CN105908568A - Low-concentration sizing agent - Google Patents

Low-concentration sizing agent Download PDF

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Publication number
CN105908568A
CN105908568A CN201610451263.3A CN201610451263A CN105908568A CN 105908568 A CN105908568 A CN 105908568A CN 201610451263 A CN201610451263 A CN 201610451263A CN 105908568 A CN105908568 A CN 105908568A
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CN
China
Prior art keywords
sizing agent
weight portion
weight
carbimide
ester
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610451263.3A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Juzhu Patent Research And Development Co Ltd
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Guangzhou Juzhu Patent Research And Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Juzhu Patent Research And Development Co Ltd filed Critical Guangzhou Juzhu Patent Research And Development Co Ltd
Priority to CN201610451263.3A priority Critical patent/CN105908568A/en
Publication of CN105908568A publication Critical patent/CN105908568A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Abstract

The invention discloses a low-concentration sizing agent. The sizing agent is prepared from, by weight, 1-5 parts of hydrophobic nanometer titanium dioxide, 20-70 parts of a polystyrene acrylic emulsion, 1-10 parts of polyaluminum chloride, 1-10 parts of ethidene diamine, 1-3 parts of adipic acid dihydrazide, 5-10 parts of silica sol, 2-15 parts of organic isocyanate, 2-7 parts of a dispersing agent and the balance water, wherein the concentration of the sizing agent is 0.1-1.5 wt%. The sizing agent is low in cost.

Description

A kind of low concentration sizing agent
Technical field
The present invention relates to pulp technology for making paper, be specifically related to a kind of low concentration sizing agent.
Background technology
Sizing agent is a kind of additive for paper making, is broadly divided into plasm-glue-blending and top sizing, at paper Upper applying glue can improve the performances such as paper water resistant, oil resistant, anti-printing-ink, can improve smooth simultaneously Property, hydrophobicity, printing adaptability.
Chinese patent CN 101068986 A discloses and a kind of comprises stablizing of reactive sizing agent Aqueous dispersion, has at least 3mmol/g alkalescence based on reactive sizing agent 5-100 weight % The substantially linear polymer with nitrogen of nitrogen-atoms, and the sun of 1-50 weight % substitution value at least 0.05 The paper gluing agents of ionic starch.Sizing efficiency that this paper gluing agents has had and stable viscosity.
Chinese patent CN 101568687 A discloses and comprises the reactive gluing agents being dispersed in water With the mixtures of paper gluing agents of polymer, wherein said mixture can be by mixing following component And obtain: the mean diameter of (a) discrete particles reactive gluing agents less than 500nm is water-dispersible Body, wherein this dispersion can by by least one reactive gluing agents at least one surface activity Be emulsifiable in water in the presence of agent and obtain, and (b) at least one emulsion polymer and/or for Reactive gluing agents does not has at least one water-soluble polymer and/or the water dispersible of peptizaiton Polymer, and mixtures of paper gluing agents is in paper and the engine sizing of paper product and top sizing Purposes.
Existing sizing agent consumption is big, and kiss-coating amount is big, and not only cost is high, and easily increases paper Weight.
Summary of the invention
It is an object of the invention to provide a kind of low concentration sizing agent, this sizing agent low cost.
For achieving the above object, the present invention provides the sizing agent of a kind of low concentration, described sizing agent Hydrophobic nano titanium dioxide, the polystyrene propylene of 20-70 weight portion including 1-5 weight portion Yogurt liquid, the aluminium polychlorid of 1-10 weight portion, the ethylenediamine of 1-10 weight portion, 1-3 weight portion Adipic dihydrazide, the Ludox of 5-10 weight portion, the organic isocyanate of 2-15 weight portion, The dispersant of 2-7 weight portion and the water of surplus, the concentration of described sizing agent is 0.1-1.5 weight %.
Preferably, the hydrophobic nano titanium dioxide of described sizing agent 2-4 weight portion, 30-60 weight The amount polystyrene acrylic acid emulsion of part, the aluminium polychlorid of 3-7 weight portion, 2-6 weight portion Ethylenediamine, the adipic dihydrazide of 1-3 weight portion, the Ludox of 5-8 weight portion, 3-10 weight Organic isocyanate, the dispersant of 3-6 weight portion and the water of surplus of part.
Preferably, the concentration of described sizing agent is 0.3-1.2 weight %.
Preferably, the primary particle sizes of described hydrophobic nano titanium dioxide is 5-75 nanometer.
Preferably, the solid content of described polystyrene acrylic acid emulsion is 5-20 weight %, and viscosity is 0-55mPa S, pH are 3.5-6.
Preferably, the solid content of described Ludox be 15-25 weight %, pH be 3-5.
Preferably, described sizing agent also includes the Polyethylene Glycol of 1-10 weight portion.
Preferably, described organic isocyanate is Carbimide. dodecyl ester, Carbimide. octadecane Base ester, Carbimide. myristyl ester, Carbimide. cetyl ester, Carbimide. eicosyl ester or Carbimide. ester in the last of the ten Heavenly stems.
Preferably, described dispersant is LOMAR PWA EINECS 246-676-2 or lignosulphonic acid.
In paper industry, sizing agent is a bigger spending, with the most molten in sizing agent per ton The price of matter is 40,000 calculating, and the concentration that this sizing agent is diluted to 5 weight % carries out using and 1 weight % Concentration use, if identical effect can be reached, then cost savings 4/5ths.This The concentration of the sizing agent that invention provides is 0.01-1.5 weight %, far below industry level, but but carries The degree of sizing of high paper, surface strength of paper, bursting strength, ring crush intensity, dry tensile strength and wet draw Power, and kiss-coating amount is at 4 weight below % of industry routine, it is possible to sizing agent is greatly lowered Consumption, cost-effective.
Detailed description of the invention
Detailed description below is merely to illustrate the present invention, but the most therefore the present invention is subject to To any restriction.
The present invention provides the sizing agent of a kind of low concentration, described sizing agent to include 1-5 weight portion Hydrophobic nano titanium dioxide, the polystyrene acrylic acid emulsion of 20-70 weight portion, 1-10 weight The amount aluminium polychlorid of part, the ethylenediamine of 1-10 weight portion, adipic acid two acyl of 1-3 weight portion Hydrazine, the Ludox of 5-10 weight portion, the organic isocyanate of 2-15 weight portion, 2-7 weight portion Dispersant and the water of surplus, it is preferable that the hydrophobic nano of described sizing agent 2-4 weight portion Titanium dioxide, the polystyrene acrylic acid emulsion of 30-60 weight portion, the polymerization chlorine of 3-7 weight portion Change aluminum, the ethylenediamine of 2-6 weight portion, the adipic dihydrazide of 1-3 weight portion, 5-8 weight portion Ludox, the organic isocyanate of 3-10 weight portion, the dispersant of 3-6 weight portion and surplus Water, the concentration of described sizing agent be 0.1-1.5 weight %, preferably 0.3-1.2 weight %.
Hydrophobic nano titanium dioxide can come from being purchased, and its primary particle diameter can be that 5-75 receives Rice.
Polystyrene acrylic acid emulsion can be purchased, and its solid content can be 5-20 weight %, viscosity Can be 0-55mPa S, pH can be 3.5-6.
Ludox can be purchased, its solid content can be 15-25 weight %, pH can be 3-5.
Polyethylene Glycol can be purchased, and can be polyethylene glycol 200-20000.
Containing unsaturated bond in organic isocyanate structure, therefore there is high activity, easily with one The organic or inorganic thing reaction of a little band active groups, generates polyurethane elastomer, such as, described Organic isocyanate is Carbimide. dodecyl ester, Carbimide. stearyl, Carbimide. 14 Arrcostab, Carbimide. cetyl ester, Carbimide. eicosyl ester or Carbimide. ester in the last of the ten Heavenly stems.
The effect of dispersant is to improve further each component dispersion effect in water in sizing agent Really, described dispersant can be LOMAR PWA EINECS 246-676-2 or lignosulphonic acid.
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
The method of testing of the embodiment of the present invention and comparative example is as follows:
Degree of sizing: use Cobb water absorbent surface gravimetric method, compare paper unit are after immersion The quality of upper water suction, uses g/m2Represent.Measure according to GB GB/T461.3-2005.
Surface strength of paper: the surface of the speed printing paper to increase continuously, until surface occurs Plucking, uses cm s-1Represent.Measure according to GB GB/T2679.15-1997.
Bursting strength: refer to the maximum uniformly increased that Paper or cardboard can bear in unit are Pressure, represents with kPa.Burst index=bursting strength/quantitatively.According to GB GB/T454-1989 measures.
Glue applying method: the glue application solution prepared is poured in ready pallet, then will not execute The sample of glue immerses in glue application solution, takes out, and put in page flash dryer after 20s, until its It is completely dried up.
Ring crush intensity uses standard GB/T/T 2679.8-1995 to measure, and unit is N m/g.
Dry tensile strength detects according to GB/T453-2002 method, and unit is N.
Wet tensile strength intensity detects according to GB/T652 method, and unit is N.
Embodiment 1
By under agitation adding 3 grams of hydrophobic nano titanium dioxide in 100 grams of water, (primary particle sizes is 75 nanometers), (solid content is 33 weight %, viscous to be subsequently adding 40 grams of polystyrene acrylic acid emulsions Degree for 40mPa S, pH be 4), 5 grams of aluminium polychlorid, 2 grams of ethylenediamines, 2 grams of adipic acid two Hydrazides, 5 grams of Ludox (solid content be 22 weight %, pH be 3.5), 2 grams of Carbimide. dodecyls Ester, 2 grams of LOMAR PWA EINECS 246-676-2, be subsequently adding water and make the concentration of solution be 0.1 weight %, stir at high pressure homogenize Mix (100 MPas, 80 DEG C) under machine and carry out homogenizing stirring 1 hour, be then cooled to room temperature, To sizing agent S1.Sizing agent S1 is used for applying glue, and specific experiment the results are shown in Table 1.
Embodiment 2
By under agitation adding 5 grams of hydrophobic nano titanium dioxide in 100 grams of water, (primary particle sizes is 55 nanometers), (solid content is 33 weight %, viscous to be subsequently adding 60 grams of polystyrene acrylic acid emulsions Degree for 40mPa S, pH be 4), 9 grams of aluminium polychlorid, 5 grams of ethylenediamines, 2 grams of adipic acid two Hydrazides, 8 grams of Ludox (solid content be 22 weight %, pH be 3.5), 15 grams of Carbimide. octadecyls Ester, 7 grams of lignosulphonic acids, be subsequently adding water and make the concentration of solution be 1.2 weight %, at high pressure homogenize Under blender, (100 MPas, 80 DEG C) carry out homogenizing stirring 1 hour, are then cooled to room temperature, Obtain sizing agent S2.Sizing agent S2 is used for applying glue, and specific experiment the results are shown in Table 1.
Embodiment 3
By under agitation adding 1 gram of hydrophobic nano titanium dioxide in 100 grams of water, (primary particle sizes is 10 nanometers), (solid content is 33 weight %, viscous to be subsequently adding 20 grams of polystyrene acrylic acid emulsions Degree for 40mPa S, pH be 4), 3 grams of aluminium polychlorid, 9 grams of ethylenediamines, 2 grams of adipic acid two Hydrazides, 9 grams of Ludox (solid content be 22 weight %, pH be 3.5), 12 grams of Carbimide. cetyls Ester, 3 grams of lignosulphonic acids, be subsequently adding water and make the concentration of solution be 0.6 weight %, at high pressure homogenize Under blender, (100 MPas, 80 DEG C) carry out homogenizing stirring 1 hour, are then cooled to room temperature, Obtain sizing agent S3.Sizing agent S3 is used for applying glue, and specific experiment the results are shown in Table 1.
Comparative example 1
Comparative example 1 is substantially the same manner as Example 1, and difference is, the concentration of sizing agent is 0.05 weight %, Obtain sizing agent D1.Sizing agent D1 is used for applying glue, and specific experiment the results are shown in Table 1.
Comparative example 2
Comparative example 2 is substantially the same manner as Example 1, and difference is, is added without Ludox, is executed Colloid D2.Sizing agent D2 is used for applying glue, and specific experiment the results are shown in Table 1.
Comparative example 3
Comparative example 3 is substantially the same manner as Example 1, and difference is, is added without Polyethylene Glycol, obtains Sizing agent D3.Sizing agent D3 is used for applying glue, and specific experiment the results are shown in Table 1.
Comparative example 4
Comparative example 4 is substantially the same manner as Example 1, and difference is, is added without ethylenediamine, is executed Colloid D4.Sizing agent D4 is used for applying glue, and specific experiment the results are shown in Table 1.
From the results shown in Table 1, the sizing agent that the present invention provides can improve executing of paper Colloidality, surface strength of paper, bursting strength, ring crush intensity, dry tensile strength and wet tensile strength, and hang Glue amount is at 4 weight below % of industry routine, it is possible to the consumption of sizing agent is greatly lowered, saves Cost.
Table 1

Claims (9)

1. the sizing agent of a low concentration, it is characterised in that described sizing agent includes 1-5 weight Amount the hydrophobic nano titanium dioxide of part, the polystyrene acrylic acid emulsion of 20-70 weight portion, The aluminium polychlorid of 1-10 weight portion, the ethylenediamine of 1-10 weight portion, 1-3 weight portion oneself two Acid dihydrazide, the Ludox of 5-10 weight portion, the organic isocyanate of 2-15 weight portion, 2-7 The dispersant of weight portion and the water of surplus, the concentration of described sizing agent is 0.1-1.5 weight %.
Sizing agent the most according to claim 1, it is characterised in that described sizing agent 2-4 The hydrophobic nano titanium dioxide of weight portion, the polystyrene acrylic acid emulsion of 30-60 weight portion, The aluminium polychlorid of 3-7 weight portion, the ethylenediamine of 2-6 weight portion, the adipic acid of 1-3 weight portion Two hydrazides, the Ludox of 5-8 weight portion, the organic isocyanate of 3-10 weight portion, 3-6 weight The dispersant of amount part and the water of surplus.
Sizing agent the most according to claim 1, it is characterised in that described sizing agent Concentration is 0.3-1.2 weight %.
Sizing agent the most according to claim 1, it is characterised in that described hydrophobic type is received The primary particle sizes of rice titanium dioxide is 5-75 nanometer.
Sizing agent the most according to claim 4, it is characterised in that described polystyrene The solid content of acrylic emulsion is 5-20 weight %, and viscosity is 0-55mPa S, and pH is 3.5-6.
Sizing agent the most according to claim 1, it is characterised in that described Ludox Solid content be 15-25 weight %, pH be 3-5.
Sizing agent the most according to claim 1, it is characterised in that described sizing agent is also Polyethylene Glycol including 1-10 weight portion.
Sizing agent the most according to claim 1, it is characterised in that described organic isocyanide Acid esters be Carbimide. dodecyl ester, Carbimide. stearyl, Carbimide. myristyl ester, Carbimide. cetyl ester, Carbimide. eicosyl ester or Carbimide. ester in the last of the ten Heavenly stems.
Sizing agent the most according to claim 1, it is characterised in that described dispersant is LOMAR PWA EINECS 246-676-2 or lignosulphonic acid.
CN201610451263.3A 2016-06-20 2016-06-20 Low-concentration sizing agent Pending CN105908568A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112391868A (en) * 2020-11-17 2021-02-23 济南森瑞达纸业有限公司 Preparation method of fluorescent agent-free matt copper board paper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6268414B1 (en) * 1999-04-16 2001-07-31 Hercules Incorporated Paper sizing composition
CN101381974A (en) * 2008-09-27 2009-03-11 上海东升新材料有限公司 Composite sizing agent for coating paper in machine and sizing method
CN102011344A (en) * 2010-06-29 2011-04-13 上海东升新材料有限公司 Surface sizing agent for electrostatic duplicating paper and preparation method and applications thereof
CN103866623A (en) * 2014-02-25 2014-06-18 苏州恒康新材料有限公司 Paper sizing agent and preparation method thereof
CN104530321A (en) * 2015-01-30 2015-04-22 合肥工业大学 Preparation method of nanoparticle-modified polyurethane acrylate copolymer resin microemulsion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6268414B1 (en) * 1999-04-16 2001-07-31 Hercules Incorporated Paper sizing composition
CN101381974A (en) * 2008-09-27 2009-03-11 上海东升新材料有限公司 Composite sizing agent for coating paper in machine and sizing method
CN102011344A (en) * 2010-06-29 2011-04-13 上海东升新材料有限公司 Surface sizing agent for electrostatic duplicating paper and preparation method and applications thereof
CN103866623A (en) * 2014-02-25 2014-06-18 苏州恒康新材料有限公司 Paper sizing agent and preparation method thereof
CN104530321A (en) * 2015-01-30 2015-04-22 合肥工业大学 Preparation method of nanoparticle-modified polyurethane acrylate copolymer resin microemulsion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112391868A (en) * 2020-11-17 2021-02-23 济南森瑞达纸业有限公司 Preparation method of fluorescent agent-free matt copper board paper

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