CN107299555A - High-strength seam connecting belt body paper and preparation method thereof - Google Patents
High-strength seam connecting belt body paper and preparation method thereof Download PDFInfo
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- CN107299555A CN107299555A CN201610235566.1A CN201610235566A CN107299555A CN 107299555 A CN107299555 A CN 107299555A CN 201610235566 A CN201610235566 A CN 201610235566A CN 107299555 A CN107299555 A CN 107299555A
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- belt body
- connecting belt
- seam connecting
- body paper
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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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- 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
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/24—Polyesters
-
- 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
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite 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
- D21H21/14—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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Nonwoven Fabrics (AREA)
Abstract
High-strength seam connecting belt body paper disclosed in this invention, its primary raw material is softwood pulp, it is characterized in that, it also includes thermomechanical pulp, chemical fibre, the content of sizing agent, wherein thermomechanical pulp accounts for the 20 30% of high-strength seam connecting belt body paper oven-dry weight, the content of chemical fibre accounts for the 10 30% of high-strength seam connecting belt body paper oven-dry weight, and the content of sizing agent accounts for the 8 15% of high-strength seam connecting belt body paper oven-dry weight.The step of preparation method of high-strength seam connecting belt body paper is dried, is glued, being dried to paper including mashing, with slurry, punching slurry, copy paper, squeezing.Thermomechanical pulp is added in raw material of the present invention, by increasing capacitance it is possible to increase the bulk and suction colloidality energy of paper, paper product intensity are big, and evenness is good and dry and wet intensity is high, and breaking resistance is high, and bulk is high.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of high-strength seam connecting belt body paper and preparation method thereof.
Background technology
Joining paper band is the seam areas for Thistle board wall, plays connection, strengthens the effect of plate stitch.Using seam
Paper tape can avoid the cracking of plate stitch, improve sound insulation value and finishing effect.Therefore, Joining paper band is the weight of light partition wall construction
Want supplementary material.Joining paper band is fabricated by by a kind of paper fiber for having tensile strength, can anticracking, wrinkle resistant or shrinkproof；Include spy
Different water repellent agent, can soaking-resistant, be adapted to moist construction environment, prevent gaping of joints, deform.
The cross direction tensile strength of body paper has significant impact to wall seam effect, because by the wall of joint treatment
Body, after being changed by ambient temperature and humidity, will produce certain pulling force effect in the transverse direction of paper tape between plate and plate, works as original
The cross direction tensile strength of paper is relatively low and when bearing incessantly this pulling force, paper tape will ftracture.
The tightness and mechanical strength of paper have close relationship, there are some researches show the tensile strength of paper, bursting strength, tear
Degree of splitting and folding strength have the trend risen with the raising of tightness.The bulk of paper be represent paper density degree it is another
One index, is numerically the inverse of tightness.The bulk and tightness of paper are conflicts.At present, paper producer and make
User increasingly payes attention to bulk this index, because the paper of same thickness, bulk is higher, the fiber used is fewer.
At present, the nonwoven seam connecting belt body paper of in the market, it is impossible to while dry and wet intensity height, breaking resistance height are met, and bulky
The high characteristic of degree.
The content of the invention
First purpose of the present invention is to overcome deficiency of the prior art to have dry and wet intensity height, cracking resistance there is provided one kind
The high-strength seam connecting belt body paper that intensity is high, bulk is high.
In order to solve the above technical problems, the technical scheme is that：
High-strength seam connecting belt body paper, its primary raw material is softwood pulp, and it also includes thermomechanical pulp, and chemical fibre is applied
The content of jelly, wherein thermomechanical pulp accounts for the 20-30% of high-strength seam connecting belt body paper oven-dry weight, and the content of chemical fibre accounts for height
The 10-30% of strong seam connecting belt body paper oven-dry weight, the content of sizing agent accounts for the 8-15% of high-strength seam connecting belt body paper oven-dry weight.
Preferably, above-mentioned chemical fibre is polyester fiber, or polypropylene fibre.
Preferably, the above-mentioned sizing agent aqueous solution is by polyvinyl alcohol, butadiene-styrene rubber, water repellent agent, Cypres group
Into the percentage by weight of each component is polyvinyl alcohol 4-10%, butadiene-styrene rubber 2-6%, water repellent agent 0.5- in the sizing agent aqueous solution
2%, Cypres 0.08-0.2%.
Preferably, the percentage by weight of each component is preferably polyvinyl alcohol 6-8% in the above-mentioned sizing agent aqueous solution,
Butadiene-styrene rubber 3-5%, water repellent agent 0.8-1.5%, Cypres 0.1-0.15%.
Preferably, the content of above-mentioned thermomechanical pulp accounts for the 24-26% of high-strength seam connecting belt body paper oven-dry weight, changes
The content for learning fiber accounts for the 15-25% of high-strength seam connecting belt body paper oven-dry weight, and the content of sizing agent accounts for high-strength seam connecting belt body paper and dried
The 10-13% of dry weight, remaining is softwood pulp.
Preferably, the content of above-mentioned thermomechanical pulp is preferably the 24- of high-strength seam connecting belt body paper oven-dry weight
25%, the content of chemical fibre is preferably the 15-20% of high-strength seam connecting belt body paper oven-dry weight, and the content of sizing agent is preferably height
The 10-11% of strong seam connecting belt body paper oven-dry weight, remaining is softwood pulp.
Preferably, the fineness of above-mentioned chemical fibre is 1.5-10D.
Preferably, the length of above-mentioned chemical fibre is 18-32mm.
The length of above-mentioned chemical fibre is preferably 20-30mm.
The water repellent agent that the present invention is selected is aqueous polyurethane.
Thermomechanical pulp of the present invention is, using wet-land pine tree or masson pine as raw material, to pass through the method system of mechanical defibrator process
The BTMP obtained.
Second object of the present invention is a kind of with the high-strength seam that dry and wet intensity is high, breaking resistance is high, bulk is high
Preparation method with body paper.
In order to solve the above technical problems, the technical scheme is that：
The preparation method of high-strength seam connecting belt body paper, it is characterised in that it comprises the following steps：
(1) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 5-6%, is beaten
It is 90-110 amperes to starch electric current, slurry beating degree is reached 18-25 ° of SR, weight in wet base 8-12g.
(2) it is with slurry：Chemical fibre is added in slurry made from step (1) to be well mixed.
(3) punching slurry：Slurry made from step (2) is diluted with water to 1%, add added in wet strength agent, slurry per ton it is wet
Strong agent 40-60kg, is stirred 30-35 minutes.
(4) copy paper：Addition dispersant 3-5kg in dispersant, slurry per ton is added in slurry made from step (3), is mixed
Close uniform, then the copy paper on inclined wire paper machine.
(5) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.5-2.5kg/cm2。
(6) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 8-15% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(7) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is 1.5-
2.5kg/cm2.The wet strength agent that the present invention is selected is conventional wet strength agent, including Lauxite and its modified product, daiamid epoxy
Chloropropane and its modifier, dialdehyde starch, polyethyleneimine etc..
The dispersant that the present invention is selected is water soluble polymer, is a kind of hydrophilic high polymer material, can be molten in water
Solve or be swelled and form solution or dispersion liquid, be polyethylene glycol oxide, or PEO etc..
The advantages of the present invention：
(1) thermomechanical pulp is added in raw material of the present invention, by increasing capacitance it is possible to increase the bulk and suction colloidality energy of paper.
(2) polyvinyl alcohol containing proper proportion in the sizing agent that the present invention is used, styrene-butadiene latex, water repellent agent and surface are applied
Jelly, the testing result to finished product body paper shows, sizing agent of the present invention can assign body paper very high dry and wet intensity, breaking resistance
And bulk.
(3) softwood pulp of the invention from proper proportion, thermomechanical pulp, chemical fibre and sizing agent are raw material, are beaten
Slurry beating degree is reached 18-25 ° of SR, weight in wet base 8-12g after slurry, fibre length is kept as far as possible, make the paper product intensity manufactured paper with pulp big, it is even
Degree is good and dry and wet intensity is high, and breaking resistance is high, and bulk is high.
Embodiment
The invention is further illustrated by the following examples, but the present invention is not limited solely to following examples.
Embodiment one
High-strength seam connecting belt body paper and preparation method thereof：
(1) raw material proportioning：Softwood pulp accounts for the 45% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of wet-land pine tree
Mechanical pulp accounts for the 25% of high-strength seam connecting belt body paper oven-dry weight, and polyester fiber accounts for high-strength seam connecting belt body paper oven-dry weight 20%, applied
Jelly accounts for high-strength seam connecting belt body paper oven-dry weight 10%, and the wherein fineness of polyester fiber is 1.5-15D, and length is 20-30mm, is applied
The percentage by weight of each component is polyvinyl alcohol 6%, butadiene-styrene rubber 5%, aqueous polyurethane 1%, modified fourth in the jelly aqueous solution
Benzene rubber 0.1%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 5%, be beaten
Electric current is 90 amperes, is beaten 35 minutes, and it is 18-22 ° of SR, weight in wet base 8-9g to make slurry beating degree.
(3) it is with slurry：Polyester fiber is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent Lauxite, slurry per ton is added
Middle addition wet strength agent 50kg, is stirred 30 minutes.
(5) copy paper：Add to add in dispersant PEO, slurry per ton in slurry made from step (3) and disperse
Agent 3kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.5kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 8-10% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
1.5kg/cm2。
Embodiment two
(1) raw material proportioning：Softwood pulp accounts for the 50% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of masson pine
Mechanical pulp accounts for the 24% of high-strength seam connecting belt body paper oven-dry weight, and polypropylene fibre accounts for high-strength seam connecting belt body paper oven-dry weight 15%,
Sizing agent accounts for high-strength seam connecting belt body paper oven-dry weight 11%, and the wherein fineness of polypropylene fibre is 1.5-15D, and length is 20-
In 30mm, the sizing agent aqueous solution percentage by weight of each component be polyvinyl alcohol 6%, butadiene-styrene rubber 5%, aqueous polyurethane 1%,
Modified styrene butadiene rubber 0.1%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 5%, be beaten
Electric current is 100 amperes, is beaten 30 minutes, slurry beating degree is reached 20-25 ° of SR, weight in wet base 8-9g.
(3) it is with slurry：Polypropylene fibre is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent Lauxite, slurry per ton is added
Middle addition wet strength agent 40kg, is stirred 35 minutes.
(5) copy paper：Add to add in dispersant polyethylene glycol oxide, slurry per ton in slurry made from step (3) and disperse
Agent 3kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 2kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 8-12% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is 2kg/
cm2。
Embodiment three
(1) raw material proportioning：Softwood pulp accounts for the 60% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of wet-land pine tree
Mechanical pulp accounts for the 20% of high-strength seam connecting belt body paper oven-dry weight, and polyester fiber accounts for high-strength seam connecting belt body paper oven-dry weight 10%, applied
Jelly accounts for high-strength seam connecting belt body paper oven-dry weight 10%, and the wherein fineness of polyester fiber is 1.5-15D, and length is 20-30mm, is applied
The percentage by weight of each component is polyvinyl alcohol 6%, butadiene-styrene rubber 5%, aqueous polyurethane 1%, phenylpropyl alcohol rubber in the jelly aqueous solution
Glue 0.1%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 6%, be beaten
Electric current is 110 amperes, is beaten 45 minutes, slurry beating degree is reached 18-25 ° of SR, weight in wet base 10-12g.
(3) it is with slurry：Polyester fiber is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent dialdehyde starch, slurry per ton is added
Middle addition wet strength agent 60kg, is stirred 30 minutes.
(5) copy paper：Add to add in dispersant PEO, slurry per ton in slurry made from step (3) and disperse
Agent 5kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 2.5kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 12-15% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
2.5kg/cm2。
Example IV
(1) raw material proportioning：Softwood pulp accounts for the 40% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of masson pine
Mechanical pulp accounts for the 30% of high-strength seam connecting belt body paper oven-dry weight, and polyester fiber accounts for high-strength seam connecting belt body paper oven-dry weight 15%, applied
Jelly accounts for high-strength seam connecting belt body paper oven-dry weight 15%, and the wherein fineness of polyester fiber is 1.5-15D, and length is 20-30mm, is applied
The percentage by weight of each component is polyvinyl alcohol 6%, butadiene-styrene rubber 5%, aqueous polyurethane 1%, modified fourth in the jelly aqueous solution
Benzene rubber 0.1%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 6%, be beaten
Electric current is 110 amperes, is beaten 25 minutes, slurry beating degree is reached 20-25 ° of SR, weight in wet base 10-12g.
(3) it is with slurry：Polyester fiber is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent polyamideepichlorohydrin is added,
Wet strength agent 55kg is added in slurry per ton, is stirred 35 minutes.
(5) copy paper：Add to add in dispersant polyethylene glycol oxide, slurry per ton in slurry made from step (3) and disperse
Agent 5kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.8kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 10-12% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
1.8kg/cm2。
Embodiment five
(1) raw material proportioning：Softwood pulp accounts for the 55% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of wet-land pine tree
Mechanical pulp accounts for the 20% of high-strength seam connecting belt body paper oven-dry weight, and polypropylene fibre accounts for high-strength seam connecting belt body paper oven-dry weight 15%,
Sizing agent accounts for high-strength seam connecting belt body paper oven-dry weight 10%, and the wherein fineness of polypropylene fibre is 1.5-15D, and length is 20-
In 30mm, the sizing agent aqueous solution percentage by weight of each component be polyvinyl alcohol 6%, butadiene-styrene rubber 5%, aqueous polyurethane 1%,
Phenylpropyl alcohol rubber 0.1%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 6%, be beaten
Electric current is 110 amperes, is beaten 35 minutes, slurry beating degree is reached 18-22 ° of SR, weight in wet base 10-11g.
(3) it is with slurry：Polypropylene fibre is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent Lauxite, slurry per ton is added
Middle addition wet strength agent 45kg, is stirred 30 minutes.
(5) copy paper：Add to add in dispersant PEO, slurry per ton in slurry made from step (3) and disperse
Agent 4kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.5kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 9-10% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
1.5kg/cm2。
Embodiment six
(1) raw material proportioning：Softwood pulp accounts for the 42% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of wet-land pine tree
Mechanical pulp accounts for the 20% of high-strength seam connecting belt body paper oven-dry weight, and polypropylene fibre accounts for high-strength seam connecting belt body paper oven-dry weight 30%,
Sizing agent accounts for high-strength seam connecting belt body paper oven-dry weight 8%, and the wherein fineness of polypropylene fibre is 1.5-15D, and length is 20-
In 30mm, the sizing agent aqueous solution percentage by weight of each component be polyvinyl alcohol 4%, butadiene-styrene rubber 2%, aqueous polyurethane 1%,
Phenylpropyl alcohol rubber 0.08%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 6%, be beaten
Electric current is 110 amperes, is beaten 35 minutes, slurry beating degree is reached 18-22 ° of SR, weight in wet base 10-11g.
(3) it is with slurry：Polypropylene fibre is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent Lauxite, slurry per ton is added
Middle addition wet strength agent 45kg, is stirred 30 minutes.
(5) copy paper：Add to add in dispersant PEO, slurry per ton in slurry made from step (3) and disperse
Agent 4kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.5kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 9-10% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
1.5kg/cm2。
Embodiment seven
(1) raw material proportioning：Softwood pulp accounts for the 42% of high-strength seam connecting belt body paper oven-dry weight, and raw material is the defibrator process of wet-land pine tree
Mechanical pulp accounts for the 20% of high-strength seam connecting belt body paper oven-dry weight, and polypropylene fibre accounts for high-strength seam connecting belt body paper oven-dry weight 30%,
Sizing agent accounts for high-strength seam connecting belt body paper oven-dry weight 8%, and the wherein fineness of polypropylene fibre is 1.5-15D, and length is 20-
The percentage by weight of each component is polyvinyl alcohol 10%, butadiene-styrene rubber 6%, aqueous polyurethane in 30mm, the sizing agent aqueous solution
2%, phenylpropyl alcohol rubber 0.2%.
(2) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 6%, be beaten
Electric current is 110 amperes, is beaten 35 minutes, slurry beating degree is reached 18-22 ° of SR, weight in wet base 10-11g.
(3) it is with slurry：Polypropylene fibre is added in slurry made from step (1) to be well mixed.
(4) punching slurry：Slurry made from step (2) is diluted with water to 1%, wet strength agent Lauxite, slurry per ton is added
Middle addition wet strength agent 45kg, is stirred 30 minutes.
(5) copy paper：Add to add in dispersant PEO, slurry per ton in slurry made from step (3) and disperse
Agent 4kg, is well mixed, then the copy paper on inclined wire paper machine.
(6) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder
For 1.5kg/cm2。
(7) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine,
The pressure of speed and application roll is adjusted, makes the 9-10% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight.
(8) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is
1.5kg/cm2。
The high-strength seam connecting belt body paper that method test above section embodiment according to national Specification is prepared, index
It is required that see the table below with testing result.
The index request of the high-strength seam connecting belt body paper of table 1
The testing result of the high-strength seam connecting belt body paper of table 2
Claims (10)
1. high-strength seam connecting belt body paper, its primary raw material is softwood pulp, it is characterised in that it also includes thermomechanical pulp, change
Fiber is learned, the content of sizing agent, wherein thermomechanical pulp accounts for the 20-30% of high-strength seam connecting belt body paper oven-dry weight, chemical fibre
Content account for the 10-30% of high-strength seam connecting belt body paper oven-dry weight, the content of sizing agent accounts for high-strength seam connecting belt body paper oven-dry weight
8-15%, remaining is softwood pulp.
2. high-strength seam connecting belt body paper according to claim 1, it is characterised in that the chemical fibre be polyester fiber or
Polypropylene fibre.
3. high-strength seam connecting belt body paper according to claim 1, it is characterised in that the sizing agent aqueous solution is by polyethylene
The percentage by weight of each component is polyvinyl alcohol in alcohol, butadiene-styrene rubber, water repellent agent, Cypres composition, the sizing agent aqueous solution
4-10%, butadiene-styrene rubber 2-6%, water repellent agent 0.5-2%, Cypres 0.08-0.2%, remaining is water, the top sizing
Agent is modified styrene butadiene rubber or phenylpropyl alcohol rubber.
4. high-strength seam connecting belt body paper according to claim 3, it is characterised in that each component in the sizing agent aqueous solution
Percentage by weight is polyvinyl alcohol 6-8%, butadiene-styrene rubber 3-5%, water repellent agent 0.8-1.5%, Cypres 0.1-0.15%.
5. high-strength seam connecting belt body paper according to claim 1, it is characterised in that the content of the thermomechanical pulp accounts for high-strength
The 24-26% of seam connecting belt body paper oven-dry weight, the content of chemical fibre accounts for the 15-25% of high-strength seam connecting belt body paper oven-dry weight,
The content of sizing agent accounts for the 10-13% of high-strength seam connecting belt body paper oven-dry weight, and remaining is softwood pulp.
6. high-strength seam connecting belt body paper according to claim 5, it is characterised in that the content of the thermomechanical pulp accounts for high-strength
The 24-25% of seam connecting belt body paper oven-dry weight, the content of chemical fibre accounts for the 15-20% of high-strength seam connecting belt body paper oven-dry weight,
The content of sizing agent accounts for the 10-11% of high-strength seam connecting belt body paper oven-dry weight, and remaining is softwood pulp.
7. high-strength seam connecting belt body paper according to claim 1, it is characterised in that the fineness of the chemical fibre is 1.5-
10D。
8. high-strength seam connecting belt body paper according to claim 1, it is characterised in that the length of the chemical fibre is 18-
32mm。
9. high-strength seam connecting belt body paper according to claim 8, it is characterised in that the length of the chemical fibre is 20-
30mm。
10. the preparation method of high-strength seam connecting belt body paper, it is characterised in that it comprises the following steps：
(1) it is beaten：Softwood pulp, thermomechanical pulp and water are added in hydrabrusher, slurry concentration is 5-6%, mashing electricity
Flow for 90-110 amperes, slurry beating degree is reached 18-25 ° of SR, weight in wet base 8-12g；
(2) it is with slurry：Chemical fibre is added in slurry made from step (1) to be well mixed；
(3) punching slurry：Slurry made from step (2) is diluted with water to 1%, adds in wet strength agent, slurry per ton and adds wet strength agent
40-60kg, is stirred 30-35 minutes；
(4) copy paper：Addition dispersant 3-5kg in dispersant, slurry per ton is added in slurry made from step (3), mixing is equal
It is even, the then copy paper on inclined wire paper machine；
(5) squeezing drying：L Water Paper page made from step (4) is entered into drying cylinder after squeezing to dry, the operating pressure of drying cylinder is
1.5-2.5kg/cm2；
(6) it is glued：Sizing agent is added in engine sizing machine, the paper that step (5) is dried is glued in engine sizing machine, adjusted
The pressure of speed and application roll, makes the 8-15% that sizing agent concentration is high temperature resistant wood skin tape base paper oven-dry weight；
(7) it is dried to paper：L Water Paper after step (6) is glued, which enters in drying cylinder, dries, and the operating pressure of drying cylinder is 1.5-
2.5kg/cm2。
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