CN107190552A - The method for manufacturing paper using wheat straw and bagasse - Google Patents

The method for manufacturing paper using wheat straw and bagasse Download PDF

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Publication number
CN107190552A
CN107190552A CN201710577466.1A CN201710577466A CN107190552A CN 107190552 A CN107190552 A CN 107190552A CN 201710577466 A CN201710577466 A CN 201710577466A CN 107190552 A CN107190552 A CN 107190552A
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Prior art keywords
bagasse
wheat straw
paper
added
cellulase
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CN107190552B (en
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齐永怡
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Golden Phoenix Paper Industry (Xiaogan) Co., Ltd.
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齐永怡
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    • 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
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/18—Pulping cellulose-containing materials with halogens or halogen-generating compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
    • D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
    • D21H17/43—Carboxyl groups or derivatives thereof
    • 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
    • D21H17/66—Salts, e.g. alums
    • 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
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
    • 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

Abstract

The invention discloses a kind of method that utilization wheat straw and bagasse manufacture paper, comprise the following steps：Weigh raw material wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；Add sodium hydroxide and water, 1~3h of boiling, washing；Sodium hypochlorite is added, 3~10min is stirred；Casein and cellulase are added, 20~40min is reacted；45~55 DEG C are warming up to, mashing obtains slurries；Alum and stearine are added, 60~70 DEG C of 30~50min of reaction is warming up to, is well mixed；Above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.Directly non-bleached paper is made using plant fiber material in this, turns waste into wealth, is conducive to environmental protection.

Description

The method for manufacturing paper using wheat straw and bagasse
Technical field
The present invention relates to a kind of method that utilization wheat straw and bagasse manufacture paper, belong to non-wood paper field.
Background technology
With the lifting of paper using amount, the problem of falling trees everywhere is increasingly serious, and the living environment to people causes very big Influence.At present, in paper preparation process, three-stage process oxidation bleaching wood pulp is generally used：
First paragraph chlorination, paper pulp leads to chlorine, and most of residual lignin become into chlorlignin, and by the chlorination of dissolving Lignin washing is removed.
Second segment alkali process, purpose further cleans paper pulp, adjusts paper pulp acid-base value.
Tri-stage bleaching, because oxidation delignification is more more effective than chlorination delignification, is gone with method for oxidation with significantly more efficient Except lignin.
It is harmful to environment and above-mentioned three-stage process uses in bleaching process and arrives bleaching agent sodium hypochlorite, it is unfavorable for environmental protection.
Because China's grass as raw material is more, wood raw material is few, manufactures paper using plant fiber material more and more, its base Present principles are to be come out the fiber separation in plant material with methods such as chemistry, machineries, then are made in the suspension that slurry, water are mixed Fiber is woven into uniform and fine and close paper again.The raw material used include grass family fibrous raw material (bamboo, reed, bagasse, Kaoliang stalk and straw), bast fiber raw material (bark and crudefiber crop) and leaf fibrid raw material (Banana Leaf, sugarcane top).But plant The utilization rate of fibrous raw material is relatively low, and the paper physical character prepared is poor, and glossy degree is relatively low, limits and manufactures paper using it Further development.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of method that utilization wheat straw and bagasse manufacture paper, fully Using string, the obtained glossy degree of paper and intensity are higher.
The present invention uses following technical scheme：
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1) raw material is weighed：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 15~ 18 parts, 40~50 parts of bagasse, 1 part of rice bud powder；
2) sodium hydroxide and water, 1~3h of boiling, washing are added；50~80g of sodium hydroxide, solid-to-liquid ratio are added per 1kg raw materials For 1:10~1:12；
3) sodium hypochlorite is added, 3~10min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4) casein and cellulase are added, 20~40min is reacted；Per 1kg raw materials addition cellulase 0.1~ 3~8g of 0.12umol and casein；
5) 45~55 DEG C are warming up to, mashing obtains slurries；
6) alum and stearine are added, 60~70 DEG C of 30~50min of reaction is warming up to, is well mixed；The slurry per 1kg In liquid, 10~30g of 80~100g of alum and stearine is added；
7) above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In preparation process of the present invention, sodium hypochlorite is not intended as oxidant and directly participates in oxidation bleaching reaction, but uses Micro sodium hypochlorite and the lignin reaction in slurries, further remove lignin, improve the glossiness of paper and the profit of raw material With rate.Cellulase makes cellulose further discongest, sub-wire, brooming and cut-out, improves raw material availability.Alum and glyceryl stearate Acid esters improves brightness and the glossiness of paper.In addition, although the present invention improves brightness and the glossiness of paper, heat is steady It is qualitative to drop to 190 DEG C, add appropriate rice bud powder and mixed with other raw materials, final obtained paper heat endurance can be kept It is constant.
Preferably, the 2) in step, and cooking pressure is 0.2~0.5Mpa, and temperature is 100~200 DEG C, time 1h.Hydroxide Sodium boiling can dissolve lignin, polysaccharide and grease in wheat straw and bagasse, neutralize organic acid, after HTHP boiling, energy The dissolving of the organic matters such as lignin, polysaccharide, grease enough in raising raw material, improves the utilization rate and paper performance of raw material.
Preferably, 4) in step, and described cellulase is by ultrasonically treated.Ultrasonically treated cellulase, can The ability of cellulose hydrolyzation cellulose fibre is further improved, the utilization rate of raw material is improved.
Preferably, 80~the 100kHz of supersonic frequency.
5) in step, preferably 60 ° ± 2SR of beating degree.
Preferably, described rice bud powder, preparation method thereof is as follows：After paddy is soaked in water, suitable temperature and humidity is kept, When fibrous root length is to 0.8~1cm, dry, milling.
The invention has the advantages that：Directly non-bleached paper is made using plant fiber material in this, turns waste into wealth, has Beneficial to environmental protection.Wherein, sodium hypochlorite and the lignin reaction in slurries, improve the glossiness of paper.Cellulase is improved The utilization rate of raw material.Alum and stearine improve brightness and the glossiness of paper.Appropriate rice bud powder can be protected Hold final obtained paper heat endurance constant.
Embodiment
The present invention is further described in detail with reference to specific embodiment.
Embodiment 1
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 17 Part, 45 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.3Mpa, and temperature is 150~160 DEG C, washing；Often 1kg raw materials add sodium hydroxide 60g, and solid-to-liquid ratio is 1:11；
3. adding sodium hypochlorite, 5min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 30min is reacted；Cellulase 0.11umol and junket egg are added per 1kg raw materials White 5g；5. being warming up to 48~52 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 40min are warming up to, are well mixed；Per 1kg slurries In, add alum 90g and stearine 20g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 90kHz in advance.
Described rice bud powder, preparation method thereof is as follows：After paddy is soaked in water, suitable temperature and humidity is kept, treats that fibrous root is long During to 0.8~1cm, dry, milling.
Embodiment 2
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 15 Part, 40 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.2Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 50g, and solid-to-liquid ratio is 1:10；
3. adding sodium hypochlorite, 3min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 20min is reacted；Cellulase 0.1umol and casein are added per 1kg raw materials 3g；5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 30min are warming up to, are well mixed；Per 1kg slurries In, add alum 80g and stearine 10g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 80kHz in advance.
Described rice bud powder, preparation method thereof is as follows：After paddy is soaked in water, suitable temperature and humidity is kept, treats that fibrous root is long During to 0.8~1cm, dry, milling.
Embodiment 3
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 18 Part, 50 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 3h, cooking pressure is 0.5Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 80g, and solid-to-liquid ratio is 1:12；
3. adding sodium hypochlorite, 10min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 40min is reacted；Cellulase 0.12umol and junket egg are added per 1kg raw materials White 8g；5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 50min are warming up to, are well mixed；Per 1kg slurries In, add alum 100g and stearine 30g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 100kHz in advance.
Described rice bud powder, preparation method thereof is as follows：After paddy is soaked in water, suitable temperature and humidity is kept, treats that fibrous root is long During to 0.8~1cm, dry, milling.
Embodiment 4
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 16 Part, 48 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 2h, cooking pressure is 0.4Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 70g, and solid-to-liquid ratio is 1:10；
3. adding sodium hypochlorite, 7min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 25min is reacted；Cellulase 0.11umol and junket egg are added per 1kg raw materials White 7g；5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 35min are warming up to, are well mixed；Per 1kg slurries In, add alum 90g and stearine 22g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.In 4th step, described cellulase first passes through super in advance Sonication, supersonic frequency 95kHz.Described rice bud powder, preparation method thereof is as follows：After paddy is soaked in water, keep suitable temperature and Humidity, when fibrous root length is to 0.8~1cm, is dried, milling.
Reference examples 1
Same as Example 1, difference is：Only with wheat straw and bagasse as raw material, and without rice bud powder.
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw and bagasse, cleaning raw material and pulping；By weight, 17 parts of described wheat straw, bagasse 45 Part；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.3Mpa, and temperature is 150~160 DEG C, washing；Often 1kg raw materials add sodium hydroxide 60g, and solid-to-liquid ratio is 1:11；
3. adding sodium hypochlorite, 5min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 30min is reacted；Cellulase 0.11umol and junket egg are added per 1kg raw materials White 5g；
5. being warming up to 48~52 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 40min are warming up to, are well mixed；Per 1kg slurries In, add alum 90g and stearine 20g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 90kHz in advance.
Reference examples 2
Same as Example 1, difference is：Rice bud powder content is more.
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 17 Part, 45 parts of bagasse, 5 parts of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.3Mpa, and temperature is 150~160 DEG C, washing；Often 1kg raw materials add sodium hydroxide 60g, and solid-to-liquid ratio is 1:11；
3. adding sodium hypochlorite, 5min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 30min is reacted；Cellulase 0.11umol and junket egg are added per 1kg raw materials White 5g；
5. being warming up to 48~52 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 40min are warming up to, are well mixed；Per 1kg slurries In, add alum 90g and stearine 20g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 90kHz in advance.
Reference examples 3
Same as Example 2, difference is：It is not added with alum and stearine.
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 15 Part, 40 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.2Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 50g, and solid-to-liquid ratio is 1:10；
3. adding sodium hypochlorite, 3min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 20min is reacted；Cellulase 0.1umol and casein are added per 1kg raw materials 3g；
5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. it is warming up to 60~70 DEG C of reaction 30min；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 80kHz in advance.
Reference examples 4
Same as Example 2, difference is：It is not added with alum.
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 15 Part, 40 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.2Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 50g, and solid-to-liquid ratio is 1:10；
3. adding sodium hypochlorite, 3min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 20min is reacted；Cellulase 0.1umol and casein are added per 1kg raw materials 3g；
5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding stearine, 60~70 DEG C of reaction 30min are warming up to, are well mixed；Per in 1kg slurries, add Stearine 10g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 80kHz in advance.
Reference examples 5
Same as Example 2, difference is：It is not added with stearine.
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 15 Part, 40 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 1h, cooking pressure is 0.2Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 50g, and solid-to-liquid ratio is 1:10；
3. adding sodium hypochlorite, 3min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 20min is reacted；Cellulase 0.1umol and casein are added per 1kg raw materials 3g；
5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum, 60~70 DEG C of reaction 30min are warming up to, are well mixed；Per in 1kg slurries, alum 80g is added；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 80kHz in advance.
Reference examples 6
Same as Example 3, difference is：Not plus sodium hypochlorite.
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 18 Part, 50 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 3h, cooking pressure is 0.5Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 80g, and solid-to-liquid ratio is 1:12；
3. adding casein and cellulase, 40min is reacted；Cellulase 0.12umol and junket egg are added per 1kg raw materials White 8g；
4. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
5. adding alum and stearine, 60~70 DEG C of reaction 50min are warming up to, are well mixed；Per 1kg slurries In, add alum 100g and stearine 30g；
6. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
In 4th step, described cellulase first passes through ultrasonically treated, supersonic frequency 100kHz in advance.
Reference examples 7
Same as Example 3, difference is：Ultrasonic pretreatment is not carried out to cellulase.
A kind of method that utilization wheat straw and bagasse manufacture paper, comprises the following steps：
1. weigh raw material：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；By weight, described wheat straw 18 Part, 50 parts of bagasse, 1 part of rice bud powder；
2. adding sodium hydroxide and water, boiling 3h, cooking pressure is 0.5Mpa, and temperature is 100~200 DEG C, washing；Often 1kg raw materials add sodium hydroxide 80g, and solid-to-liquid ratio is 1:12；
3. adding sodium hypochlorite, 10min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4. adding casein and cellulase, 40min is reacted；Cellulase 0.12umol and junket egg are added per 1kg raw materials White 8g；
5. being warming up to 45~55 DEG C, mashing, beating degree is 60 ° of ± 2SR, obtains slurries；
6. adding alum and stearine, 60~70 DEG C of reaction 50min are warming up to, are well mixed；Per 1kg slurries In, add alum 100g and stearine 30g；
7. above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
Performance test is carried out to embodiment and reference examples, it is as a result as follows：
Conclusion：Compared with each reference examples, combination property of the invention is more excellent.The heat endurance for not adding rice bud powder only has 190 DEG C, illustrate that the addition of rice bud powder can be constant with keeps thermally-stabilised, and other combination properties are basically unchanged, rice bud powder contains Amount also has an impact to the present invention.Alum and stearine improve brightness and the glossiness of paper.Micro sodium hypochlorite Addition can further remove lignin, improve the glossiness of paper.And pass through the addition of ultrasonically treated cellulase, then make The combination property of paper increases.
It is described above, it is only the present invention preferably specific embodiment, protection scope of the present invention not limited to this is any ripe Those skilled in the art are known in the technical scope of present disclosure, the letter for the technical scheme that can be become apparent to Altered or equivalence replacement are each fallen within protection scope of the present invention.

Claims (5)

1. the method for manufacturing paper using wheat straw and bagasse, it is characterised in that comprise the following steps：
1) raw material is weighed：Wheat straw, bagasse and rice bud powder, cleaning raw material and pulping；Each raw material by weight, described wheat straw 15 ~18 parts, 40~50 parts of bagasse, 1 part of rice bud powder；
2) sodium hydroxide and water, 1~3h of boiling, washing are added；50~80g of sodium hydroxide is added per 1kg raw materials, solid-to-liquid ratio is 1: 10~1:12；
3) sodium hypochlorite is added, 3~10min is stirred；Sodium hypochlorite 10mmol is added per 1kg raw materials；
4) casein and cellulase are added, 20~40min is reacted；Added per 1kg raw materials 0.1~0.12umol of cellulase and 3~8g of casein；
5) 45~55 DEG C are warming up to, mashing obtains slurries；
6) alum and stearine are added, 60~70 DEG C of 30~50min of reaction is warming up to, is well mixed；Per 1kg slurries In, add 10~30g of 80~100g of alum and stearine；
7) above-mentioned paper pulp is through squeezing, dehydration and dries, as paper.
2. the method that utilization wheat straw according to claim 1 and bagasse manufacture paper, it is characterised in that the 2) in step, steams Pressure is boiled for 0.2~0.5Mpa, temperature is 100~200 DEG C, time 1h.
3. the method that utilization wheat straw according to claim 1 and bagasse manufacture paper, it is characterised in that the 4) in step, institute The cellulase stated is by ultrasonically treated.
4. the method that utilization wheat straw according to claim 1 and bagasse manufacture paper, it is characterised in that the 5) in step, beats The degree of beating is 60 ° of ± 2SR.
5. the method that utilization wheat straw according to claim 1 and bagasse manufacture paper, it is characterised in that described rice bud powder Preparation method is as follows：After paddy is soaked in water, suitable temperature and humidity is kept, when fibrous root length is to 0.8~1cm, is dried, mill Powder.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1421570A (en) * 2002-12-20 2003-06-04 山东大学 Enzymatic straw material pulping process
CN101089292A (en) * 2007-08-03 2007-12-19 山东泉林纸业有限责任公司 Pulp using rice grass and wheatgrass as raw material and preparation method thereof
CN101451320A (en) * 2007-12-05 2009-06-10 山东泉林纸业有限责任公司 Grass type low brightness pulp, preparation method and use thereof
CN103334335A (en) * 2013-07-12 2013-10-02 马志强 Preparation method of pollution-free high-whiteness palm silk paper pulp and application of paper pulp in paper product
WO2014160402A1 (en) * 2013-03-14 2014-10-02 Mascoma Corporation Co-conversion of carbohydrates to fermentation products in a single fermentation step

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1421570A (en) * 2002-12-20 2003-06-04 山东大学 Enzymatic straw material pulping process
CN101089292A (en) * 2007-08-03 2007-12-19 山东泉林纸业有限责任公司 Pulp using rice grass and wheatgrass as raw material and preparation method thereof
CN101451320A (en) * 2007-12-05 2009-06-10 山东泉林纸业有限责任公司 Grass type low brightness pulp, preparation method and use thereof
WO2014160402A1 (en) * 2013-03-14 2014-10-02 Mascoma Corporation Co-conversion of carbohydrates to fermentation products in a single fermentation step
CN103334335A (en) * 2013-07-12 2013-10-02 马志强 Preparation method of pollution-free high-whiteness palm silk paper pulp and application of paper pulp in paper product

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