CN114391769A - Environment-friendly toilet paper and preparation method thereof - Google Patents
Environment-friendly toilet paper and preparation method thereof Download PDFInfo
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- CN114391769A CN114391769A CN202210091099.5A CN202210091099A CN114391769A CN 114391769 A CN114391769 A CN 114391769A CN 202210091099 A CN202210091099 A CN 202210091099A CN 114391769 A CN114391769 A CN 114391769A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004902 Softening Agent Substances 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 20
- 230000003449 preventive effect Effects 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000004537 pulping Methods 0.000 claims abstract description 8
- 239000011268 mixed slurry Substances 0.000 claims abstract description 7
- 238000007796 conventional method Methods 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 41
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 41
- 229920001131 Pulp (paper) Polymers 0.000 claims description 38
- 239000000835 fiber Substances 0.000 claims description 36
- 239000000126 substance Substances 0.000 claims description 33
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 16
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 16
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 16
- 229920002755 poly(epichlorohydrin) Polymers 0.000 claims description 16
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 16
- 239000011347 resin Substances 0.000 claims description 16
- 235000014676 Phragmites communis Nutrition 0.000 claims description 15
- -1 polyethylene terephthalate Polymers 0.000 claims description 14
- 239000003242 anti bacterial agent Substances 0.000 claims description 8
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 29
- 239000000428 dust Substances 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000011121 hardwood Substances 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 4
- 238000005213 imbibition Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
-
- 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
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- 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
-
- 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
-
- 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
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Sanitary Thin Papers (AREA)
Abstract
The invention relates to an environment-friendly toilet paper and a preparation method thereof, and the preparation method comprises the following steps: preparing materials; mixing the slurry; adding a softening agent, a wet strength agent and a mildew preventive into the mixed slurry in sequence, and mixing and stirring uniformly; treating the obtained pulp by a pressure screen, adding talcum powder filler, mixing, uniformly stirring, manufacturing a wet paper sheet on a crescent toilet paper machine by a conventional method, drying by a drying cylinder, and controlling the dryness of the paper sheet to be 93-97%; and (4) carrying out scraper wrinkling and coiling on the dried toilet paper leaves to obtain the environment-friendly toilet paper. The invention reduces the generation of paper wadding dust in a production workshop, improves the workshop operation environment and reduces the fire hazard; the pollution of pulping is reduced, and the cost is reduced; the fine feeling of the surface of the toilet paper is improved, the quality of the toilet paper is improved, and the production cost of the toilet paper is reduced.
Description
Technical Field
The invention belongs to the field of toilet paper, and particularly relates to environment-friendly toilet paper and a preparation method thereof.
Background
With the improvement of living standard of people, the usage amount of daily paper for all people in China is increased year by year. The toilet paper is the most common household paper, and the toilet paper for toilet (short for toilet paper) belongs to the category of the household paper, is the most common type of the household paper, is the paper type most needed by everyone in daily life, and is the only functional paper product which can not be replaced by other related products in the household paper.
In the production process of toilet paper, short fiber wood pulp is used, so that paper wadding dust formed by the short fibers after the toilet paper is dried in the production process is very serious, the workshop operation environment is poor, and fire hazard is large. Meanwhile, the toilet paper has a single use, is only used for wiping dirt, is a disposable sanitary product, and needs to be flushed away with the dirt after being wiped once, or is burnt or buried as garbage. Functionally, the toilet paper product only needs to meet the use requirements and have qualified sanitary indexes, and whether the product is high in whiteness or not and whether the product is produced by 100% primary pulp or not is irrelevant, so that the cost is increased and the raw materials are wasted due to the fact that the bleached wood pulp is completely used for production. Therefore, on the basis of ensuring the product application of the toilet paper, the potential safety hazard of workshop production is solved, the production cost is reduced, and the development of new environment-friendly toilet paper is very necessary.
Polyester fiber (PET) is a main raw material for producing non-woven fabrics, and has the characteristics of moisture resistance, air permeability, flexibility, lightness, thinness, no toxicity, no odor, low price and the like. Unbleached chemical pulp generally refers to unbleached chemical pulp having a high lignin content, but the pulp fiber properties are substantially the same as those of chemical pulp, especially in softness, similar to bleached chemical pulp and far superior to mechanical pulp. The talcum powder is a common filler in the paper making process, is low in cost and easy to obtain, and is mainly used for cultural paper and packaging paper. The talcum powder is an inorganic substance, so that the talcum powder is not easy to generate bacterial breeding, and the addition of the filler does not influence the sterilization and disinfection of the toilet paper product, but is beneficial to improving the fine feeling of the surface of the toilet paper and improving the quality of the toilet paper.
Therefore, the unbleached chemical pulp is used, PET is used for replacing short fiber wood pulp, meanwhile, talcum powder is added to filler to produce brand new toilet paper, paper wadding dust generated in the toilet paper production process can be reduced, environment-friendly production is achieved, the production cost of the toilet paper can be reduced, and production of novel environment-friendly toilet paper is achieved.
Disclosure of Invention
In order to solve the problems, the invention provides environment-friendly toilet paper and a preparation method thereof, which overcome the defects of the existing toilet paper production and reduce the production cost of the toilet paper.
The technical scheme of the invention is as follows:
a preparation method of environment-friendly toilet paper comprises the following steps:
preparing materials according to the following components:
10-30 parts of natural color chemical wood pulp, 30-40 parts of natural color chemical reed pulp, 10-20 parts of PET (polyethylene terephthalate) fiber, 10-20 parts of talcum powder filler, 2-5 parts of wet strength agent, 2-5 parts of softening agent and 2-3 parts of mildew preventive;
mixing slurry in step (2):
pulping 10-30 parts of natural-color chemical wood pulp and 30-40 parts of natural-color chemical reed pulp respectively, then mixing with 10-20 parts of PET fiber pulp, and stirring uniformly;
step (3) sequentially adding 2-5 parts of softening agent, 2-5 parts of wet strength agent and 2-3 parts of mildew preventive into the mixed slurry, and uniformly mixing and stirring;
step (4) treating the slurry obtained in the step (3) by a pressure screen, adding 10-20 parts of talcum powder filler, mixing, uniformly stirring, making wet paper sheets on a crescent toilet paper machine according to a conventional method, drying by a drying cylinder, and controlling the dryness of the paper sheets to be 93-97%;
and (5) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
Furthermore, the PET fiber is 0.3d-0.5d, and the length is 3-5 mm.
Further, the mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.5-1.
Further, the wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 2-5.
Further, the softening agent is any one of succinate sulfonate and imidazoline quaternary ammonium salt softening agents.
The invention also relates to the environment-friendly toilet paper prepared by the preparation method.
The invention also relates to environment-friendly toilet paper which comprises the following components in parts by mass:
10-30 parts of natural color chemical wood pulp, 30-40 parts of natural color chemical reed pulp, 10-20 parts of PET (polyethylene terephthalate) fiber, 10-20 parts of talcum powder filler, 2-5 parts of wet strength agent, 2-5 parts of softening agent and 2-3 parts of mildew preventive;
the PET fiber is 0.3d-0.5d, and the length is 3-5 mm.
Further, the mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.5-1.
Further, the wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 2-5.
Further, the softening agent is any one of succinate sulfonate and imidazoline quaternary ammonium salt softening agents.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention utilizes PET fiber to replace hardwood chemical pulp, reduces the generation of paper wadding dust in a production workshop, improves the workshop operation environment and reduces the fire hazard.
(2) The invention adopts the natural color chemical pulp to replace the bleaching chemical pulp, thereby reducing the pollution of pulping and lowering the cost.
(3) According to the invention, the talcum powder is added into the toilet paper, so that the use of fiber is reduced, the fine feeling of the surface of the toilet paper is improved, the quality of the toilet paper is improved, and the production cost of the toilet paper is reduced.
(4) The environment-friendly toilet paper is green and nontoxic, and all sanitary performances of the environment-friendly toilet paper accord with related standards.
The production optimization of the novel environment-friendly toilet paper is realized, and the green environment-friendly production, energy conservation and emission reduction of the toilet paper are realized.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available by purchase.
All percentages are expressed as mass fractions unless otherwise indicated. The proportion is mass proportion, and the concentration is mass concentration.
Example 1
The environment-friendly toilet paper comprises the following components in parts by mass:
10 parts of natural-color chemical wood pulp, 30 parts of natural-color chemical reed pulp, 10 parts of PET (polyethylene terephthalate) fiber, 15 parts of talcum powder filler, 2 parts of wet strength agent, 5 parts of softening agent and 2 parts of mildew preventive.
Wherein the PET fiber is 0.3d and the length is 3 mm.
The mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.5.
The wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 2. Wherein the softening agent is succinate sulfonate softening agent.
The production and preparation method of the environment-friendly toilet paper comprises the following steps:
pulping natural color chemical wood pulp and natural color chemical reed pulp respectively according to the mass parts, then mixing the pulp with PET fiber pulp, and uniformly stirring;
step (2) adding a softening agent, a wet strength agent and a mildew inhibitor into the mixed slurry in sequence according to the mass parts, and mixing and stirring uniformly;
step (3) after the prepared pulp is processed by a pressure screen, wherein the pulp inlet concentration is 0.6-1.0%, the pulp inlet pressure is 0.1-0.2MPa, the size of a screen gap is 0.35-0.45mm, talcum powder is added for mixing, the mixture is uniformly stirred, the mixture is conveyed to a head box by a pulp pump, the net surfing concentration is controlled to be about 0.5%, wet paper sheets are made on a crescent sanitary paper machine and dried by a drying cylinder, and the dryness of the paper sheets is controlled to be 93%;
and (4) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
Example 2
The environment-friendly toilet paper comprises the following components in parts by mass:
20 parts of natural-color chemical wood pulp, 35 parts of natural-color chemical reed pulp, 15 parts of PET (polyethylene terephthalate) fiber, 10 parts of talcum powder filler, 4 parts of wet strength agent, 4 parts of softening agent and 3 parts of mildew preventive.
Wherein the PET fiber is 0.3d and the length is 4 mm.
The mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 1.
The wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 5.
Wherein the softening agent is imidazoline quaternary ammonium salt softening agent.
The production and preparation method of the environment-friendly toilet paper comprises the following steps:
pulping natural color chemical wood pulp and natural color chemical reed pulp respectively according to the mass parts, then mixing the pulp with PET fiber pulp, and uniformly stirring;
step (2) adding a softening agent, a wet strength agent and a mildew inhibitor into the mixed slurry in sequence according to the mass parts, and mixing and stirring uniformly;
step (3) the prepared pulp is processed by a pressure screen according to the mode of the embodiment 1, talcum powder is added and mixed and then is stirred uniformly, wet paper sheets are manufactured on a crescent toilet paper machine according to the conventional method in the embodiment 1, and the wet paper sheets are dried and dried by a drying cylinder, and the dryness of the paper sheets is controlled to be 95 percent;
and (4) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
Example 3
The environment-friendly toilet paper comprises the following components in parts by mass:
20 parts of natural-color chemical wood pulp, 40 parts of natural-color chemical reed pulp, 20 parts of PET (polyethylene terephthalate) fiber, 20 parts of talcum powder filler, 3 parts of wet strength agent, 5 parts of softening agent and 3 parts of mildew preventive.
Wherein the PET fiber is 0.5d and the length is 5 mm.
The mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.8.
The wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 4.
Wherein the softening agent is succinate sulfonate softening agent.
The production and preparation method of the environment-friendly toilet paper comprises the following steps:
pulping natural color chemical wood pulp and natural color chemical reed pulp respectively according to the mass parts, then mixing the pulp with PET fiber pulp, and uniformly stirring;
step (2) adding a softening agent, a wet strength agent and a mildew inhibitor into the mixed slurry in sequence according to the mass parts, and mixing and stirring uniformly;
step (3) the prepared pulp is processed by a pressure screen according to the mode of the embodiment 1, talcum powder is added and mixed and then is stirred uniformly, wet paper sheets are manufactured on a crescent toilet paper machine according to the conventional method in the embodiment 1, and the wet paper sheets are dried and dried by a drying cylinder, and the dryness of the paper sheets is controlled to be 95 percent;
and (4) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
Example 4
The environment-friendly toilet paper comprises the following components in parts by mass:
30 parts of natural-color chemical wood pulp, 40 parts of natural-color chemical reed pulp, 20 parts of PET (polyethylene terephthalate) fiber, 20 parts of talcum powder filler, 5 parts of wet strength agent, 4 parts of softening agent and 2 parts of mildew preventive.
Wherein the PET fiber is 0.5d and the length is 5 mm.
The mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 1.
The wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 5.
Wherein the softening agent is imidazoline quaternary ammonium salt softening agent.
The production and preparation method of the environment-friendly toilet paper comprises the following steps:
pulping natural color chemical wood pulp and natural color chemical reed pulp respectively according to the mass parts, then mixing the pulp with PET fiber pulp, and uniformly stirring;
step (2) adding a softening agent, a wet strength agent and a mildew inhibitor into the mixed slurry in sequence according to the mass parts, and mixing and stirring uniformly;
step (3) the prepared pulp is processed by a pressure screen according to the mode of example 1, talcum powder is added and mixed and then is stirred uniformly, wet paper sheets are made on a crescent toilet paper machine according to the conventional method in example 1 and are dried by a drying cylinder, and the dryness of the paper sheets is controlled to be 97%;
and (4) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
Comparative test
Comparative example 1: in example 1, unbleached chemical wood pulp was replaced with bleached chemical pulp.
Comparative example 2: in example 1, PET fibers were replaced with hardwood bleached chemical pulp.
Comparative example 3: in example 1, PET fibers were replaced with hardwood chemical pulp and virgin chemical pulp was replaced with bleached chemical pulp.
Comparative example 4: in example 1, no talc was added.
The indexes of the main products of the environment-friendly toilet paper prepared by the embodiments and the comparative examples of the invention are shown in Table 1:
TABLE 1 index of environmental protection toilet paper product
As can be seen from table 1, the whiteness and tensile index of the toilet paper product are obviously improved under the condition that the single natural-color chemical wood pulp is replaced by the bleached chemical pulp;
under the condition that the single PET fiber is replaced by the broadleaf wood bleached chemical pulp, the whiteness and the tensile index of a toilet paper product are greatly improved, and the transverse imbibition height is improved;
under the condition of replacing hardwood chemical pulp and bleached chemical pulp at the same time, the whiteness, tensile index and transverse imbibition height of the toilet paper product are obviously improved;
without adding talcum powder, the whiteness of the toilet paper product is slightly reduced, and the tensile index is slightly improved. However, too high a tensile index is disadvantageous for toilet paper, and the above index needs to be in a reasonable range on the basis of solving the technical problems of the present invention.
The change of the components of the toilet paper product produces corresponding changes in indexes such as whiteness, tensile index, transverse imbibition height and the like, but the corresponding parameter changes are within the range of qualified products, so the environment-friendly toilet paper produced by the invention of the technology of replacing bleached pulp with unbleached pulp, replacing hardwood pulp with PET, adding talcum powder filler and the like is feasible, the reduction of paper floc dust generated in the production process of the toilet paper is realized, the environment-friendly production is realized, and the production cost of the toilet paper is also reduced.
The use of PET, which is not a conventional choice in the art given the combination of components, replaces hardwood pulp with PET, which is currently not a precedent for the production of toilet paper, and the current knowledge of those skilled in the art is that the addition of synthetic fibers in the production of toilet paper products using synthetic fibers will significantly reduce the strength of the paper, since PET is a synthetic fiber, has few surface hydroxyl groups, and has few hydrogen bonds formed between plant fibers, which will result in a significant reduction in the strength of the paper. Based on the components and the amount, 10-30 parts of natural-color chemical wood pulp, 30-40 parts of natural-color chemical reed pulp and 10-20 parts of PET fibers are added, the reasonable amount range increases hydrogen bonds formed among plant fibers, the strength index is not obviously reduced, the plant fibers can be in a better range, the comfort degree of finished toilet paper products is better, meanwhile, paper wadding dust generated in the production process of the toilet paper is reduced, the hidden danger of dust in a workshop is reduced, and environment-friendly production is realized. On the basis, the toilet paper product is ensured to meet the use requirement of the product.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A preparation method of environment-friendly toilet paper is characterized by comprising the following steps:
preparing materials according to the following components:
10-30 parts of natural color chemical wood pulp, 30-40 parts of natural color chemical reed pulp, 10-20 parts of PET (polyethylene terephthalate) fiber, 10-20 parts of talcum powder filler, 2-5 parts of wet strength agent, 2-5 parts of softening agent and 2-3 parts of mildew preventive;
mixing slurry in step (2):
pulping 10-30 parts of natural-color chemical wood pulp and 30-40 parts of natural-color chemical reed pulp respectively, then mixing with 10-20 parts of PET fiber pulp, and stirring uniformly;
step (3) sequentially adding 2-5 parts of softening agent, 2-5 parts of wet strength agent and 2-3 parts of mildew preventive into the mixed slurry, and uniformly mixing and stirring;
step (4) treating the slurry obtained in the step (3) by a pressure screen, adding 10-20 parts of talcum powder filler, mixing, uniformly stirring, making wet paper sheets on a crescent toilet paper machine according to a conventional method, drying by a drying cylinder, and controlling the dryness of the paper sheets to be 93-97%;
and (5) carrying out scraper wrinkling and coiling on the toilet paper leaves which are dried to obtain the environment-friendly toilet paper.
2. The method of claim 1, wherein the PET fiber has a length of 0.3d to 0.5d and a length of 3 to 5 mm.
3. The preparation method of claim 1, wherein the mildew preventive is a nano silver ion and nano titanium dioxide antibacterial agent compound, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.5-1.
4. The preparation method according to claim 1, characterized in that the wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 2-5.
5. The method according to claim 1, wherein the softener is any one of succinate sulfonate type softeners and imidazoline quaternary ammonium salt softeners.
6. An environmentally friendly toilet paper obtained by the preparation method according to any one of claims 1-5.
7. The environment-friendly toilet paper is characterized by comprising the following components in parts by mass:
10-30 parts of natural color chemical wood pulp, 30-40 parts of natural color chemical reed pulp, 10-20 parts of PET (polyethylene terephthalate) fiber, 10-20 parts of talcum powder filler, 2-5 parts of wet strength agent, 2-5 parts of softening agent and 2-3 parts of mildew preventive;
the PET fiber is 0.3d-0.5d, and the length is 3-5 mm.
8. The environment-friendly toilet paper according to claim 7, wherein the mildew preventive is a compound of a nano silver ion and a nano titanium dioxide antibacterial agent, and the mass ratio of the nano silver ion to the nano titanium dioxide is 1: 0.5-1.
9. The environment-friendly toilet paper according to claim 7, wherein the wet strength agent is a compound of polyamide-polyepichlorohydrin resin and polyvinyl alcohol, and the mass ratio of the polyamide-polyepichlorohydrin resin to the polyvinyl alcohol is 1: 2-5.
10. The environment-friendly toilet paper according to claim 7, wherein the softener is any one of succinate sulfonate type softeners and imidazoline quaternary ammonium salt softeners.
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