CN108049233A - A kind of preparation process of highly intensified corrugated paper - Google Patents
A kind of preparation process of highly intensified corrugated paper Download PDFInfo
- Publication number
- CN108049233A CN108049233A CN201711476136.XA CN201711476136A CN108049233A CN 108049233 A CN108049233 A CN 108049233A CN 201711476136 A CN201711476136 A CN 201711476136A CN 108049233 A CN108049233 A CN 108049233A
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- corrugated paper
- preparation process
- additive
- agent
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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
- D21F11/12—Making corrugated paper or board
-
- 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
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
-
- 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
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- 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
- D21D5/04—Flat screens
-
- 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
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
- D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones
-
- 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
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/40—Inorganic fibres or flakes siliceous vitreous, e.g. mineral wool, glass fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/46—Non-siliceous fibres, e.g. from metal oxides
- D21H13/50—Carbon fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- 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
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
- D21H21/06—Paper forming aids
- D21H21/12—Defoamers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of preparation processes of highly intensified corrugated paper, are formed including following parts by weight raw material：40 80 parts of 60 80 parts of waste paper, 400 580 parts of water, 240 380 parts of slurries, 30 50 parts of glass fibre, 48 63 parts of carbon fiber, 130 160 parts of starch and additive, the additive includes retention agent, dehydrating agent, leavening, antifoaming agent and fungicide, and the technique is process using the processing step of slurrying, filling, mixing, desanding, screening, concentration, dehydration, drying, sizing and shaping；The preparation process of highly intensified corrugated paper environmental pollution caused when waste paper effectively being avoided to abandon, and corrugated paper production cost is reduced well, also effectively raise the use intensity and performance of corrugated paper.
Description
Technical field
The present invention relates to a kind of preparation processes of highly intensified corrugated paper.
Background technology
Corrugated paper is to process the plate object being bonded and the corrugated paper of the waveform formed by sheet lining and by corrugated roller,
Be generally divided into single corrugated paper and double two class of corrugated paper, the invention and application of corrugated paper have more than 100 years history history, have it is at low cost,
The advantages that light weight, processing are easily, intensity is big, printing adaptability sample is excellent, storage convenient in carrying can be used as food or digital production
The packaging of product, but user generally carries out random discarding after corrugated paper is used, and not only be easy to cause the pollution of environment, also
The substantial amounts of wasting of resources, and conventional corrugated paper, in use it is easy to appear softening, the use intensity of corrugated paper is not
Enough, the effect placed without long-time storage affects the using effect of corrugated paper.
The content of the invention
The technical issues of present invention mainly solves present in the prior art, can effectively reduce environment dirt so as to provide one kind
Dye, reduces the production cost of corrugated paper, and effectively improves the using effect of corrugated paper and the highly intensified corrugated paper of use intensity
Preparation process.
To solve the above problems, the present invention adopts the following technical scheme that, comprise the following steps：
1), slurrying：Waste paper is put into pulper and is crushed, the waste paper after crushing and water, starch are then pressed 1:
3:1.5 ratio is mixed, so as to obtain paper pulp.
2), filling is with mixing：Will slurrying complete paper pulp inside carry out water, starch, slurries, glass fibre, carbon fiber with
The addition of additive, and the mixed liquor after addition is imported into mixer and carries out heating mixing, mixed serum is obtained, institute
The mixing speed of mixer is stated in 1500r/min, mixing time at -90 minutes 60 minutes, heating temperature range be maintained at 80 degree -
85 degree.
3), desanding：Mixed serum after stirring is transferred to firmly miscellaneous every in the container of sand net, removing large-scale particle
Matter is slightly starched, and the pore diameter range every sand net center through hole is in 3mm-5mm.
4), screen：Fine filtering desanding will slightly will be carried out by desanding swirler, the hard impurity of small particle is removed, obtains
Good slurry.
5), concentration and dehydration：Good slurry by thickener is concentrated, removes moisture content extra inside good slurry so that contain
Water rate is less than 30% excellent slurry.
6), drying, sizing and shaping：Then the excellent slurry in step 5 is imported into dryer and carries out drying and processing, and will
First paper after the completion of drying carries out the coating of sizing agent, and the first paper that coating is completed then is allowed to carry out forming processes, obtains corresponding shape
The corrugated paper of shape.
Further, a kind of preparation process of highly intensified corrugated paper is made of following parts by weight raw material：Waste paper 60-80
Part, 400-580 parts of water, 240-380 parts of slurries, 30-50 parts of glass fibre, 48-63 parts of carbon fiber, 130-160 parts of starch are with adding
Add 40-80 parts of agent.
Further, the additive includes retention agent, dehydrating agent, leavening, antifoaming agent and fungicide.
Further, the retention agent is polyacrylamide, and the 12%-15% that the composition of retention agent is additive, is helped
The function of staying agent is the retention for increasing fiber fines, filler and pigment in paper.
Further, the fungicide is butyl hydroxybenzoate, and the 35%-40% that the composition of fungicide is additive, is killed
The setting of microbial inoculum ensure that paper pulp is not mouldy, putrid and deteriorated, and paper is not damaged by worms, and improve holding time and the effect of corrugated paper
Fruit.
Further, the dehydrating agent is sodium hypochlorite, and the 25%-35% that the composition of dehydrating agent is additive, dehydration
The setting of agent promotes corrugation paper pulp dehydrating effect, plays an important role of drying strengthening agent.
Further, the composition of the leavening is the 18%-25% of additive.
Further, the composition of the antifoaming agent is the 10%-15% of additive.
Further, the slurries are wood pulp liquid or straw pulp liquid.
The beneficial effects of the invention are as follows：The production of the corrugated paper is manufactured by waste paper, is effectively avoided useless
Paper environmental pollution caused when abandoning and the waste of resource are more reduction of the cost that the producer produces corrugated paper；And watt
Glass fibre and carbon fiber are with the addition of in the production process of stupefied paper, effectively raises the paper strength after corrugated paper production, and
And the production process of corrugated paper employs desanding, screening, the mode of production of concentration and dehydration, improves used in the production of corrugated paper
Corrugation paper pulp quality, so as to improve corrugated paper production after use intensity and using effect.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained, but following embodiments are only the preferred embodiment of the present invention, and not all.
Based on the embodiment in embodiment, those skilled in the art obtain other realities on the premise of creative work is not made
Example is applied, belongs to the protection domain of this patent.
Embodiment 1
A kind of preparation process of highly intensified corrugated paper selects parts by weight raw material：65 parts of waste paper, 450 parts of water, slurries 280
50 parts of part, 38 parts of glass fibre, 50 parts of carbon fiber, 140 parts of starch and additive, the fungicide is butyl hydroxybenzoate, and is killed
The composition of microbial inoculum is the 37% of additive, and the dehydrating agent is sodium hypochlorite, and 29% that the composition of dehydrating agent is additive, institute
The composition for stating leavening is the 21% of additive, and the composition of the antifoaming agent is the 13% of additive.
The slurries use wood pulp liquid.
The preparation method of the preparation process of the highly intensified corrugated paper comprises the following steps：
1), slurrying：Waste paper is put into pulper and is crushed, the waste paper after crushing and water, starch are then pressed 1:
3:1.5 ratio is mixed, so as to obtain paper pulp.
2), filling is with mixing：Will slurrying complete paper pulp inside carry out water, starch, slurries, glass fibre, carbon fiber with
The addition of additive, and the mixed liquor after addition is imported into mixer and carries out heating mixing, mixed serum is obtained, institute
The mixing speed of mixer is stated in 1500r/min, mixing time at -90 minutes 60 minutes, heating temperature range be maintained at 80 degree -
85 degree, wherein water addition manner stirs for lasting addition, and water adds number as 255 parts in total, while starch addition number 42.5
Part.
3), desanding：Mixed serum after stirring is transferred to firmly miscellaneous every in the container of sand net, removing large-scale particle
Matter is slightly starched, and the pore diameter range every sand net center through hole is in 3mm-5mm.
4), screen：Fine filtering desanding will slightly will be carried out by desanding swirler, the hard impurity of small particle is removed, obtains
Good slurry.
5), concentration and dehydration：Good slurry by thickener is concentrated, removes moisture content extra inside good slurry so that contain
Water rate is less than 30% excellent slurry.
6), drying, sizing and shaping：Then the excellent slurry in step 5 is imported into dryer and carries out drying and processing, and will
First paper after the completion of drying carries out the coating of sizing agent, and the first paper that coating is completed then is allowed to carry out forming processes, obtains corresponding shape
The corrugated paper of shape.
Embodiment 2
As different from Example 1, a kind of preparation process of highly intensified corrugated paper selects parts by weight raw material：Waste paper 70
60 parts of part, 490 parts of water, 310 parts of slurries, 40 parts of glass fibre, 56 parts of carbon fiber, 145 parts of starch and additive, the fungicide
For butyl hydroxybenzoate, and 37% that the composition of fungicide is additive, the dehydrating agent is sodium hypochlorite, and the composition of dehydrating agent
For the 29% of additive, the composition of the leavening is the 22% of additive, and the composition of the antifoaming agent is the 12% of additive.
The slurries are wood pulp liquid.
Wherein step 2 filling with mix during：Water adds number as 280 parts in total, while starch addition number
40 parts.
And the preparation method of the preparation process of highly intensified corrugated paper is same as Example 1.
Embodiment 3
As different from Example 1, a kind of preparation process of highly intensified corrugated paper selects parts by weight raw material：Waste paper 75
75 parts of part, 550 parts of water, 360 parts of slurries, 45 parts of glass fibre, 60 parts of carbon fiber, 155 parts of starch and additive, the fungicide
For butyl hydroxybenzoate, and 38% that the composition of fungicide is additive, the dehydrating agent is sodium hypochlorite, and the composition of dehydrating agent
For the 30% of additive, the composition of the leavening is the 21% of additive, and the composition of the antifoaming agent is the 11% of additive.
The slurries are wood pulp liquid.
Wherein step 2 filling with mix during：Water adds number as 325 parts in total, while starch addition number
42.5 parts.
And the preparation method of the preparation process of highly intensified corrugated paper is same as Example 1.
The beneficial effects of the invention are as follows：The production of the corrugated paper is manufactured by waste paper, is effectively avoided useless
Paper environmental pollution caused when abandoning and the waste of resource are more reduction of the cost that the producer produces corrugated paper；And watt
Glass fibre and carbon fiber are with the addition of in the production process of stupefied paper, effectively raises the paper strength after corrugated paper production, and
And the production process of corrugated paper employs desanding, screening, the mode of production of concentration and dehydration, improves used in the production of corrugated paper
Corrugation paper pulp quality, so as to improve corrugated paper production after use intensity and using effect.
To be only the specific embodiment of the present invention described, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work should all be covered in the scope of the present invention.
Claims (9)
1. a kind of preparation method of the preparation process of highly intensified corrugated paper, it is characterised in that：Comprise the following steps：
1), slurrying：Waste paper is put into pulper and is crushed, the waste paper after crushing and water, starch are then pressed 1:3:1.5
Ratio be mixed, so as to obtain paper pulp.
2), filling is with mixing：Water, starch, slurries, glass fibre, carbon fiber and addition are carried out inside the paper pulp that slurrying is completed
The addition of agent, and the mixed liquor after addition is imported into mixer and carries out heating mixing, mixed serum is obtained, it is described to stir
The mixing speed of machine is mixed in 1500r/min, for mixing time at -90 minutes 60 minutes, heating temperature range was maintained at 80 degree -85
Degree.
3), desanding：Mixed serum after stirring is transferred to every in the container of sand net, removing the hard impurity of large-scale particle, is obtained
To thick slurry, the pore diameter range every sand net center through hole is in 3mm-5mm.
4), screen：Fine filtering desanding will slightly will be carried out by desanding swirler, the hard impurity of small particle is removed, obtains good slurry.
5), concentration and dehydration：Good slurry by thickener is concentrated, removes moisture content extra inside good slurry so that moisture content
Excellent slurry less than 30%.
6), drying, sizing and shaping：Then the excellent slurry in step 5 is imported into dryer and carries out drying and processing, and will drying
First paper after finishing carries out the coating of sizing agent, and the first paper that coating is completed then is allowed to carry out forming processes, obtains respective shapes
Corrugated paper.
2. a kind of preparation process of highly intensified corrugated paper according to claim 1, it is characterised in that：Including following parts by weight
Number raw material is formed：60-80 parts of waste paper, 400-580 parts of water, 240-380 parts of slurries, 30-50 parts of glass fibre, carbon fiber 48-63
40-80 parts of part, 130-160 parts of starch and additive.
3. a kind of preparation process of highly intensified corrugated paper according to claim 2, it is characterised in that：The additive includes
Retention agent, dehydrating agent, leavening, antifoaming agent and fungicide.
4. a kind of preparation process of highly intensified corrugated paper according to claim 3, it is characterised in that：The retention agent is poly-
Acrylamide, and the 12%-15% that the composition of retention agent is additive.
5. a kind of preparation process of highly intensified corrugated paper according to claim 3, it is characterised in that：The fungicide is Buddhist nun
The golden butyl ester of pool, and the 35%-40% that the composition of fungicide is additive.
6. a kind of preparation process of highly intensified corrugated paper according to claim 3, it is characterised in that：The dehydrating agent is secondary
Sodium chlorate, and the 25%-35% that the composition of dehydrating agent is additive.
7. a kind of preparation process of highly intensified corrugated paper according to claim 3, it is characterised in that：The leavening into
Part is the 18%-25% of additive.
8. a kind of preparation process of highly intensified corrugated paper according to claim 3, it is characterised in that：The antifoaming agent into
Part is the 10%-15% of additive.
9. a kind of preparation process of highly intensified corrugated paper according to claim 2, it is characterised in that：The slurries are wood pulp
Liquid or straw pulp liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476136.XA CN108049233A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation process of highly intensified corrugated paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711476136.XA CN108049233A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation process of highly intensified corrugated paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108049233A true CN108049233A (en) | 2018-05-18 |
Family
ID=62129375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711476136.XA Pending CN108049233A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation process of highly intensified corrugated paper |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177363A (en) * | 2018-07-17 | 2019-01-11 | 蚌埠市奥特纸箱机械有限公司 | A kind of high-strength corrugated board |
| CN109763367A (en) * | 2018-12-29 | 2019-05-17 | 太仓适度纸业包装有限公司 | A kind of preparation process of corrugated paper |
| CN111169090A (en) * | 2020-03-03 | 2020-05-19 | 东莞市润信环保包装科技有限公司 | Manufacturing process of high-strength corrugated carton |
| CN111995874A (en) * | 2020-07-14 | 2020-11-27 | 广州至简通用设备制造有限公司 | Naturally degradable polymeric material and preparation method thereof |
| CN112538786A (en) * | 2020-11-03 | 2021-03-23 | 义乌市义南纸业有限公司 | High-performance environment-friendly corrugated base paper and preparation method thereof |
| CN116084203A (en) * | 2023-03-08 | 2023-05-09 | 东莞市协泰纸品有限公司 | Pit paper production process |
-
2017
- 2017-12-29 CN CN201711476136.XA patent/CN108049233A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177363A (en) * | 2018-07-17 | 2019-01-11 | 蚌埠市奥特纸箱机械有限公司 | A kind of high-strength corrugated board |
| CN109763367A (en) * | 2018-12-29 | 2019-05-17 | 太仓适度纸业包装有限公司 | A kind of preparation process of corrugated paper |
| CN111169090A (en) * | 2020-03-03 | 2020-05-19 | 东莞市润信环保包装科技有限公司 | Manufacturing process of high-strength corrugated carton |
| CN111995874A (en) * | 2020-07-14 | 2020-11-27 | 广州至简通用设备制造有限公司 | Naturally degradable polymeric material and preparation method thereof |
| CN112538786A (en) * | 2020-11-03 | 2021-03-23 | 义乌市义南纸业有限公司 | High-performance environment-friendly corrugated base paper and preparation method thereof |
| CN116084203A (en) * | 2023-03-08 | 2023-05-09 | 东莞市协泰纸品有限公司 | Pit paper production process |
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Application publication date: 20180518 |