CN109082947A - A kind of preparation method of colour moulded paper pulp product - Google Patents
A kind of preparation method of colour moulded paper pulp product Download PDFInfo
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- CN109082947A CN109082947A CN201810786022.3A CN201810786022A CN109082947A CN 109082947 A CN109082947 A CN 109082947A CN 201810786022 A CN201810786022 A CN 201810786022A CN 109082947 A CN109082947 A CN 109082947A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; 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
- D21H17/64—Alkaline compounds
-
- 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
- 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
- D21H21/16—Sizing or water-repelling agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/28—Colorants ; Pigments or opacifying agents
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of preparation methods of colored moulded paper pulp product, including prepare bamboo fibre slurry, and the adhesive waterproofing agent of corresponding parts by weight are added and anionic emulsifier stirs to form pulp suspension；Direct fast black or the dilution of direct everbright fast orange are added into the pulp suspension of above-mentioned preparation；Finally by pulp suspension be sent into mould machine dehydration and it is hot-forming.Meanwhile colour moulded paper pulp product made from the above method is used invention also discloses a kind of, it is a kind of moulded paper pulp product of environmental protection that moulding article colouring is uniformly, degradable under natural environment.
Description
Technical field
The present invention relates to paper mould fields, and in particular to a kind of preparation method of colour moulded paper pulp product.
Background technique
In recent years, with manufacturing industry product, the demand of especially outer packing manufacture product is being continued to increase, manufacturing process
It is immature also bring corresponding environmental problem, and the increasingly stronger environmental protection consciousness of people makes technical staff deeply pair
The research of regenerated resources manufacture.
Traditional paper pulp moulding product it is more for manufacture paper dishware, fruit egg tray, product packaging liner buffering
Material replaces the uses of plastics.Product external packaging higher for appearance requirement, still using traditional material such as plastics, can
Material, product not enough environmental protection, higher cost.In field of papermaking, the more surface property that paper is improved by paper coating technique,
Improve the added value and application range of paper.Due to the particularity of paper pulp moulding product, surface irregularity, and traditional paper pulp die
Molding product surface is more coarse, appearance is poor relative to other type of package class, this is related to the fiber properties of paper pulp, fiber
The performances such as coarse, the hygroscopic property on surface, inflammable make prepared product have certain limitation in these areas.
Bamboo fibre not only plants high survival rate as a kind of fast growing plant, and growth cycle is short, with stronger resistance to
Mill property and hygroscopicity, it is strong compared with cotton fiber and viscose rayon, it has a extensive future, but compared to other raw materials or renewable resource wink
Between hygroscopicity it is superpower, this also needs to have higher requirement to its waterproofness to a certain extent.On the other hand, existing paper pulp die
Molding product joined corresponding waterproofing agent and oil-proofing agent to improve waterproofness and grease proofness, and product obtained above from
So during degradation, since waterproofing agent feature belongs in weak cation, it is added into paper pulp, due to Electrostatic Absorption
It is attached to fiber surface, a tunic is formed in fiber surface, keeps the connection between fiber and fiber closer, press down to a certain extent
The fracture of cellulose macromolecule chain is made, so that with forcing for waterproofing agent dosage, tensile strength is improved, in the natural environment its matter
Amount decline becomes slowly, weight-loss ratio decline；Meanwhile bamboo fibre hollow cavity, there are grooves and crack on surface, laterally there are minor matters,
Light feature makes it have splendid colourability, but poor for the dyefastness of direct dyes, and goes out during dyeing
Existing fiber crystal region increases, and structure becomes closely, so that dye-uptake declines, upper dye is not uniform enough, and for the natural drop in later period
Solution also brings problem.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to overcome defect in the prior art, provide a kind of colouring uniformly and
The degradable moulded paper pulp product and preparation method thereof of environmental protection.
A kind of preparation method of colored moulded paper pulp product provided by the invention, comprising the following steps:
(1) raw bamboo is carried out size degradation in boiling water by the preparation of bamboo fibre slurry after boiling 1~2 hour, grinding obtains bamboo fibre
Dimension, chooses the bamboo fibre of 200~400 mesh and 2~3 times of bamboo fibre weight of water is added and stir into slurry；
(2) preparation of bamboo fibre mixture, the raw material including choosing following parts by weight stir to form pulp suspension:
(3) preparation of colored paper pulp, comprising:
Direct fast black or direct everbright fast orange are diluted to after 0.5% mass concentration with 60 DEG C~80 DEG C of soft water be added to
In the bamboo fibre mixture of above-mentioned preparation；
(4) paper pulp molding forming, by the pulp suspension be sent into mould machine dehydration and it is hot-forming.
It optionally, further include being at interval of 8~10 minutes addition concentration after color pigment is added in step (3)
0.1~0.2 parts by weight of 0.1~0.2 parts by weight of sodium chloride and/or 20g/L sodium hydroxide of 60g/L, are at least repeated 3 times.
Optionally, in step (3), three upper dye stages were divided into, comprising:
Under 50 DEG C of dyeing temperature, upper dye 15min；
Under 60 DEG C of dyeing temperature, upper dye 5min；
Under 45 DEG C of dyeing temperature, upper dye 5min.
Optionally, 0.1~0.2 parts by weight of soda ash of 25g/L are added while first time sodium chloride solution being added.
Optionally, after the paper pulp molding forming, further include the steps that carrying out atomization UV gloss oil spraying on its surface.
Optionally, the waterproofing agent is cationic neutral sizing agent.
Optionally, anionic emulsifier is dihydromethyl propionic acid and/or dimethylolpropionic acid.
Optionally, described adhesive is that water, carboxymethyl cellulose, starch are mixed system by the parts by weight of 1:1~2:1~2
?.
Optionally, speed of agitator is 900rpm~1200rpm in step (1) and (2), mixing time be 15min~
20min。
Optionally, paper pulp is delivered to vacuum mould-suction molding machine by step (3), is dehydrated and extruding is dehydrated into parison again, then lead to
It crosses hot-pressing drying and paper mould is made；Dewatering time is 30~60 seconds, and wet base is dried 40~60 minutes under 100 degrees Celsius.
The present invention also provides a kind of paper moulds prepared by the preparation method using above-mentioned colored moulded paper pulp product
Product.
Technical solution of the present invention has the advantages that
A kind of preparation method of moulded paper pulp product of the embodiment of the present invention, selecting raw bamboo is that layered product prepares raw material fibre
Dimension, paper mould sheet is as high energy-consuming industry, and bamboo growth is rapidly, and power of regeneration is strong, has its superior as fiber raw material
Property, in addition, the vinifera palm oil composition that the layered product produced with bamboo contains because of it, packing itself and liner as expensive goods has
Natural bamboo taste faint scent；Its waste can also be with recycling and reusing.
Bamboo is due to its own natural attribute, so that it is with extremely strong hygroscopicity, wearability and dyeability, as
The packaging of product, especially expensive goods or electronic product is it is necessary to have fabulous waterproofness, the deformation or mould in order to avoid shell absorbs water
Become, it is therefore desirable to add quantitative even more waterproofing agents during it makes paper pulp, make it have good waterproof
The bamboo fibre grain of 200~400 mesh is made first, is stirred for being slurried, ensure that finished product by moisture resistance, the embodiment of the present invention for raw bamboo
Adhesive, waterproofing agent and the anionic emulsifier of rational proportion is added in obtained slurry in the flatness and flatness on surface,
Wherein, the addition of waterproofing agent can moulding article degrade in a natural environment bring it is obstructive, researcher experiments have shown that, when
In the moulded paper pulp product for being added to a large amount of waterproofing agents and oil-proofing agent, during later period natural degradation, since waterproofing agent is in
Belong to weak cation, Electrostatic Absorption and be attached to fiber surface, fiber surface formed a tunic, make between fiber and fiber
Connection it is closer, inhibit to a certain extent cellulose macromolecule chain be broken, tensile strength improve, increase the degradation of product
Difficulty, the present invention bamboo fibre hybrid scheme for when, and be added to 0.5wt%~0.8wt% anionic emulsifier, such as dihydroxy
On the one hand methylpropanoic acid or dimethylolpropionic acid, the addition of above-mentioned auxiliary agent improve mutual fused between the various substances such as vinifera palm oil
Property, on the other hand since it is with anionic property, and the Electrostatic Absorption of waterproofing agent is balanced, meanwhile, dihydroxymethyl
Propionic acid also has the function as colour stabilizer, therefore, is realizing strong waterproofness that product should have simultaneously, after discarding
Tests prove that its degradation rate can be improved really during natural degradation.
The dilution of direct fast black or direct everbright fast orange, unique knot of bamboo fibre are added in bamboo fibre mixing suspension
Structure maximizes polar attraction and nonpolar gravitation between fiber molecule and dye molecule, during upper dye, in batches
Addition concentration be 60g/L sodium chloride and 90g/L sodium hydroxide, on the one hand, the addition in batches of sodium chloride facilitates fibre
The dye-uptake of dimension, on the other hand, with the progress of upper dye, cellulose crystallite area increases, and dye-uptake declines to a great extent, seriously affects
The dye-uptake of cellulose fibre, the addition of the sodium hydroxide of the sodium chloride and 20g/L of 60g/L can effectively inhibit cellulose knot
The growth of crystalline region is conducive to later period natural environment and degrades；Direct dyes, which is dissociated into the solution on pigment anion, contaminates cellulose fiber
Dimension, and the weak cation of waterproofing agent also has certain side for the anionic property for balancing cellulose fibre to a certain extent
Help, but due to the charge balance with waterproofing agent of anion emulsifier, but be unlikely to waterproof agent molecule and dyeing agent molecule for
Cellulose fibre competitive binding.In addition, the trial by researcher is found, and when upper dye temperature is more than 65 DEG C, cellulose fiber
Variation takes place in dimension lattice, and with the raising of temperature or alkali concentration, strong contraction occurs for fiber, and lumen becomes smaller, and fiber is fierce
Expansion, longitudinally distorts.It therefore, should not mistake although promote temperature facilitates dye-uptake and dyeing speed to a certain extent
Height, the dyeing that the present embodiment divides three-stage to carry out different phase, temperature is substantially in low height, facilitates dye-uptake, while dyestuff
Colouring is uniform.
Specific embodiment
Embodiment 1
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 1 hour, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 55 parts, with 25 parts of adhesive, 0.5 part of waterproofing agent, anionic is newborn for addition
0.5 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:1:2
?；Waterproofing agent selects acrylate copolymer, anionic emulsifier dihydromethyl propionic acid and dimethylolpropionic acid 1:1 mixing；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, 0.1 parts by weight of sodium chloride and 20g/L hydrogen that concentration is 60g/L were added at interval of 8~10 minutes
0.2 parts by weight of sodium oxide molybdena, are repeated 3 times；And 0.1 weight of soda ash of 25g/L is added while first time sodium chloride solution being added
Part；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.04Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
Embodiment 2
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 2 hours, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 75 parts, with 35 parts of adhesive, 0.7 part of waterproofing agent, anionic is newborn for addition
0.8 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:2:1
?；Waterproofing agent selects acrylate copolymer, and anionic emulsifier is dihydromethyl propionic acid；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, 0.2 parts by weight of sodium chloride and 20g/L hydrogen that concentration is 60g/L were added at interval of 8~10 minutes
0.1 parts by weight of sodium oxide molybdena, are repeated 3 times；And 0.2 weight of soda ash of 25g/L is added while first time sodium chloride solution being added
Part；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.07Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
Embodiment 3
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 1 hour, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 65 parts, with 30 parts of adhesive, 0.6 part of waterproofing agent, anionic is newborn for addition
0.7 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:1:1
?；Waterproofing agent selects acrylate copolymer, and anionic emulsifier is dimethylolpropionic acid；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, 0.1 parts by weight of sodium chloride that concentration is 60g/L were added at interval of 8~10 minutes, are repeated 3 times；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.06Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
Embodiment 4
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 2 hours, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 70 parts, with 32 parts of adhesive, 0.6 part of waterproofing agent, anionic is newborn for addition
0.6 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:2:2
?；Waterproofing agent selects acrylate copolymer, anionic emulsifier dihydromethyl propionic acid and dimethylolpropionic acid 1:1 mixing；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, it is 0.2 parts by weight of 20g/L sodium hydroxide at interval of 8~10 minutes addition concentration, is repeated 3 times；
And 0.1 parts by weight of soda ash of 25g/L are added while first time sodium chloride solution being added；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.07Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
Embodiment 5
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 1 hour, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 55 parts, with 60 parts of adhesive, 0.6 part of waterproofing agent, anionic is newborn for addition
0.6 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:1:2
?；Waterproofing agent selects acrylate copolymer, anionic emulsifier dihydromethyl propionic acid and dimethylolpropionic acid 1:1 mixing；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, it is 0.1 parts by weight of 20g/L sodium hydroxide at interval of 8~10 minutes addition concentration, is repeated 3 times；
And 0.1 parts by weight of soda ash of 25g/L are added while first time sodium chloride solution being added；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.04Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
Embodiment 6
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. raw bamboo is subjected to size degradation in boiling water after boiling 2 hours, grinding obtains bamboo fibre, 200~400 purposes of selection
Bamboo fibre, and the water for being added 2 times of bamboo fibre weight stirs into bamboo fibre slurry；
S2. above-mentioned obtained bamboo fibre slurry is taken 55 parts, with 73 parts of adhesive, 0.7 part of waterproofing agent, anionic is newborn for addition
0.8 part of agent is uniformly mixed；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:1:2
?；Waterproofing agent selects acrylate copolymer, anionic emulsifier dihydromethyl propionic acid and dimethylolpropionic acid 1:1 mixing；
S3. add after direct fast black or direct everbright fast orange being diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water
Enter into the bamboo fibre mixture of above-mentioned preparation；
S4. the above-mentioned bamboo fibre mixture for having added fuel is under 50 DEG C of dyeing temperature, upper dye 15min；Later at 60 DEG C
Dyeing temperature under, upper dye 5min, under 45 DEG C of dyeing temperature, upper dye 5min.
During upper dye, 0.2 parts by weight of sodium chloride that concentration is 60g/L were added at interval of 8~10 minutes, are repeated 3 times；
And 0.1 parts by weight of soda ash of 25g/L are added while first time sodium chloride solution being added；
S5. vacuum mold molding machine is stretched in the bamboo fibre mixing liquid suspension of above-mentioned formation, vacuum mould-suction, vacuum is negative
Pressure is 0.07Mpa, is dehydrated into wet base, then is dehydrated into parison again by the upper and lower mould extruding of mould machine, and dewatering time is up to 30 seconds altogether,
It is finally placed in thermo-pressing moulder in 100 DEG C of at a temperature of drying and moulding.
S6. after paper pulp molding forming, atomization UV gloss oil spraying is carried out on its surface.
Comparative example 1
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. by bagasse in boiling water after boiling 1.5 hours in size degradation tank with the speed size degradation of 900rpm~1200rpm
8 minutes, and the water that 2.5 times of its weight is added stirs into fibre stuff；
S2. above-mentioned obtained fibre stuff is taken 55 parts, addition with 28 parts of adhesive, 0.7 part of waterproofing agent, direct fast black or
Direct 0.8 part of everbright fast orange continues to be uniformly mixed with 500rpm~600rpm in size degradation tank at 80 DEG C, and the time 9 minutes；
Wherein, the present embodiment selection adhesive is to be mixed with water, carboxymethyl cellulose, starch by the parts by weight of 1:1:1.6
It is made；Waterproofing agent selects sodium methyl silicate；
S3. a part of mould machine is stretched in the mixing liquid suspension of above-mentioned formation, vacuum mould-suction, negative pressure of vacuum
For 0.04~0.07Mpa, it is dehydrated into wet base, then parison is dehydrated by the upper and lower mould extruding of mould machine again, dewatering time reaches altogether
It 30 seconds, is finally placed in thermo-pressing moulder in 130~150 degree of at a temperature of drying and moulding.
Comparative example 2
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. by bagasse and rice straw in boiling water after boiling 1.5 hours in size degradation tank with the speed of 900rpm~1200rpm
Degree size degradation 8 minutes, the water that 2.5 times of its weight is added stirs into fibre stuff；
S2. above-mentioned obtained fibre stuff is taken 55 parts, addition with 28 parts of adhesive, 0.7 part of waterproofing agent, direct fast black or
Direct 0.8 part of everbright fast orange continues to be uniformly mixed with 500rpm~600rpm in 70 DEG C of size degradation tanks, and the time 9 minutes；
Wherein, the present embodiment selection adhesive is to be mixed with water, carboxymethyl cellulose, starch by the parts by weight of 1:1:1.6
It is made；Waterproofing agent selects acrylate copolymer；
S3. a part of mould machine is stretched in the mixing liquid suspension of above-mentioned formation, vacuum mould-suction, negative pressure of vacuum
For 0.04~0.07Mpa, it is dehydrated into wet base, then parison is dehydrated by the upper and lower mould extruding of mould machine again, dewatering time reaches altogether
It 30 seconds, is finally placed in thermo-pressing moulder in 130~150 degree of at a temperature of drying and moulding.
Comparative example 3
A kind of preparation method of the colored moulded paper pulp product of the present embodiment, comprising the following steps:
S1. by bagasse and rice straw in boiling water after boiling 1.5 hours in size degradation tank with the speed of 900rpm~1200rpm
Degree size degradation 8 minutes, the water that 3 times of its weight is added stirs into fibre stuff；
S2. above-mentioned obtained fibre stuff is taken 75 parts, addition with 30 parts of adhesive, 0.8 part of waterproofing agent, direct fast black or
Direct 0.5 part of everbright fast orange continues to be uniformly mixed with 500rpm~600rpm in 70 DEG C of size degradation tanks, and the time 9 minutes；
Wherein, the present embodiment selection adhesive is to be made with water, carboxymethyl cellulose, starch by the parts by weight mixing of 1:1:1
?；Waterproofing agent selects acrylate copolymer；
S3. a part of mould machine is stretched in the mixing liquid suspension of above-mentioned formation, vacuum mould-suction, negative pressure of vacuum
For 0.04~0.07Mpa, it is dehydrated into wet base, then parison is dehydrated by the upper and lower mould extruding of mould machine again, dewatering time reaches altogether
It 30 seconds, is finally placed in thermo-pressing moulder in 130~150 degree of at a temperature of drying and moulding.
Test example
Performance test
1. appearance: embodiment 1- embodiment 6: color is normal, free from extraneous odour, surfacing, no greasy dirt dust or other different
Object, crack-free, no eyelet；Comparative example 1- comparative example 3: color is normal, rare peculiar smell, surfacing, no greasy dirt dust or other
Foreign matter, crack-free, no eyelet；
2. color uniformity: it is homogeneous above embodiment 1- embodiment 6: to contaminate color；Comparative example 1- comparative example 3: color
Upper dye is obvious uneven, shows as deep mixed cause.
3. glossiness, the measurement of optical flatness are measured using gloss examination question instrument, select 45 ° of measuring methods (with 1 light
Damp degree is 1 unit)；Water resistance, at room temperature, 48 hours water mist sprinklings；Deflection measures under the pressure of compression 830N.
Test data is as shown in the table:
| Glossiness | Water resistance | Deflection/mm | |
| Embodiment 1 | 358 | It is non-leakage | ≤2 |
| Embodiment 2 | 356 | It is non-leakage | ≤2 |
| Embodiment 3 | 321 | It is non-leakage | ≤2 |
| Embodiment 4 | 363 | It is non-leakage | ≤2 |
| Embodiment 5 | 346 | It is non-leakage | ≤2 |
| Embodiment 6 | 383 | It is non-leakage | ≤2 |
| Comparative example 1 | 289 | It is non-leakage | ≤2 |
| Comparative example 2 | 285 | It is non-leakage | ≤2 |
| Comparative example 3 | 280 | It is non-leakage | ≤2 |
It is right 300 or more it is seen from the above data that the glossiness of embodiment 1 to embodiment 6 shows well
The raw fibre that ratio uses has difference, weaker compared with embodiment in glossiness, and effect is preferable in water resistance and deflection.
4. degree of degradation dependence test index
Method is exposed to the open air using soil buries method and natural climate and carries out experimental study, and each embodiment or reference examples do 20-30 weight
It is multiple, select row when these three indexs of its crystallinity, tensile strength, weight-loss ratio to measure later, the measurement of 4.1 crystallinity: according to X-
The rotation Laue method of ray measures crystallinity with Japanese Rigaku D/max-1200X-x ray diffractometer x,
Determination condition are as follows: Cu target, K alpha ray, monochrome filtering, 40kV, 300mA, step diameter scanning, 3 seconds/walk, step width was
0.10 °, 20.6~40 ° of scanning range.Calculation formula is as follows: crystallinity CrI (%)=[FK/ (FK+FA)] × 100
Wherein: FK is crystal region area (m2)；FA is amorphous region area (m2)
Test data is as shown in the table:
| After 4 weeks | After 6 weeks | After 8 weeks | After 12 weeks | |
| Embodiment 1 | 71.02% | 64.12% | 63.33% | 62.35% |
| Embodiment 2 | 68.02% | 66.47% | 64.37% | ? |
| Embodiment 3 | 71.32% | 69.49% | 64.01% | 62.35% |
| Embodiment 4 | 75.07% | 75.45% | 68.33% | 59.16% |
| Embodiment 5 | 76.32% | 71.11% | 63.58% | ? |
| Embodiment 6 | 75.02% | 73.15% | 67.48% | ? |
| Comparative example 1 | 91.27% | 87.36% | 84.69% | 89.64% |
| Comparative example 2 | 92.42% | 90.84% | 91.92% | 89.56% |
| Comparative example 3 | 91.12% | 90.11% | 88.57% | 88.02% |
It is seen from the above data that changing greatly for preceding 4 weeks cellulose crystallities, has dropped 30% or so, later 6 to
12 weeks, become relatively slowly, but relative to comparative example, variation of the variation of crystallinity in entire 12 weeks is all relatively
Small, cellulose long-chain fracture is more difficult, so that the structure of its crystal region is more close.
The measurement of 4.2 weight-loss ratios
Sample is placed in drier and is balanced two days, is weighed, weight-loss ratio is calculated.
Weight-loss ratio (WL)/%=(W0-W1)/W0 × 100
Wherein: W0 is sample initial mass (g)；W1 is sample through light degradation treated quality (g).
| After 4 weeks | After 6 weeks | After 8 weeks | After 12 weeks | |
| Embodiment 1 | 91.5% | 80.2% | 75.0% | 61.5% |
| Embodiment 2 | 91.2% | 89.3% | 78.9% | 59.4% |
| Embodiment 3 | 93.8% | 89.0% | 72.1% | 58.2% |
| Embodiment 4 | 94.6% | 88.8% | 69.1% | 65.2% |
| Embodiment 5 | 86.3% | 80.6% | 75.4% | 60.1% |
| Embodiment 6 | 92.7% | 86.4% | 77.1% | 63.9% |
| Comparative example 1 | 96.3% | 93.1% | 85.3% | 84.6% |
| Comparative example 2 | 93.9% | 89.6% | 81.3% | 88.1% |
| Comparative example 3 | 91.1% | 87.5% | 82.3% | 83.4% |
From the data of percentage of water loss can with data before in conjunction with from the point of view of, with the variation of crystallinity and tensile strength,
Variation takes place in fibre structure inside sample, therefore, over time, the matter of the sample of embodiment 1 to embodiment 5
Amount also start to be decreased obviously, embodiment 6 since outer layer coats UV film, make to a certain extent entirely degrade become compared with
To be slow, but it can be seen that still decreased significantly than comparative example.
It should be noted that raw material slurry is also adapted to other xylophytas, draft other than the bamboo fibre that the present invention uses
Plant and waste and old paper.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (11)
1. a kind of preparation method of colour moulded paper pulp product, which comprises the following steps:
(1) preparation of bamboo fibre slurry, by raw bamboo, progress size degradation, grinding obtain bamboo fibre after boiling 1~2 hour in boiling water,
It chooses the bamboo fibre of 200~400 mesh and 2~3 times of bamboo fibre weight of water is added and stir into slurry；
(2) preparation of bamboo fibre mixture, the raw material including choosing following parts by weight stir to form pulp suspension:
(3) preparation of colored paper pulp, comprising:
It is added after direct fast black or direct everbright fast orange are diluted to 0.5% mass concentration with 60 DEG C~80 DEG C of soft water to above-mentioned
In the bamboo fibre mixture of preparation；
(4) paper pulp molding forming, by the pulp suspension be sent into mould machine dehydration and it is hot-forming.
2. the preparation method of colour moulded paper pulp product according to claim 1, which is characterized in that in step (3), often
The sodium chloride and/or 0.1~0.2 parts by weight and 20g/L sodium hydroxide 0.1 that 8~10 minutes addition concentration in interval is 60g/L~
0.2 parts by weight, are at least repeated 3 times.
3. the preparation method of colour moulded paper pulp product according to claim 1 or 2, which is characterized in that in step (3)
In, it was divided into three upper dye stages, comprising:
Under 50 DEG C of dyeing temperature, upper dye 15min；
Under 60 DEG C of dyeing temperature, upper dye 5min；
Under 45 DEG C of dyeing temperature, upper dye 5min.
4. the preparation method of colour moulded paper pulp product according to claim 2, which is characterized in that chlorine is added in first time
0.1~0.2 parts by weight of soda ash of 25g/L are added while changing sodium solution.
5. the preparation method of colour moulded paper pulp product according to claim 1 or 2, which is characterized in that the paper pulp die
After being moulded into type, further include the steps that carrying out atomization UV gloss oil spraying on its surface.
6. the preparation method of colour moulded paper pulp product according to claim 3, which is characterized in that the waterproofing agent is sun
Ion neutral sizing agent.
7. the preparation method of colour moulded paper pulp product according to claim 1, which is characterized in that anionic emulsifier
For dihydromethyl propionic acid and/or dimethylolpropionic acid.
8. it is according to claim 1 colour moulded paper pulp product preparation method, which is characterized in that described adhesive be by
Water, carboxymethyl cellulose, starch are mixed to prepare by the parts by weight of 1:1~2:1~2.
9. the preparation method of colour moulded paper pulp product according to claim 1, which is characterized in that in step (1) and (2)
Speed of agitator is 900rpm~1200rpm, and mixing time is 15min~20min.
10. the preparation method of colour moulded paper pulp product according to claim 1, which is characterized in that step (3) is by paper pulp
It is delivered to vacuum mould-suction molding machine, is dehydrated and extruding is dehydrated into parison again, then paper mould is made by hot-pressing drying；Dehydration
Time is 30~60 seconds, and wet base is dried 40~60 minutes under 100 degrees Celsius.
11. further including the paper pulp die of the preparation method preparation of any colored moulded paper pulp product according to claim 1~9
Mould product.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670407A (en) * | 2019-09-10 | 2020-01-10 | 佛山市顺德区文达创盈包装材料科技有限公司 | Pulp molding product modifying additive, preparation method and application |
| CN110901178A (en) * | 2019-11-25 | 2020-03-24 | 东莞市美盈森环保科技有限公司 | Circulating environment-friendly printing paper dinner plate and production process thereof |
| CN111041886A (en) * | 2019-12-30 | 2020-04-21 | 永发（河南）模塑科技发展有限公司 | Process and equipment for preparing fine yellow pulp product formed by paper and plastic |
| CN112761031A (en) * | 2021-01-13 | 2021-05-07 | 南京师范大学 | Preparation method of environment-friendly bagasse natural-color lunch box |
| CN114411442A (en) * | 2021-12-28 | 2022-04-29 | 永发（江苏）模塑包装科技有限公司 | Composition for molded article, process for producing the same, molded article and process for producing the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074523A (en) * | 1996-11-11 | 2000-06-13 | Nippon Kodoshi Corporation | Method of manufacturing highly-airtightened porous paper |
| CN101451318A (en) * | 2007-11-28 | 2009-06-10 | 吴瑞良 | Bamboo fibre composition and method for producing the same |
| CN102011224A (en) * | 2010-10-14 | 2011-04-13 | 美国华益科技有限公司 | Making process of blended yarns of bamboo fibers and cotton fibers |
| CN103321072A (en) * | 2013-05-29 | 2013-09-25 | 台州金晟环保制品有限公司 | Manufacturing method of bamboo fiber molding type product |
| CN104120635A (en) * | 2014-07-11 | 2014-10-29 | 福建农林大学 | Degradable flame-retardant heat preservation ultralight foam material and preparation method thereof |
| CN104420362A (en) * | 2013-09-09 | 2015-03-18 | 青岛三秀新科技复合面料有限公司 | Bamboo fiber dyeing technology |
| CN106555365A (en) * | 2016-11-23 | 2017-04-05 | 东莞市美之兰环保科技有限公司 | A kind of wet pressed pulp support of rub resistance and losing fibre preventing dust and preparation method thereof |
-
2018
- 2018-07-17 CN CN201810786022.3A patent/CN109082947B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6074523A (en) * | 1996-11-11 | 2000-06-13 | Nippon Kodoshi Corporation | Method of manufacturing highly-airtightened porous paper |
| CN101451318A (en) * | 2007-11-28 | 2009-06-10 | 吴瑞良 | Bamboo fibre composition and method for producing the same |
| CN102011224A (en) * | 2010-10-14 | 2011-04-13 | 美国华益科技有限公司 | Making process of blended yarns of bamboo fibers and cotton fibers |
| CN103321072A (en) * | 2013-05-29 | 2013-09-25 | 台州金晟环保制品有限公司 | Manufacturing method of bamboo fiber molding type product |
| CN104420362A (en) * | 2013-09-09 | 2015-03-18 | 青岛三秀新科技复合面料有限公司 | Bamboo fiber dyeing technology |
| CN104120635A (en) * | 2014-07-11 | 2014-10-29 | 福建农林大学 | Degradable flame-retardant heat preservation ultralight foam material and preparation method thereof |
| CN106555365A (en) * | 2016-11-23 | 2017-04-05 | 东莞市美之兰环保科技有限公司 | A kind of wet pressed pulp support of rub resistance and losing fibre preventing dust and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670407A (en) * | 2019-09-10 | 2020-01-10 | 佛山市顺德区文达创盈包装材料科技有限公司 | Pulp molding product modifying additive, preparation method and application |
| CN110670407B (en) * | 2019-09-10 | 2022-04-01 | 佛山市顺德区文达创盈包装材料科技有限公司 | Pulp molding product modifying additive, preparation method and application |
| CN110901178A (en) * | 2019-11-25 | 2020-03-24 | 东莞市美盈森环保科技有限公司 | Circulating environment-friendly printing paper dinner plate and production process thereof |
| CN111041886A (en) * | 2019-12-30 | 2020-04-21 | 永发（河南）模塑科技发展有限公司 | Process and equipment for preparing fine yellow pulp product formed by paper and plastic |
| CN111041886B (en) * | 2019-12-30 | 2022-07-01 | 永发（河南）模塑科技发展有限公司 | Process and equipment for preparing fine yellow pulp product formed by paper and plastic |
| CN112761031A (en) * | 2021-01-13 | 2021-05-07 | 南京师范大学 | Preparation method of environment-friendly bagasse natural-color lunch box |
| CN114411442A (en) * | 2021-12-28 | 2022-04-29 | 永发（江苏）模塑包装科技有限公司 | Composition for molded article, process for producing the same, molded article and process for producing the same |
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