of hand towel, which comprises the following steps:
sodium lignin sulfonate and distilled water are mixed according to the mass ratio of 1.5:1, and stirring and dispersing at the rotating speed of 300r/min to obtain a dispersion liquid.
Carboxymethyl cellulose and distilled water are mixed according to the mass ratio of 1:9, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain thickening liquid.
Mixing calcium powder, distilled water and dispersion liquid according to a mass ratio of 20:19:1, mixing, stirring and dispersing for 2 hours under the condition of 1500r/min, then reducing the rotation speed to 500r/min, adding the mixed sizing material, and continuing stirring for 30min to obtain powder slurry; the mass ratio of the mixed sizing material to the calcium powder is 1.2:1.
mixing lignin and sodium alginate, setting the temperature to 35 ℃, adding sodium hydroxide to adjust the pH value to 9, stirring and mixing, adding glutaraldehyde, keeping the temperature unchanged, continuing stirring and reacting for 3 hours, cooling, washing with water, and centrifugally separating to obtain modified lignin; the dosage mass ratio of lignin, sodium alginate and glutaraldehyde is 10:5:1, a step of;
under the protection of nitrogen, mixing corn starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, then adding hydrochloric acid to adjust the pH value to be 4, and stirring and reacting for 6 hours at the temperature of 80 ℃ to obtain mixed sizing material; the dosage ratio of starch to distilled water is 1g:25mL; the dosage ratio of starch, modified lignin and ammonium persulfate is 20g:5g:0.4g.
According to parts by weight, 18.5 parts of mixed sizing material, 17.5 parts of powder slurry and 0.9 part of thickening solution are mixed, then 12.5 parts of distilled water is added, and stirring and mixing are carried out for 35 minutes, thus obtaining the glue for the hand towel.
Example 3
The embodiment provides a production process of glue for a piece of hand towel, which comprises the following steps:
sodium lignin sulfonate and distilled water are mixed according to the mass ratio of 1.5:1, and stirring and dispersing at the rotating speed of 300r/min to obtain a dispersion liquid.
Carboxymethyl cellulose and distilled water are mixed according to the mass ratio of 1:9, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain thickening liquid.
Mixing calcium powder, distilled water and dispersion liquid according to a mass ratio of 20:19:1, mixing, stirring and dispersing for 2 hours under the condition of 1500r/min, then reducing the rotation speed to 500r/min, adding the mixed sizing material, and continuing stirring for 30min to obtain powder slurry; the mass ratio of the mixed sizing material to the calcium powder is 1.2:1.
mixing lignin and sodium alginate, setting the temperature to 35 ℃, adding sodium hydroxide to adjust the pH value to 10, stirring and mixing, adding glutaraldehyde, keeping the temperature unchanged, continuing stirring and reacting for 4 hours, cooling, washing with water, and centrifugally separating to obtain modified lignin; the dosage mass ratio of lignin, sodium alginate and glutaraldehyde is 10:5:1, a step of;
under the protection of nitrogen, mixing corn starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, then adding hydrochloric acid to adjust the pH value to 5, and stirring and reacting for 7 hours at the temperature of 80 ℃ to obtain mixed sizing material; the dosage ratio of starch to distilled water is 1g:25mL; the dosage ratio of starch, modified lignin and ammonium persulfate is 20g:5g:0.4g.
According to parts by weight, 19 parts of mixed sizing material, 18 parts of powder slurry and 1 part of thickening solution are mixed, 13 parts of distilled water is added, and stirring and mixing are carried out for 40 minutes, so as to obtain the glue for the hand towel.
Comparative example 1
This comparative example uses untreated lignin as compared to example 3, as follows:
under the protection of nitrogen, mixing corn starch and distilled water to obtain starch emulsion, adding lignin and ammonium persulfate into the starch emulsion, then adding hydrochloric acid to adjust the pH value to 5, setting the temperature to 80 ℃, and stirring and reacting for 7 hours to obtain mixed sizing material; the dosage ratio of starch to distilled water is 1g:25mL; the dosage ratio of starch, lignin and ammonium persulfate is 20g:5g:0.4g.
The remaining raw materials and preparation process remain the same as in example 3.
Example 4
The embodiment provides a piece of hand towel, which comprises cotton pulp with the fiber length of 2.5-6mm, virgin wood pulp with the fiber length of 0.8-3.5mm and ramie pulp with the fiber length of 2-3.8mm, wherein the dosage mass ratio of the cotton pulp, the virgin wood pulp and the ramie pulp is 1:1:0.2; the amount of glue used in the tissue paper is 5% of the total amount of fibers. And (3) carrying out squeezing dehydration and hot air drying treatment on the paper web to ensure that the dryness of the paper web is 96%, thus obtaining the hand towel.
According to the preparation process of example 4, a sample to be tested is prepared, the mass of the sample being 20+ -2 g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the The glue for hand towel prepared in examples 1-3 and comparative example 1 was tested and the tensile strength was measured by means of a FRANK-PTI tensile strength tester according to the standard GB/T12914-2008 paper and board tensile strength measurement method. Wet tensile strength was measured by wetting the center portion of the strip, keeping the ends dry, and using a FRANK-PTI tensile strength tester;
the results are shown in Table 1:
TABLE 1
| Project | Example 1 | Example 2 | Example 3 | Comparative example1 |
| Dry tensile index (/ N.m.g) -1 ) | 72.1 | 72.2 | 72.1 | 65.2 |
| 2min wet resistance index (/ N.m.g) -1 ) | 18.66 | 18.68 | 18.67 | 10.74 |
| Wet Strength for 2min (%) | 29.4 | 29.5 | 29.5 | 18.34 |
From table 1, it can be seen that the glue for hand towel prepared by the invention can well improve the tensile strength of paper, and has good improvement effect on wet strength.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The production process of the glue for the hand towel is characterized by comprising the following steps of:
mixing lignin and sodium alginate, adjusting pH to 8-10, setting the temperature to 35 ℃, stirring and mixing, adding glutaraldehyde, keeping the temperature unchanged, continuing stirring and reacting for 3-4h, cooling, washing with water, and centrifuging to obtain modified lignin;
under the protection of nitrogen, mixing starch and distilled water to obtain starch emulsion, adding modified lignin and ammonium persulfate into the starch emulsion, adjusting the pH value to 3-5, setting the temperature to 80 ℃, and stirring and reacting for 6-7h to obtain mixed sizing material;
mixing the mixed sizing material, the powder sizing material and the thickening liquid, then adding distilled water, and stirring and mixing for 30-40min to obtain the glue for the hand towel.
2. The process for producing the glue for the toilet paper according to claim 1, wherein the starch is one of corn starch and sweet potato starch.
3. The process for producing the glue for the tissue paper according to claim 1, wherein the dosage mass ratio of lignin, sodium alginate and glutaraldehyde is 10:5:1.
4. the process for producing a glue for a toilet paper according to claim 1, wherein the ratio of the amount of starch to distilled water is 1g:25mL; the dosage ratio of starch, modified lignin and ammonium persulfate is 20g:5g:0.4g.
5. The process for producing the glue for the hand towel according to claim 1, wherein 18-19 parts of glue stock, 17-18 parts of powder slurry, 0.8-1 part of thickening fluid and 12-13 parts of distilled water are mixed according to parts by weight.
6. The process for producing a glue for a toilet paper according to claim 1, wherein the thickening fluid is prepared by:
the thickener and distilled water are mixed according to the mass ratio of 1:9, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain thickening liquid, wherein the thickening agent is carboxymethyl cellulose.
7. The process for producing a glue for a toilet paper according to claim 1, wherein the powder slurry is prepared by the steps of:
mixing calcium powder, distilled water and dispersion liquid according to a mass ratio of 20:19:1, mixing, stirring and dispersing for 2 hours under the condition of 1500r/min, then reducing the rotation speed to 500r/min, adding the mixed sizing material, and continuing stirring for 30min to obtain powder slurry; the mass ratio of the mixed sizing material to the calcium powder is 1.2:1.
8. a process for producing a glue for hand tissues according to claim 7, characterized in that said dispersion is prepared by the steps of:
dispersing agent and distilled water according to the mass ratio of 1.5:1, mixing, and stirring and dispersing at the rotating speed of 300r/min to obtain a dispersion liquid, wherein the dispersing agent is sodium lignin sulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310307206.8A CN116334950A (en) | 2023-03-27 | 2023-03-27 | Production process of glue for hand towel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310307206.8A CN116334950A (en) | 2023-03-27 | 2023-03-27 | Production process of glue for hand towel |
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| CN116334950A true CN116334950A (en) | 2023-06-27 |
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| CN202310307206.8A Pending CN116334950A (en) | 2023-03-27 | 2023-03-27 | Production process of glue for hand towel |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020068862A (en) * | 2001-02-23 | 2002-08-28 | 변유량 | Cationic mixed polymer, producing method thereof, and additive for paper making containing it |
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