CN103485236A - Anti-counterfeiting pearlescent pigment coated white cardboard and preparation method thereof - Google Patents

Anti-counterfeiting pearlescent pigment coated white cardboard and preparation method thereof Download PDF

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Publication number
CN103485236A
CN103485236A CN201310483278.4A CN201310483278A CN103485236A CN 103485236 A CN103485236 A CN 103485236A CN 201310483278 A CN201310483278 A CN 201310483278A CN 103485236 A CN103485236 A CN 103485236A
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pearlescent pigment
counterfeiting
coated white
paper
pearlescent
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CN201310483278.4A
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Chinese (zh)
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CN103485236B (en
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袁世炬
付建生
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湖北工业大学
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Abstract

The invention discloses an anti-counterfeiting pearlescent pigment coated white cardboard and a preparation method thereof. Visible pearlescent pigments are uniformly distributed on the bottom surface of the anti-counterfeiting pearlescent pigment coated white cardboard disclosed by the invention. The pearlescent pigments after chemical pretreatment are added into a coating material or a surface sizing agent or a bottom paste, and the bottom surface of the coated white cardboard can form an anti-counterfeiting pearlescent pigment mark by virtue of coating operation or surface sizing operation or papermaking process. Through pretreatment of the pearlescent pigments, the anti-counterfeiting pearlescent pigment coated white cardboard disclosed by the invention can solve the technical quality problems of low retention rate of the pearlescent pigments, non-uniform distribution, poor binding force and the like; the visible pearlescent pigments are uniformly distributed on the bottom surface of the anti-counterfeiting pearlescent pigment coated white cardboard disclosed by the invention, a multi-color tiny spot-like pearlescent visual effect can be achieved according to different series of the pearlescent pigments, and the anti-counterfeiting mark is formed and is obvious and aesthetic, so that the anti-counterfeiting effect of the coated white cardboard can be achieved; the coated white cardboard is prepared mainly based on an existing coating device or a surface sizing device or a papermaking device in a production process flow, and the cost is low.

Description

A kind of pearlescent pigment anti-counterfeiting coating white card paper and preparation method thereof

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Technical field

The present invention relates to anti-counterfeiting coating white card paper, be specifically related to a kind of pearlescent pigment anti-counterfeiting coating white card paper and preparation method thereof.

Background technology

The coated white cardboard anti-counterfeiting technology is mainly to cut well-graded colored fiber water and be uniformly dispersed whole, be chosen in bottom (or sandwich layer) beater floor or paper machine bottom (or sandwich layer) stream send section that colored fiber is joined in paper pulp, and it is uniformly dispersed, obtain bottom (or sandwich layer) slurry, then deliver to the paper machine and manufactured paper with pulp together with surface layer, thereby form the anti-counterfeiting coating white card paper that bottom (or sandwich layer) is evenly distributed with colored fiber.This technology provides a kind of investment less, is applicable to the wrapping anti-counterfeiting coating white card paper of general merchandise and production technology thereof.The anti-counterfeiting technology of colored fiber is to add a small amount of colored fiber (not being) in the bottom paper of art post paperboard in subbing, the art post paperboard bottom surface that makes bottom surface not be coated with has macroscopic, the dispergated colored fiber of any angle, has affected the purity of the original true qualities in page bottom surface; If to the art post paperboard of the end (instead) face coating, colored fiber is just capped, invisible, can not play anti-fake effect.

Pearlescent pigment, consist of one or several thin layer of metal oxide Wrapping sheet shape base materials (this base material can be natural mica, synthetic mica, sheet glass, tabular alumina, sheet silica, flake ferric oxide).Change burning species or thickness of thin layer, just can produce different pearl effects.Pearlescent pigment is compared with other pigment, and its distinctive soft pearly luster has unrivaled effect.The pearlescent pigment content of beary metal is low, meets the associated safety technical standard.

Due to the factor such as laminated structure, surface electrical negativity and the proportion of pearlescent pigment is larger, if take simple hybrid mode to add in paper or the paper surface, will cause pearlescent pigment exist retention in paper low, the paper skewness and with the technical quality problems such as the paper fibrous binding force is poor.Retention is low causes the pearlescent pigment that needs to add more pearlescent pigment and loss can affect the paper machine system of manufacturing paper with pulp; Skewness also will cause using more pearlescent pigment, and cost improves; Poor with the paper fibrous binding force is that pearlescent pigment easily comes off from paper, affects the quality of antifalse effect and paper.

At present, pearlescent pigment is not disclosed or reports for anti-counterfeiting coating white card paper.

Summary of the invention

The shortcoming that the object of the invention is to overcome prior art, with not enough, provides a kind of pearlescent pigment anti-counterfeiting coating white card paper.

Another object of the present invention is to provide the preparation method of above-mentioned pearlescent pigment anti-counterfeiting coating white card paper.

Purpose of the present invention is achieved through the following technical solutions:

A kind of pearlescent pigment anti-counterfeiting coating white card paper, its end (instead) face is (positive for supplying printing surface, reverse side or claim normally printing surface not of bottom surface) be uniformly distributed the visible pearlescent pigment of vision, at the bottom of making coated white cardboard, (instead) face presents the visual effect of fragmentarily glimmering; By changing the kind of pearlescent pigment, can realize different gloss and interference colours.Can, according to client's different requirements, adopt the pearlescent pigment of various different series.

In described pearlescent pigment, the content of beary metal such as lead, arsenic, mercury, cadmium, barium and chromium, according to the sanitary standard requirement of coated white cardboard packaging article, adopt the pearlescent pigment of corresponding sanitary standard grade.

Described pearlescent pigment is preferably optic metachromatic pearlescent pigment (OVP), and when adopting the optic metachromatic pearlescent pigment, at the bottom of coated white cardboard, (instead) face can produce the changeable colors along with angle optical effect, realizes the package anti-counterfeiting of special cargo.

The particle size range of described pearlescent pigment is preferably 5～2000 microns; The consumption of described pearlescent pigment is preferably 0.0001～0.2g/m 2(pearlescent pigment weight and finished product coated white cardboard Area Ratio).

The preparation method of above-mentioned pearlescent pigment anti-counterfeiting coating white card paper, comprise the steps:

To the double spread art post paperboard, take in the end (instead) face top layer coating composition preparation process, the pearlescent pigment of processing with chemical treatments is added in coating composition, implement by the operation of coating process, at the bottom of making coated white cardboard, (instead) face forms the pearlescent pigment anti-fake mark;

Or, to the single face coated white cardboard, the pearlescent pigment that will process with chemical treatments mixes with Cypres, at the end of coated white cardboard, (instead) face carries out the top sizing operation, and at the bottom of making coated white cardboard, (instead) face forms the pearlescent pigment anti-fake mark;

Or to the single face coated white cardboard, the pearlescent pigment that chemical treatments is processed is added in employing in bottom paper pulp, before adding implantation site and be the head box that the machine chest that can stir or stream send section, through manufacturing paper with pulp compoundly with sandwich layer, surface layer, form the anti-fake mark that the end (instead) face is uniformly distributed pearlescent pigment.

Described chemical treatments comprises calgon, sodium phosphate trimer, carboxymethyl cellulose, quaternary ammonium salt cationic starch.

Preferably, the preparation method of described pearlescent pigment anti-counterfeiting coating white card paper, comprise the steps:

To the double spread art post paperboard, adopt in advance calgon and carboxymethyl cellulose to process pearlescent pigment, again in the end (instead) face top layer coating composition preparation process, pretreated pearlescent pigment is added in coating composition, operation by coating process is implemented, and at the bottom of making coated white cardboard, (instead) face forms the pearlescent pigment anti-fake mark;

Or to the single face coated white cardboard, adopt in advance sodium phosphate trimer and carboxymethyl cellulose to process pearlescent pigment, again pretreated pearlescent pigment suspension is mixed with Cypres, at the end of coated white cardboard, (instead) face carries out the top sizing operation, and at the bottom of making coated white cardboard, (instead) face forms the pearlescent pigment anti-fake mark;

Or to the single face coated white cardboard, adopt in advance quaternary ammonium salt cationic starch and calgon to process pearlescent pigment, add again pretreated pearlescent pigment in bottom paper pulp, before adding implantation site and be the head box that the machine chest that can stir or stream send section, through manufacturing paper with pulp compoundly with sandwich layer, surface layer, form the anti-fake mark that the end (instead) face is uniformly distributed pearlescent pigment.

The pearlescent pigment anti-counterfeiting coating white card paper is mainly used in the anti-counterfeit package of high-grade goods and specialty goods, and as the packing of cigarette, wine, cosmetics etc., the rights and interests with the protection manufacturer, prevent counterfeit goods.The positive printing merchandise news that needs of wrapping pearlescent pigment anti-counterfeiting coating white card paper, the pearlescent pigment anti-counterfeiting mark generally designs at the end of non-printing (instead) face, can adopt the pearlescent pigment of different color effect to the different packings of product.

The present invention has following advantage and effect:

The present invention carries out Chemical Pretreatment to pearlescent pigment, the retention of pearlescent pigment, the cohesive force on surface and dispersiveness and the dispersion stabilization in water have been improved, the pearlescent pigment that relative usage does not deal with, its pearlescent pigment exists the retention in paper can bring up to 72% by 46%; Pearlescent pigment distribution evenness difference is reduced to 30% by 70%; Pearlescent pigment and paper fiber bonding strength are brought up to 0.8m/s by 0.4m/s; Solved that the pearlescent pigment retention is low, skewness and the technical quality problems such as adhesion is poor.

At the bottom of pearlescent pigment anti-counterfeiting coating white card paper of the present invention, (instead) face is uniformly distributed the visible pearlescent pigment of vision, and, according to the different series pearlescent pigment, present pearly-lustre visual effect fragmentarily of all kinds, form false proof special marking, anti-fake mark is obviously attractive in appearance, reaches the anti-fake effect of coated white cardboard.Pearlescent pigment anti-fake mark characteristics: when with the custom angle, observing the paper bottom surface and common paper without any difference, but at inclination angle (when light source equals paper to the angle of reflection of eyes to the incidence angle of paper) while observing, naked eyes can be easy to see pearly-lustre point of scintillation (especially successful under spot light), anti-counterfeiting mark has certain disguise (also easily causing people's curiosity and mystique), does not affect the purity of the original true qualities in page bottom surface; During perusal, along with the variation of angle, different pearlescent pigments can present different colours flicker bright spot, is easy to identification and has again a beautification function; Art post paperboard to the coating of the end (instead) face also can be seen the pearlescent pigment anti-counterfeiting mark by naked eyes; The color effect of pearlescent pigment is produced by its physical arrangement, nontoxic.

The preparation of pearlescent pigment anti-counterfeiting coating white card paper of the present invention is mainly by existing apparatus for coating or surface sizing device or the device of manufacturing paper with pulp in production procedure, only need add one approximately 1 cubic metre of volume there is the preliminary treatment tank of stirring, heating function, anti-counterfeiting technology is simple, with low cost.

The specific embodiment

Below in conjunction with embodiment, the present invention is done to further detailed description, but embodiments of the present invention are not limited to this.If do not specialize, the conventional means that in embodiment, technological means used is well known to those skilled in the art.

The production embodiment of pearlescent pigment anti-counterfeiting coating white card paper of the present invention, to add the commodity pearlescent pigment in the existing coated white cardboard technological process of production, respectively the pearlescent pigment suspension after Chemical Pretreatment is added in coating composition or Cypres or bottom slurry, disperse again pearlescent pigment by the facility in existing procedure, by coating or top sizing or manufacture paper with pulp and realize the technology of the present invention.

Pearlescent pigment exists the measurement of the retention in paper to adopt " mensuration of paper making raw material, paper pulp, paper and cardboard ash content " method, GB/T 742-2008.Pearlescent pigment distribution evenness difference is: the granule number in A4 area sample in the most intensive one square centimeter of pearlescent pigment particle with the most sparse one square centimeter in granule number poor, with respect to the percentage of average grain number of every square centimeter in sample.The measurement of pearlescent pigment and paper fiber bonding strength adopts " mensuration of paper and cardboard printing surface strength " method, GB/T 22365-2008.

Embodiment 1

To the single face coated white cardboard: select approximately 5 microns of pearlescent pigment average grain diameters, the pearlescent pigment consumption is 0.0001g/m 2.Pearlescent pigment Chemical Pretreatment mode is, adds 1.2 parts of 100 parts, water and carboxymethyl celluloses in the preliminary treatment tank by mass fraction, adds 0.02 part of 1 part of pearlescent pigment and sodium phosphate trimer after dispersion to be dissolved, stirring at normal temperature 90 minutes again; The addition manner of pearlescent pigment is will to mix with quantitative Cypres by the pretreated pearlescent pigment suspension of consumption requirement metering, then implement the top sizing to the end (instead) face.Measure of merit: than under junior, the pearlescent pigment molecule bright spot that at the bottom of paper, (instead) face can may be seen indistinctly and be evenly distributed; Pearlescent pigment and paper fiber bonding strength are 0.8m/s.According to the described method of the present embodiment, if pearlescent pigment does not have through Chemical Pretreatment, pearlescent pigment and paper fiber bonding strength are 0.6m/s.

Embodiment 2

To the double spread art post paperboard: select approximately 2000 microns of pearlescent pigment average grain diameters, the pearlescent pigment consumption is 0.2g/m 2.Pearlescent pigment Chemical Pretreatment mode is, adds 1.5 parts of 100 parts, water and quaternary ammonium salt cationic starch in the preliminary treatment tank by mass fraction, is warmed up to 90 ℃ of gelatinizations, adds 0.01 part of 1 part of pearlescent pigment and calgon after gelatinization completes again, and Yu Wen stirs 60 minutes; The addition manner of pearlescent pigment is, pretreated pearlescent pigment suspension by consumption requirement metering is added in bottom slurry machine chest, by the agitator in machine chest, pearlescent pigment is mixed with the bottom slurry, manufacture paper with pulp by papermaking process process and sandwich layer, surface layer more compound, complete production process.Measure of merit: the pearlescent pigment bulky grain bright spot at the bottom of paper on (instead) face is high-visible; Pearlescent pigment average grain number is 7/cm 2; Pearlescent pigment distribution evenness difference is 43%; Pearlescent pigment and paper fiber bonding strength are 0.48m/s; The retention of pearlescent pigment in paper is 72%.According to the described method of the present embodiment, if pearlescent pigment does not have through Chemical Pretreatment, pearlescent pigment average grain number is 6/cm 2; Pearlescent pigment distribution evenness difference is 67%; Pearlescent pigment and paper fiber bonding strength are 0.4m/s; The retention of pearlescent pigment in paper is 61%.

Embodiment 3

To the double spread art post paperboard: select approximately 450 microns of pearlescent pigment average grain diameters, the pearlescent pigment consumption is 0.02g/m 2.Pearlescent pigment Chemical Pretreatment mode is, adds 1 part of 100 parts, water and carboxymethyl cellulose in the preliminary treatment tank by mass fraction, adds 0.01 part of 1 part of pearlescent pigment and calgon after dispersion to be dissolved, stirring at normal temperature 50 minutes again; The addition manner of pearlescent pigment is in the end (instead) face top layer coating composition preparation process, to add the pretreated pearlescent pigment suspension by consumption requirement metering, the preparation end (instead) face top layer coating composition, the coating of the enforcement end (instead) face top layer.Measure of merit: the high-visible pearlescent pigment particle bright spot of (instead) face energy at the bottom of paper; Pearlescent pigment average grain number is 18/cm 2; Pearlescent pigment distribution evenness difference is 33%; Pearlescent pigment and paper fiber bonding strength are 0.7m/s.According to the described method of the present embodiment, if pearlescent pigment does not have through Chemical Pretreatment, pearlescent pigment average grain number is 18/cm 2; Pearlescent pigment distribution evenness difference is 50%; Pearlescent pigment and paper fiber bonding strength are 0.6m/s.

Embodiment 4

To the single face coated white cardboard: select approximately 300 microns of pearlescent pigment average grain diameters, the pearlescent pigment consumption is 0.005g/m 2.Pearlescent pigment Chemical Pretreatment mode is, adds 0.8 part of 100 parts, water and carboxymethyl cellulose in the preliminary treatment tank by mass fraction, adds 0.01 part of 1 part of pearlescent pigment and sodium phosphate trimer after dispersion to be dissolved, stirring at normal temperature 60 minutes again; The addition manner of pearlescent pigment is will to mix with quantitative Cypres by the pretreated pearlescent pigment suspension of consumption requirement metering, then implement the top sizing to the end (instead) face.Measure of merit: at the bottom of paper, (instead) face can be shown in pearlescent pigment particle bright spot clearly; Pearlescent pigment average grain number is 10/cm 2; Pearlescent pigment distribution evenness difference is 30%; Pearlescent pigment and paper fiber bonding strength are 0.7m/s.According to the described method of the present embodiment, if pearlescent pigment does not have through Chemical Pretreatment, pearlescent pigment average grain number is 10/cm 2; Pearlescent pigment distribution evenness difference is 60%; Pearlescent pigment and paper fiber bonding strength are 0.55m/s.

Embodiment 5

To the single face coated white cardboard: select approximately 600 microns of pearlescent pigment average grain diameters, the pearlescent pigment consumption is 0.04g/m 2.Pearlescent pigment Chemical Pretreatment mode is, adds 2 parts of 100 parts, water and quaternary ammonium salt cationic starch in the preliminary treatment tank by mass fraction, is warmed up to 90 ℃ of gelatinizations, adds 0.01 part of 1 part of pearlescent pigment and calgon after gelatinization completes again, and Yu Wen stirs 80 minutes; The addition manner of pearlescent pigment is, pretreated pearlescent pigment suspension by consumption requirement metering is added in bottom slurry machine chest, by the agitator in machine chest, pearlescent pigment is mixed with the bottom slurry, manufacture paper with pulp by papermaking process process and sandwich layer, surface layer more compound, complete production process.Measure of merit: the pearlescent pigment particle bright spot at the bottom of paper on (instead) face is high-visible; Pearlescent pigment average grain number is 9/cm 2; Pearlescent pigment distribution evenness difference is 33%; Pearlescent pigment and paper fiber bonding strength are 0.5m/s; The retention of pearlescent pigment in paper is 70%.According to the described method of the present embodiment, if pearlescent pigment does not have through Chemical Pretreatment, pearlescent pigment average grain number is 6/cm 2; Pearlescent pigment distribution evenness difference is 67%; Pearlescent pigment and paper fiber bonding strength are 0.42m/s; The retention of pearlescent pigment in paper is 48%.

Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.

Claims (7)

1. a pearlescent pigment anti-counterfeiting coating white card paper, it is characterized in that: its bottom surface is uniformly distributed the visible pearlescent pigment of vision.
2. pearlescent pigment anti-counterfeiting coating white card paper according to claim 1, is characterized in that: by changing the kind of pearlescent pigment, can realize different gloss and interference colours.
3. pearlescent pigment anti-counterfeiting coating white card paper according to claim 1, it is characterized in that: content of beary metal requirement in described pearlescent pigment, according to the sanitary standard requirement of coated white cardboard packaging article, adopts the pearlescent pigment of corresponding sanitary standard grade.
4. pearlescent pigment anti-counterfeiting coating white card paper according to claim 1, it is characterized in that: described pearlescent pigment is the optic metachromatic pearlescent pigment.
5. pearlescent pigment anti-counterfeiting coating white card paper according to claim 1, it is characterized in that: the particle size range of described pearlescent pigment is 5～2000 microns; The consumption of described pearlescent pigment is 0.0001～0.2g/m 2.
6. the preparation method of the described pearlescent pigment anti-counterfeiting coating white card paper of claim 1～5 any one, it is characterized in that comprising the steps: to the double spread art post paperboard, take in the top layer coating composition preparation process of bottom surface, the pearlescent pigment of processing with chemical treatments is added in coating composition, operation by coating process is implemented, and makes the coated white cardboard bottom surface form the pearlescent pigment anti-fake mark;
Or, to the single face coated white cardboard, the pearlescent pigment that will process with chemical treatments mixes with Cypres, carry out the top sizing operation in the bottom surface of coated white cardboard, make the coated white cardboard bottom surface form the pearlescent pigment anti-fake mark;
Or to the single face coated white cardboard, the pearlescent pigment that chemical treatments is processed is added in employing in bottom paper pulp, before adding implantation site and be the head box that the machine chest that can stir or stream send section, through manufacturing paper with pulp compoundly with sandwich layer, surface layer, form the anti-fake mark that bottom surface is uniformly distributed pearlescent pigment;
Described chemical treatments comprises calgon, sodium phosphate trimer, carboxymethyl cellulose, quaternary ammonium salt cationic starch.
7. the preparation method of pearlescent pigment anti-counterfeiting coating white card paper according to claim 6, it is characterized in that comprising the steps: to the double spread art post paperboard, adopt in advance calgon and carboxymethyl cellulose to process pearlescent pigment, again in the top layer coating composition preparation process of bottom surface, pretreated pearlescent pigment is added in coating composition, operation by coating process is implemented, and makes the coated white cardboard bottom surface form the pearlescent pigment anti-fake mark;
Or to the single face coated white cardboard, adopt in advance sodium phosphate trimer and carboxymethyl cellulose to process pearlescent pigment, again pretreated pearlescent pigment suspension is mixed with Cypres, the top sizing operation is carried out in bottom surface at coated white cardboard, makes the coated white cardboard bottom surface form the pearlescent pigment anti-fake mark;
Or to the single face coated white cardboard, adopt in advance quaternary ammonium salt cationic starch and calgon to process pearlescent pigment, add again pretreated pearlescent pigment in bottom paper pulp, before adding implantation site and be the head box that the machine chest that can stir or stream send section, through manufacturing paper with pulp compoundly with sandwich layer, surface layer, form the anti-fake mark that bottom surface is uniformly distributed pearlescent pigment.
CN201310483278.4A 2013-10-16 2013-10-16 Anti-counterfeiting pearlescent pigment coated white cardboard and preparation method thereof CN103485236B (en)

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CN201310483278.4A CN103485236B (en) 2013-10-16 2013-10-16 Anti-counterfeiting pearlescent pigment coated white cardboard and preparation method thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104746385A (en) * 2015-02-05 2015-07-01 上海骏源实业股份有限公司 Manufacture method of pearl double-sided color card
CN106364193A (en) * 2016-08-31 2017-02-01 江苏大亚印务有限公司 Metal quality and texture specialty paper printing process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104746385A (en) * 2015-02-05 2015-07-01 上海骏源实业股份有限公司 Manufacture method of pearl double-sided color card
CN106364193A (en) * 2016-08-31 2017-02-01 江苏大亚印务有限公司 Metal quality and texture specialty paper printing process

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