CN111996830A - Production process of fiber composite material household paper - Google Patents
Production process of fiber composite material household paper Download PDFInfo
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- CN111996830A CN111996830A CN202010918288.6A CN202010918288A CN111996830A CN 111996830 A CN111996830 A CN 111996830A CN 202010918288 A CN202010918288 A CN 202010918288A CN 111996830 A CN111996830 A CN 111996830A
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- 239000000835 fiber Substances 0.000 title claims abstract description 142
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 49
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 49
- 241001330002 Bambuseae Species 0.000 claims abstract description 49
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 49
- 239000011425 bamboo Substances 0.000 claims abstract description 49
- 241000609240 Ambelania acida Species 0.000 claims abstract description 47
- 239000010905 bagasse Substances 0.000 claims abstract description 47
- 238000002156 mixing Methods 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002002 slurry Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000013329 compounding Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000004132 cross linking Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000011268 mixed slurry Substances 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims description 89
- 238000004537 pulping Methods 0.000 claims description 36
- 239000000654 additive Substances 0.000 claims description 24
- 238000010009 beating Methods 0.000 claims description 23
- 108010059892 Cellulase Proteins 0.000 claims description 22
- 229940106157 cellulase Drugs 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 14
- 230000001954 sterilising effect Effects 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- 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 description 11
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 11
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000004061 bleaching Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000002893 slag Substances 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 5
- 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 description 4
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 4
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention relates to the technical field of household paper, in particular to a production process of fiber composite household paper, which can enhance the toughness of the household paper on the premise of improving the softness of the household paper, reduce the situations that the household paper is easy to damage and rot, and drop dregs and scraps after meeting water, improve the practicability of the household paper and reduce the waste situation; the process comprises the following steps: s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use; s2, pretreating the bagasse pulp; s3, pretreating natural bamboo pulp; s4, pretreating the regenerated fiber pulp; s5, mixing the slurry; s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry; s7, adding auxiliary materials; s8, dewatering and squeezing; s9, drying; and S10, finishing.
Description
Technical Field
The invention relates to the technical field of household paper, in particular to a production process of fiber composite household paper.
Background
As is well known, the household paper refers to various sanitary wiping papers used for caring personal home and going out, and comprises roll toilet paper, removable toilet paper, box-packed facial tissue, pocket facial tissue, paper handkerchief, napkin paper, hand towel, wet tissue, kitchen paper and the like, which are mainly used for daily hygiene of people, are similar to the preparation process of paper, but are required to be manufactured to be extremely thin and fragile, so as to fulfill the aim of being rotten when meeting water, thereby achieving the aim of environmental protection, however, the characteristic causes the conditions that the household paper is extremely easy to be damaged and rotten and the slag and scraps to occur in the using process, if the household paper is easy to be damaged, the practicability is easy to be poor, and the requirement of pursuing the softness of the household paper is more and more along with the improvement of the life quality of people is realized by adding a softener in the paper, however, the addition of the softener causes the toughness of the household paper to be poor, and further causes the waste of the household paper during use.
Disclosure of Invention
In order to solve the technical problems, the invention provides a production process of the fiber composite household paper, which can enhance the toughness of the household paper on the premise of improving the softness of the household paper, reduce the situations that the household paper is easy to damage and rot, drop slag and fall scraps after meeting water, improve the practicability of the household paper and reduce the waste situation.
The invention relates to a production process of fiber composite material household paper, which comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by adopting the filtered pulp without fibers, and simultaneously adding cellulase into the pulp to continuously grind the pulp;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without the fibers, simultaneously adding cellulase into the pulp, and continuously grinding the pulp;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the bleached and purified regenerated fiber pulp, and sterilizing and purifying the bleached and purified regenerated fiber pulp;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
Specifically, the household paper is produced by the following materials in parts by weight:
62-78 parts of bagasse pulp;
44-60 parts of natural bamboo pulp;
22-30 parts of regenerated fiber pulp;
5-7 parts of cellulase;
4-6 parts of sodium carboxymethylcellulose;
10-15 parts of PP;
12-18 parts of PE.
Specifically, when the bagasse pulp is pretreated, the grinding temperature is controlled to be 45 +/-2 ℃, the grinding, beating and beating degree is 28-31 DEG SR, and the pulp concentration is 7-10%.
Specifically, when natural bamboo pulp is pretreated, the grinding temperature is controlled to be 43 +/-2 ℃, the grinding, beating and beating degree is 30-33 DEG SR, and the pulp concentration is 6-8%.
Specifically, when the regenerated fiber pulp is pretreated, the grinding temperature is controlled to be 39 +/-2 ℃, the grinding beating degree is 27-29 DEG SR, and the pulp concentration is 5-8%.
Specifically, the addition amount of the natural bamboo pulp is 2 times of that of the regenerated fiber pulp.
Specifically, the additive is any one or more of a dispersing agent, a softener, a dry strength auxiliary agent and a moisturizing agent.
Specifically, the additive is added in an amount of 0.5-1.2% of the composite slurry.
Compared with the prior art, the invention has the beneficial effects that: the process of the invention is adopted to produce the household paper, the production is carried out by taking the bagasse pulp, the natural bamboo pulp and the regenerated fiber pulp as raw materials, about 50 percent of the raw materials are recycled as wastes, not only waste resources are well utilized, but also partial cost is saved, the waste of resources is reduced, the raw materials are fully pulped and ground, the fiber substances in the raw materials can be fully dispersed, and the cellulase is added to act on cellulose cells, so that the water absorption performance and the flexibility of finished products can be effectively improved, the toughness of the finished product paper can be effectively improved by adding the sodium hydroxymethyl cellulose, the toughness is greatly improved when the finished product paper is used in a dry mode or a wet mode, and the cellulose in the pulp can be cross-linked and compounded through PP and PE, so that the toughness of the finished product paper can be further improved, and the flexibility of the household paper can be improved, the toughness of the household paper is enhanced, the conditions that the household paper is easy to damage and fall, the slag and the scraps are reduced after meeting water are reduced, the practicability of the household paper is improved, and the waste condition is reduced.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
The fiber composite material household paper is produced by the following materials in parts by weight:
78 parts of bagasse pulp;
44 parts of natural bamboo pulp;
22 parts of regenerated fiber pulp;
5 parts of cellulase;
6 parts of sodium hydroxymethyl cellulose;
10 parts of PP;
12 parts of PE.
A production process of fiber composite household paper comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by using the filtered pulp without fibers, adding cellulase into the pulp, continuously grinding the pulp, controlling the grinding temperature to be 45 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 28 DEG SR and the pulp concentration to be 7%;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the pulp, controlling the grinding temperature to be 43 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 30 DEG SR and the pulp concentration to be 6.5%;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the regenerated fiber pulp, and sterilizing and purifying the regenerated fiber pulp, wherein the grinding temperature is controlled to be 39 +/-2 ℃, the grinding, pulping and beating degree is 27 DEG SR, and the concentration of the pulp is 8%;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing, wherein the additives are a composition of a dispersing agent, a dry strength additive and a wetting enhancer, the adding ratio is 1:1:1, and the adding amount of the additives is 1.1% of the compound slurry;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
The performance of the existing common household paper is detected, and the paper has the advantages of being 255mN in softness, 2.8m/s in dry strength, 2.9m/s in wet strength, poor in toughness, good in water absorption, easy to fall scraps and slag during use and short in service life;
the household paper prepared by the embodiment is used for detecting various performances, the softness is 302mN, the dry strength is 3.3m/s, the wet strength is 3.6m/s, the toughness is good, the water absorption is good, the phenomena of chip falling and slag falling are not easy to occur during use, and the service life is long.
Example 2
The fiber composite material household paper is produced by the following materials in parts by weight:
62 parts of bagasse pulp;
60 parts of natural bamboo pulp;
30 parts of regenerated fiber pulp;
7 parts of cellulase;
4 parts of sodium hydroxymethyl cellulose;
15 parts of PP;
and 18 parts of PE.
A production process of fiber composite household paper comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by using the filtered pulp without fibers, adding cellulase into the pulp, continuously grinding the pulp, controlling the grinding temperature to be 45 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 29 DEG SR and the pulp concentration to be 10%;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the pulp, controlling the grinding temperature to be 43 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 31 DEG SR and the pulp concentration to be 7.5%;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the regenerated fiber pulp, and sterilizing and purifying the regenerated fiber pulp, wherein the grinding temperature is controlled to be 39 +/-2 ℃, the grinding, pulping and beating degree is 29 DEG SR, and the concentration of the pulp is 6.5%;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing, wherein the additives are a composition of a dispersing agent, a softener and a dry strength auxiliary agent, the adding proportion is 1:1:1, and the adding amount of the additives is 1.0 percent of that of the compound slurry;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
The performance of the existing common household paper is detected, and the paper has the advantages of being 255mN in softness, 2.8m/s in dry strength, 2.9m/s in wet strength, poor in toughness, good in water absorption, easy to fall scraps and slag during use and short in service life;
the household paper prepared by the embodiment is used for detecting various performances, the softness is 306mN, the dry strength is 3.4m/s, the wet strength is 3.8m/s, the toughness is good, the water absorption is good, the phenomena of chip falling and slag falling are not easy to occur during use, and the service life is long.
Example 3
The fiber composite material household paper is produced by the following materials in parts by weight:
68 parts of bagasse pulp;
50 parts of natural bamboo pulp;
25 parts of regenerated fiber pulp;
6 parts of cellulase;
5 parts of sodium carboxymethyl cellulose;
12 parts of PP;
and 16 parts of PE.
A production process of fiber composite household paper comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by using the filtered pulp without fibers, adding cellulase into the pulp, continuously grinding the pulp, controlling the grinding temperature to be 45 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 31 DEG SR and the pulp concentration to be 9%;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the pulp, controlling the grinding temperature to be 43 +/-2 ℃, and controlling the grinding pulping beating degree to be 33 DEG SR and the pulp concentration to be 6%;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the regenerated fiber pulp, and sterilizing and purifying the regenerated fiber pulp, wherein the grinding temperature is controlled to be 39 +/-2 ℃, the grinding, pulping and beating degree is 27 DEG SR, and the pulp concentration is 7%;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing, wherein the additives are a composition of a dispersing agent and a humidifying agent, the adding ratio is 1:1, and the adding amount of the additives is 0.8 percent of the compound slurry;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
The performance of the existing common household paper is detected, and the paper has the advantages of being 255mN in softness, 2.8m/s in dry strength, 2.9m/s in wet strength, poor in toughness, good in water absorption, easy to fall scraps and slag during use and short in service life;
the household paper prepared by the embodiment is used for detecting various performances, the softness is 312mN, the dry strength is 3.2m/s, the wet strength is 3.5m/s, the toughness is good, the water absorption is good, the phenomena of chip falling and slag falling are not easy to occur during use, and the service life is long.
Example 4
The fiber composite material household paper is produced by the following materials in parts by weight:
70 parts of bagasse pulp;
54 parts of natural bamboo pulp;
27 parts of regenerated fiber pulp;
5.5 parts of cellulase;
5.5 parts of sodium carboxymethyl cellulose;
13 parts of PP;
and 15 parts of PE.
A production process of fiber composite household paper comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by using the filtered pulp without fibers, adding cellulase into the pulp, continuously grinding the pulp, controlling the grinding temperature to be 45 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 30 DEG SR and the pulp concentration to be 8%;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the pulp, controlling the grinding temperature to be 43 +/-2 ℃, and controlling the grinding pulping beating degree to be 32 DEG SR and the pulp concentration to be 8%;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the regenerated fiber pulp, and sterilizing and purifying the regenerated fiber pulp, wherein the grinding temperature is controlled to be 39 +/-2 ℃, the grinding, pulping and beating degree is 28 DEG SR, and the pulp concentration is 6%;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing, wherein the additives are a composition of a dispersing agent, a softener, a dry strength additive and a wet strength additive, the adding ratio is 1:1:1:1, and the adding amount of the additives is 1.2% of the compound slurry;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
The performance of the existing common household paper is detected, and the paper has the advantages of being 255mN in softness, 2.8m/s in dry strength, 2.9m/s in wet strength, poor in toughness, good in water absorption, easy to fall scraps and slag during use and short in service life;
the household paper prepared by the embodiment is used for detecting various performances, the softness is 300mN, the dry strength is 3.4m/s, the wet strength is 3.6m/s, the toughness is good, the water absorption is good, the phenomena of chip falling and slag falling are not easy to occur during use, and the service life is long.
Example 5
The fiber composite material household paper is produced by the following materials in parts by weight:
75 parts of bagasse pulp;
48 parts of natural bamboo pulp;
24 parts of regenerated fiber pulp;
6.5 parts of cellulase;
6 parts of sodium hydroxymethyl cellulose;
14 parts of PP;
and 17 parts of PE.
A production process of fiber composite household paper comprises the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the fibers, controlling the grinding temperature to be 45 +/-2 ℃, and controlling the grinding, pulping and beating degree to be 31 DEG SR and the pulp concentration to be 8.5%;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without fibers, simultaneously adding cellulase, continuously grinding the pulp, controlling the grinding temperature to be 43 +/-2 ℃, and controlling the grinding pulping beating degree to be 30 DEG SR and the pulp concentration to be 7%;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the regenerated fiber pulp, and sterilizing and purifying the regenerated fiber pulp, wherein the grinding temperature is controlled to be 39 +/-2 ℃, the grinding, pulping and beating degree is 29 DEG SR, and the concentration of the pulp is 5%;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing, wherein the additives are dispersing agents, and the addition amount of the additives is 0.5 percent of that of the compound slurry;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
The performance of the existing common household paper is detected, and the paper has the advantages of being 255mN in softness, 2.8m/s in dry strength, 2.9m/s in wet strength, poor in toughness, good in water absorption, easy to fall scraps and slag during use and short in service life;
the household paper prepared by the embodiment is adopted to detect various performances, the softness is 321mN, the dry strength is 3.5m/s, the wet strength is 3.9m/s, the toughness is good, the water absorption is good, the phenomena of chip falling and slag falling are not easy to occur during use, and the service life is long.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The production process of the fiber composite household paper is characterized by comprising the following steps:
s1, selecting raw materials: the method comprises the following steps of selecting bagasse pulp and natural bamboo pulp as main raw materials, and taking regenerated fiber pulp as an auxiliary material for producing paper for daily use;
s2, pretreating bagasse pulp: pulping and grinding the bagasse pulp, filtering while grinding, repeatedly washing fibers in the bagasse pulp by adopting the filtered pulp without fibers, and simultaneously adding cellulase into the pulp to continuously grind the pulp;
s3, natural bamboo pulp pretreatment: pulping and grinding the natural bamboo pulp, filtering while grinding, repeatedly washing the fibers in the natural bamboo pulp by adopting the filtered pulp without the fibers, simultaneously adding cellulase into the pulp, and continuously grinding the pulp;
s4, pretreatment of the regenerated fiber pulp: bleaching the screened and purified regenerated fiber pulp, pulping and grinding the bleached and purified regenerated fiber pulp, and sterilizing and purifying the bleached and purified regenerated fiber pulp;
s5, mixing the slurry: filtering the pretreated bagasse pulp, natural bamboo pulp and regenerated fiber pulp to remove 50% of water, mixing according to a proportion, adding sodium carboxymethylcellulose into the mixture after uniformly mixing, and fully contacting and mixing;
s6, fiber compounding: adding the PP and PE fibers into the mixed slurry, keeping the mixing temperature at 40 +/-1 ℃, and crosslinking and compounding the PP and PE fibers with the fibers in the slurry;
s7, adding auxiliary materials: adding required additives into the compounded slurry, and uniformly mixing;
s8, dewatering and pressing: leading out the crosslinked and compounded pulp, enabling the pulp to flow out of a circulating copper wire mesh or a circulating plastic mesh to be uniformly distributed and straightened, leading the pulp between rolling wheels attached with coarse cotton cloth, dehydrating until the pulp is compact, and increasing the strength of paper;
s9, drying: the squeezed wet paper passes through a plurality of cylinders internally filled with hot steam, so that the water on the surface of the paper is continuously evaporated, and the water content in the paper is reduced;
s10, after finishing: and (3) performing irradiation sterilization treatment on the dried paper, and then cutting, punching, rolling and packaging to obtain a finished product of the household paper.
2. The production process of the fiber composite material household paper as claimed in claim 1, wherein the household paper is produced by the following materials in parts by weight:
62-78 parts of bagasse pulp;
44-60 parts of natural bamboo pulp;
22-30 parts of regenerated fiber pulp;
5-7 parts of cellulase;
4-6 parts of sodium carboxymethylcellulose;
10-15 parts of PP;
12-18 parts of PE.
3. The production process of the fiber composite household paper as claimed in claim 1, wherein the grinding temperature is controlled at 45 ± 2 ℃, the grinding beating degree is 28-31 ° SR, and the pulp concentration is 7-10% when the bagasse pulp is pretreated.
4. The production process of the fiber composite household paper as claimed in claim 1, wherein the grinding temperature is controlled at 43 ± 2 ℃, the grinding beating degree is 30-33 ° SR, and the pulp concentration is 6-8% when the natural bamboo pulp is pretreated.
5. The production process of the fiber composite household paper as claimed in claim 1, wherein the grinding temperature is controlled at 39 ± 2 ℃, the grinding beating degree is 27-29 ° SR, and the pulp concentration is 5-8% when the regenerated fiber pulp is pretreated.
6. The process for producing fiber composite household paper according to claim 1, wherein the addition amount of the natural bamboo pulp is 2 times of that of the regenerated fiber pulp.
7. The process for producing a fiber composite household paper according to claim 1, wherein the additive is any one or more of a dispersant, a softener, a dry strength aid and a wet strength agent.
8. The production process of the fiber composite household paper as claimed in claim 1, wherein the additive is added in an amount of 0.5-1.2% of the composite pulp.
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