CN107177996A - A kind of preprocess method of bleached pulp - Google Patents
A kind of preprocess method of bleached pulp Download PDFInfo
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- CN107177996A CN107177996A CN201710448887.4A CN201710448887A CN107177996A CN 107177996 A CN107177996 A CN 107177996A CN 201710448887 A CN201710448887 A CN 201710448887A CN 107177996 A CN107177996 A CN 107177996A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/001—Heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/003—Treating of wood not provided for in groups B27K1/00, B27K3/00 by using electromagnetic radiation or mechanical waves
- B27K5/0065—Ultrasonic treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K2200/00—Wooden materials to be treated
- B27K2200/15—Pretreated particles or fibres
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a kind of preprocess method of bleached pulp, comprise the following steps：S1：Sinocalamus latiflorus is cut into sinocalamus latiflorus piece and crushed, gained crushed material is delivered in once pretreatment immersion liquid A, described once to pre-process immersion liquid A, including following raw material：APES, triethanolamine, sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, laurate, water, 26 40min of immersion are carried out under ul-trasonic irradiation, are then filtered, and obtain leaching material A；S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the secondary pretreatment immersion liquid B includes following raw material：Percarbamide, potassium hydroxide, 1,3 diketone, vanadic anhydride, water carry out boiling in the case where temperature is 142 160 DEG C, then filtered, and obtain leaching material B, complete preprocessing process.It is higher using the brightness of the toilet paper of gained bleached pulp subsequent production, tensile index, pliability after present invention pretreatment, and do not have any stimulation or adverse reaction to human body skin.
Description
【Technical field】
The invention belongs to pulp technology for making paper, and in particular to a kind of preprocess method of bleached pulp.
【Background technology】
The production method of current paper pulp mainly includes the production stream such as chemical method, semichemical method, Mechanical Method and chemical mechanical pulping
Journey.Wherein chemical pulping is occupied an leading position among current numerous pulping process.Claim by paper pulp made from chemical method boiling
For true qualities paper pulp, true qualities paper pulp is relatively low due to whiteness, limits its application, true qualities paper pulp will could typically give birth to after bleaching
Produce the paper kind of higher level.
Paper for daily use, particularly toilet paper are a kind of conventional daily consumption articles, still, in psychologically to whiteness
Need and to the demand of some physical indexs, generally use the pulp manufacture based on bleached wood pulp.Even if being starched using herb
Prepare toilet paper, also all use bleached pulp, but gained paper pulp yield and whiteness are still relatively low, the brightness of toilet paper, tensile index,
Pliability is not also high.
With the continuous expansion of paper industry, constantly opening up for pulp applications is wide, originally as the wood of main paper making raw material
Gradually supply falls short of demand for material, causes forest excessively to be cut down, influence ecological environment, therefore, it is necessary to seek new raw material substituent.
Sinocalamus latiflorus (Dendrocalamus latiflorus Munro) is that south China cultivates one of most wide bamboo kind, is standing grain
Undergraduate course (Poaceae) Bambusoideae (Bambusoideae) Dendrocalamus (Dendrocalamus) large-scale sympodial bamboo kind, is distributed mainly on
The provinces and regions such as Fujian, Taiwan, Guangdong and Guangxi Provinces, Yunnan, Hainan, Sichuan, the Guizhou middle and south, for edible, timber-used, Ye Yong, water and soil conservation, greening
The multipurpose bamboo kind such as view and admire, to produce bamboo shoot or do based on pulpwood.Sinocalamus latiflorus growth is fast, bamboo shoot phase length, yield are high, bamboo shoot are of fine quality good, sinocalamus latiflorus
Fast growing, it is widely used, once transplant and utilize for many years, be that a kind of high, the profitable on ecology excellent calculation material of economic value is dual-purpose
Bamboo kind, economic benefit, ecological benefits and social benefit Three benefits are notable.
Therefore be conducive to avoiding result in forest and excessively cut down as substitution wood raw material using artificial growth sinocalamus latiflorus, influence
Ecological environment.
【The content of the invention】
A kind of preprocess method for bleached pulp that the present invention is provided, to solve how to improve sinocalamus latiflorus paper pulp yield and whiteness,
The problem of improving production toilet paper quality.
To solve above technical problem, the present invention uses following technical matters：
A kind of preprocess method of bleached pulp, comprises the following steps：
S1：Sinocalamus latiflorus is cut into sinocalamus latiflorus piece and crushed, gained crushed material is delivered in once pretreatment immersion liquid A, described
Once pretreatment immersion liquid A is in units of parts by weight, including following raw material：6-10 parts of APES, triethanolamine
0.4-0.8 parts, 0.6-1.2 parts of sodium alkyl benzene sulfonate, 0.5-1 parts of lignin sulfonic acid potassium, 0.7-1.4 parts of laurate, water 45-95
Part, immersion 26-40min is carried out under ul-trasonic irradiation, is then filtered, leaching material A is obtained；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the immersion liquid B is using parts by weight to be single
Position, including following raw material：12-25 parts of percarbamide, 3-5 parts of potassium hydroxide, 0.4-0.6 parts of 1,3- diketone, vanadic anhydride
0.1-0.2 parts, 40-156 parts of water, carry out boiling in the case where temperature is 142-160 DEG C, then filter, and obtain leaching material B, complete preparation
The preprocessing process of bleached pulp.
Further, the size of sinocalamus latiflorus piece described in step S1 is 20-30 × 2.8-3.7mm × 1.2-2.5mm.
Further, sinocalamus latiflorus crushed material weight described in step S1 and once the ratio between pretreatment immersion liquid A volumes are 1:1.5-
3.5。
Further, it is 1 to state sinocalamus latiflorus crushed material weight with once the ratio between pretreatment immersion liquid A volumes:2.5.
Further, immersion liquid A described in step S1 is in units of parts by weight, including following raw material：Alkylphenol-polyethenoxy
8 parts of ether, 0.6 part of triethanolamine, 0.9 part of sodium alkyl benzene sulfonate, 0.8 part of lignin sulfonic acid potassium, 1 part of laurate, 70 parts of water.
Further, ultrasonic power described in step S1 is 30-50W, and temperature is 43-48 DEG C.
Further, leaching material A weight described in step S2 and secondary the ratio between the immersion liquid B volumes that pre-process are 1:5.6-12.3.
Further, the leaching material A weight and secondary the ratio between the immersion liquid B volumes that pre-process are 1:9.2.
Further, immersion liquid B described in step S2 is in units of parts by weight, including following raw material：25 parts of percarbamide, hydrogen
5 parts of potassium oxide, 0.6 part of 1,3- diketone, 0.2 part of vanadic anhydride, 156 parts of water.
Further, the time of boiling described in step S2 is 1.5-2h.
The invention has the advantages that：
(1) percarbamide, 1,3- diketone, the addition of vanadic anhydride serve synergy, improve paper pulp yield
And whiteness；
(2) APES, triethanolamine, sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, lauric addition rise
Synergy has been arrived, paper pulp yield and whiteness is improved；
(3) brightness of the toilet paper of gained bleached pulp subsequent production, tensile index, pliability after present invention pretreatment are utilized
It is higher, and do not have any stimulation or adverse reaction to human body skin.
【Embodiment】
For ease of more fully understanding the present invention, it is illustrated by following examples, these embodiments belong to the present invention's
Protection domain, but do not limit the scope of the invention.
In embodiment, the preparation method of the toilet paper prepared using bleaching process is comprised the following steps：
S1：Sinocalamus latiflorus is cut into size for 20-30 × 2.8-3.7mm × 1.2-2.5mm sinocalamus latiflorus piece and crushed, gained
Crushed material is delivered in once pretreatment immersion liquid A, and the sinocalamus latiflorus crushed material weight is 1 with once the ratio between pretreatment immersion liquid A volumes:
1.5-3.5, the once pretreatment immersion liquid A is in units of parts by weight, including following raw material：APES 6-10
Part, 0.4-0.8 parts of triethanolamine, 0.6-1.2 parts of sodium alkyl benzene sulfonate, 0.5-1 parts of lignin sulfonic acid potassium, laurate 0.7-1.4
Part, 45-95 parts of water, are 30-50W in ultrasonic power, temperature is progress immersion 26-40min at 43-48 DEG C, then filters, obtains
Material A must be soaked；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the leaching material A weight and secondary pre- place
It is 1 to manage the ratio between immersion liquid B volumes:5.6-12.3, the secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：Cross
12-25 parts of phosphoamide, 3-5 parts of potassium hydroxide, 0.4-0.6 parts of 1,3- diketone, 0.1-0.2 parts of vanadic anhydride, 40-156 parts of water,
Boiling 1.5-2h is carried out in the case where temperature is 142-160 DEG C, is then filtered, leaching material B is obtained, completion prepares the pretreated of bleached pulp
Journey；
S3：Leaching material B made from step S2 is washed with 60-80 DEG C of hot water, then screens, bleach, bleaching is made
Slurry；
S4：Bleached pulp made from step S3 is subjected to defibrination again, screened stock is made；
S5：Screened stock made from step S4 is subjected to decontamination degassing, is then put into head box and is squeezed after screening the pulp, then connect
Drying, press polish, batch, finished product sinocalamus latiflorus body paper；
S6：Finished product sinocalamus latiflorus body paper made from step S5 is subjected to rewinding, cuts, pack, finished product toilet paper.
Embodiment 1
A kind of preparation method of toilet paper prepared by utilization bleaching process, comprises the following steps：
S1：Sinocalamus latiflorus is cut into size for 22 × 3.2mm × 1.3mm sinocalamus latiflorus piece and crushed, the conveying of gained crushed material
Into once pretreatment immersion liquid A, the sinocalamus latiflorus crushed material weight is 1 with once the ratio between pretreatment immersion liquid A volumes:1.6, described one
Secondary pretreatment immersion liquid A is in units of parts by weight, including following raw material：6 parts of APES, 0.4 part of triethanolamine, alkane
0.6 part of base benzene sulfonic acid sodium salt, 0.5 part of lignin sulfonic acid potassium, 0.7 part of laurate, 45 parts of water, are 30W in ultrasonic power, temperature is
Immersion 40min is carried out at 43 DEG C, is then filtered, leaching material A is obtained；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the leaching material A weight and secondary pre- place
It is 1 to manage the ratio between immersion liquid B volumes:5.6, the secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：Cross phosphinylidyne
12 parts of amine, 3 parts of potassium hydroxide, 0.46 part of 1,3- diketone, 0.1 part of vanadic anhydride, 40 parts of water, are carried out in the case where temperature is 142 DEG C
Boiling 2h, is then filtered, and obtains leaching material B, and completion prepares the preprocessing process of bleached pulp；
S3：Leaching material B made from step S2 is washed with 70 DEG C of hot water, then screens, bleach, bleached pulp is made；
S4：Bleached pulp made from step S3 is subjected to defibrination again, screened stock is made；
S5：Screened stock made from step S4 is subjected to decontamination degassing, is then put into head box and is squeezed after screening the pulp, then connect
Drying, press polish, batch, finished product sinocalamus latiflorus body paper；
S6：Finished product sinocalamus latiflorus body paper made from step S5 is subjected to rewinding, cuts, pack, finished product toilet paper.
Embodiment 2
A kind of preparation method of toilet paper prepared by utilization bleaching process, comprises the following steps：
S1：Sinocalamus latiflorus is cut into size for 29 × 3.6mm × 2.4mm sinocalamus latiflorus piece and crushed, the conveying of gained crushed material
Into once pretreatment immersion liquid A, the sinocalamus latiflorus crushed material weight is 1 with once the ratio between pretreatment immersion liquid A volumes:3.4, described one
Secondary pretreatment immersion liquid A is in units of parts by weight, including following raw material：10 parts of APES, 0.8 part of triethanolamine,
1.2 parts of sodium alkyl benzene sulfonate, 1 part of lignin sulfonic acid potassium, 1.4 parts of laurate, 95 parts of water, are 50W in ultrasonic power, temperature is
Immersion 26min is carried out at 48 DEG C, is then filtered, leaching material A is obtained；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the leaching material A weight and secondary pre- place
It is 1 to manage the ratio between immersion liquid B volumes:12.3, the secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：Cross phosphinylidyne
25 parts of amine, 5 parts of potassium hydroxide, 0.6 part of 1,3- diketone, 0.2 part of vanadic anhydride, 156 parts of water, are carried out in the case where temperature is 160 DEG C
Boiling 1.5h, is then filtered, and obtains leaching material B, and completion prepares the preprocessing process of bleached pulp；
S3：Leaching material B made from step S2 is washed with 60 DEG C of hot water, then screens, bleach, bleached pulp is made；
S4：Bleached pulp made from step S3 is subjected to defibrination again, screened stock is made；
S5：Screened stock made from step S4 is subjected to decontamination degassing, is then put into head box and is squeezed after screening the pulp, then connect
Drying, press polish, batch, finished product sinocalamus latiflorus body paper；
S6：Finished product sinocalamus latiflorus body paper made from step S5 is subjected to rewinding, cuts, pack, finished product toilet paper.
Embodiment 3
A kind of preparation method of toilet paper prepared by utilization bleaching process, comprises the following steps：
S1：Sinocalamus latiflorus is cut into size for 26 × 6.2mm × 1.8mm sinocalamus latiflorus piece and crushed, the conveying of gained crushed material
Into once pretreatment immersion liquid A, the sinocalamus latiflorus crushed material weight is 1 with once the ratio between pretreatment immersion liquid A volumes:2.5, described one
Secondary pretreatment immersion liquid A is in units of parts by weight, including following raw material：8 parts of APES, 0.6 part of triethanolamine, alkane
0.9 part of base benzene sulfonic acid sodium salt, 0.8 part of lignin sulfonic acid potassium, 1 part of laurate, 70 parts of water, are 40W in ultrasonic power, temperature is 46
Immersion 33min is carried out at DEG C, is then filtered, leaching material A is obtained；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the leaching material A weight and secondary pre- place
It is 1 to manage the ratio between immersion liquid B volumes:9.2, the secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：Cross phosphinylidyne
18 parts of amine, 4 parts of potassium hydroxide, 0.5 part of 1,3- diketone, 0.15 part of vanadic anhydride, 100 parts of water, are carried out in the case where temperature is 151 DEG C
Boiling 1.8h, is then filtered, and obtains leaching material B, and completion prepares the preprocessing process of bleached pulp；
S3：Leaching material B made from step S2 is washed with 80 DEG C of hot water, then screens, bleach, bleached pulp is made；
S4：Bleached pulp made from step S3 is subjected to defibrination again, screened stock is made；
S5：Screened stock made from step S4 is subjected to decontamination degassing, is then put into head box and is squeezed after screening the pulp, then connect
Drying, press polish, batch, finished product sinocalamus latiflorus body paper；
S6：Finished product sinocalamus latiflorus body paper made from step S5 is subjected to rewinding, cuts, pack, finished product toilet paper.
Comparative example 1
Sinocalamus latiflorus is cut into after the crushing of sinocalamus latiflorus piece, soaked without once pretreatment immersion liquid A, but be fed directly to secondary pre-
Immersion liquid B immersions are handled, other preparation technologies are identical with the preparation technology of embodiment 3.
Comparative example 2
The secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：4 parts of potassium hydroxide, 1,3- diketone
0.5 part, 0.15 part of vanadic anhydride, 100 parts of water, other preparation technologies are identical with the preparation technology of comparative example 1.
Comparative example 3
The secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：18 parts of percarbamide, potassium hydroxide 4
Part, 0.15 part of vanadic anhydride, 100 parts of water, other preparation technologies are identical with the preparation technology of comparative example 1.
Comparative example 4
The secondary pretreatment immersion liquid B is in units of parts by weight, including following raw material：18 parts of percarbamide, potassium hydroxide 4
Part, 0.5 part of 1,3- diketone, 100 parts of water, other preparation technologies are identical with the preparation technology of comparative example 1.
Comparative example 5
Sinocalamus latiflorus is cut into after the crushing of sinocalamus latiflorus piece, only by once pretreatment immersion liquid A immersions, and soaked without secondary pre-process
Liquid B soaks, and the preparation technology of other preparation technologies and embodiment 3 are essentially identical.
Comparative example 6
The once pretreatment immersion liquid A is in units of parts by weight, including following raw material：8 parts of APES, three
0.6 part of monoethanolamine, 70 parts of water, other preparation technologies are identical with the preparation technology of comparative example 5.
Comparative example 7
The once pretreatment immersion liquid A is in units of parts by weight, including following raw material：It is 0.9 part of sodium alkyl benzene sulfonate, wooden
Plain 0.8 part of potassium sulfonate, 1 part of laurate, 70 parts of water, other preparation technologies are identical with the preparation technology of comparative example 5.
Bleached pulp is prepared using embodiment 1-3 and comparative example 1-7 pretreating process, paper pulp yield is detected respectively and white
Degree, it is as a result as shown in the table.
| Experimental project | Paper pulp yield, % | Whiteness, %ISO |
| Embodiment 1 | 63.04 | 56.71 |
| Embodiment 2 | 64.47 | 57.42 |
| Embodiment 3 | 66.23 | 59.35 |
| Comparative example 1 | 58.25 | 52.74 |
| Comparative example 2 | 54.78 | 50.31 |
| Comparative example 3 | 57.21 | 51.95 |
| Comparative example 4 | 56.06 | 51.12 |
| Comparative example 5 | 51.31 | 47.15 |
| Comparative example 6 | 47.01 | 43.26 |
| Comparative example 7 | 48.52 | 43.91 |
Percarbamide, 1,3- diketone, vanadic anhydride are not added with from comparative example 1-4, in secondary pretreatment immersion liquid B can
Paper pulp yield and whiteness are reduced, this is due to that percarbamide can slowly release hydrogen peroxide, the hydrogen peroxide discharged and wood
Element reaction, is conducive to improving paper pulp yield and whiteness；1,3- diketone can play chelation；Vanadic anhydride plays the work of catalysis
With；Percarbamide, 1,3- diketone, vanadic anhydride add knowable to example 3 and comparative example 1-4 paper pulp yield and whiteness simultaneously
Plus synergy is served, improve paper pulp yield and whiteness.
From comparative example 5-7, once pre-process in immersion liquid A and be not added with APES, triethanolamine, alkylbenzene
Sodium sulfonate, lignin sulfonic acid potassium, laurate can reduce paper pulp yield and whiteness, and this is due to APES, three
Monoethanolamine is wetting agent, serves good humidification；Sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, laurate play sinocalamus latiflorus
Crushed material surface-active action；Alkylphenol-polyethenoxy is understood by example 3 and comparative example 5-7 paper pulp yield and whiteness simultaneously
Ether, triethanolamine, sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, lauric addition serve synergy, improve paper pulp
Yield and whiteness.
Finished product toilet paper is prepared using embodiment 1-3 and comparative example the 1-7 bleached pulp being prepared into, respectively detect brightness,
Tensile index, pliability, it is as a result as shown in the table.
| Experimental project | Brightness | Tensile index, Nm/g | Pliability, mN |
| Embodiment 1 | 80.4 | 11.34 | 186.50 |
| Embodiment 2 | 81.5 | 11.81 | 190.29 |
| Embodiment 3 | 83.6 | 12.10 | 192.49 |
| Comparative example 1 | 76.8 | 10.08 | 181.48 |
| Comparative example 2 | 75.4 | 9.40 | 176.72 |
| Comparative example 3 | 76.7 | 9.73 | 179.59 |
| Comparative example 4 | 75.8 | 9.46 | 178.71 |
| Comparative example 5 | 74.6 | 9.25 | 174.26 |
| Comparative example 6 | 69.5 | 8.91 | 170.48 |
| Comparative example 7 | 71.9 | 9.05 | 171.43 |
Percarbamide, 1,3- diketone, vanadic anhydride are not added with from comparative example 1-4, in secondary pretreatment immersion liquid B can
The brightness of reduction toilet paper, tensile index, pliability, this is due to that percarbamide can slowly release hydrogen peroxide, is discharged
Hydrogen peroxide and lignin reaction；1,3- diketone can play chelation；Vanadic anhydride plays a part of catalysis；Simultaneously by reality
The brightness of example 3 and comparative example 1-4 life paper, tensile index, pliability understand percarbamide, 1,3- diketone, vanadic anhydride
Addition serves synergy, improves the brightness of toilet paper, tensile index, pliability.
From comparative example 5-7, once pre-process in immersion liquid A and be not added with APES, triethanolamine, alkylbenzene
Sodium sulfonate, lignin sulfonic acid potassium, laurate can reduce the brightness of toilet paper, tensile index, pliability, and this is due to alkyl phenol
APEO, triethanolamine are wetting agent, serve good humidification；Sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, the moon
Cinnamic acid plays sinocalamus latiflorus crushed material surface-active action；Simultaneously by the brightness of example 3 and comparative example 5-7 toilet paper, tensile index,
Pliability understands that APES, triethanolamine, sodium alkyl benzene sulfonate, lignin sulfonic acid potassium, lauric addition rise
Synergy has been arrived, the brightness of toilet paper, tensile index, pliability is improved.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations, for person of an ordinary skill in the technical field, is not departing from
On the premise of present inventive concept, some simple deduction or replace can also be made, the present invention should be all considered as belonging to by being submitted
Claims determine scope of patent protection.
Claims (10)
1. a kind of preprocess method of bleached pulp, it is characterised in that：Comprise the following steps：
S1：Sinocalamus latiflorus is cut into sinocalamus latiflorus piece and crushed, gained crushed material is delivered in once pretreatment immersion liquid A, it is described once
Immersion liquid A is pre-processed in units of parts by weight, including following raw material：6-10 parts of APES, triethanolamine 0.4-0.8
Part, 0.6-1.2 parts of sodium alkyl benzene sulfonate, 0.5-1 parts of lignin sulfonic acid potassium, 0.7-1.4 parts of laurate, 45-95 parts of water, in ultrasound
Ripple effect is lower to carry out immersion 26-40min, then filters, and obtains leaching material A；
S2：Leaching material A made from step S1 is delivered in secondary pretreatment immersion liquid B, the immersion liquid B is in units of parts by weight, bag
Include following raw material：12-25 parts of percarbamide, 3-5 parts of potassium hydroxide, 0.4-0.6 parts of 1,3- diketone, vanadic anhydride 0.1-0.2
Part, 40-156 parts of water, carry out boiling in the case where temperature is 142-160 DEG C, then filter, and obtain leaching material B, and completion prepares bleached pulp
Preprocessing process.
2. the preprocess method of bleached pulp according to claim 1, it is characterised in that：The chi of sinocalamus latiflorus piece described in step S1
Very little is 20-30 × 2.8-3.7mm × 1.2-2.5mm.
3. the preprocess method of bleached pulp according to claim 1, it is characterised in that：Sinocalamus latiflorus crushed material described in step S1
Weight is 1 with once the ratio between pretreatment immersion liquid A volumes:1.5-3.5.
4. the preprocess method of bleached pulp according to claim 3, it is characterised in that：State sinocalamus latiflorus crushed material weight with once
It is 1 to pre-process the ratio between immersion liquid A volumes:2.5.
5. the preprocess method of bleached pulp according to claim 1, it is characterised in that：Immersion liquid A described in step S1 is with weight
Amount part is unit, including following raw material：8 parts of APES, 0.6 part of triethanolamine, 0.9 part of sodium alkyl benzene sulfonate,
0.8 part of lignin sulfonic acid potassium, 1 part of laurate, 70 parts of water.
6. the preprocess method of bleached pulp according to claim 1, it is characterised in that：Ultrasonic power described in step S1
For 30-50W, temperature is 43-48 DEG C.
7. the preprocess method of bleached pulp according to claim 1, it is characterised in that：The A weight of leaching material described in step S2
It is 1 with secondary the ratio between the immersion liquid B volumes that pre-process:5.6-12.3.
8. the preprocess method of bleached pulp according to claim 7, it is characterised in that：It is described leaching material A weight with it is secondary pre-
It is 1 to handle the ratio between immersion liquid B volumes:9.2.
9. the preprocess method of bleached pulp according to claim 1, it is characterised in that：Immersion liquid B described in step S2 is with weight
Amount part is unit, including following raw material：25 parts of percarbamide, 5 parts of potassium hydroxide, 0.6 part of 1,3- diketone, vanadic anhydride 0.2
Part, 156 parts of water.
10. the preprocess method of bleached pulp according to claim 1, it is characterised in that：Boiling described in step S2 when
Between be 1.5-2h.
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| CN107558288A (en) * | 2017-09-30 | 2018-01-09 | 广西金荣纸业有限公司 | One kind utilizes bleaching process production high-strength corrugated paper coagulation liquid and its application |
| CN107587376A (en) * | 2017-09-30 | 2018-01-16 | 广西金荣纸业有限公司 | A kind of high-strength corrugated paper and its production technology |
| CN107604728A (en) * | 2017-09-30 | 2018-01-19 | 广西金荣纸业有限公司 | A kind of preprocess method for producing high-strength corrugated paper |
| CN107604729A (en) * | 2017-09-30 | 2018-01-19 | 广西金荣纸业有限公司 | A kind of preprocess method for producing high-strength corrugated paper bleached pulp |
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| CN107675546A (en) * | 2017-09-30 | 2018-02-09 | 广西金荣纸业有限公司 | A kind of preparation method for preparing high-strength corrugated paper natural color pulp |
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| CN107675547A (en) * | 2017-09-30 | 2018-02-09 | 广西金荣纸业有限公司 | Bleached pulp preparation technology is used in a kind of high-strength corrugated paper production |
| CN107700275A (en) * | 2017-09-30 | 2018-02-16 | 广西金荣纸业有限公司 | A kind of preparation method of high-strength corrugated paper |
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| CN107558288A (en) * | 2017-09-30 | 2018-01-09 | 广西金荣纸业有限公司 | One kind utilizes bleaching process production high-strength corrugated paper coagulation liquid and its application |
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| CN107604760A (en) * | 2017-09-30 | 2018-01-19 | 广西金荣纸业有限公司 | A kind of high-strength corrugated paper produced using bleaching process |
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