CN108505397A - A kind of photosensitive anti-fake aluminium-foil paper and its preparation process - Google Patents
A kind of photosensitive anti-fake aluminium-foil paper and its preparation process Download PDFInfo
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- CN108505397A CN108505397A CN201810180194.6A CN201810180194A CN108505397A CN 108505397 A CN108505397 A CN 108505397A CN 201810180194 A CN201810180194 A CN 201810180194A CN 108505397 A CN108505397 A CN 108505397A
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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
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- 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
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H17/07—Nitrogen-containing 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
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- 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
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, while the surface of light-sensitive paper glue coats one layer of high temperature resistant waterproof film by thermal spraying；Preparation process is simultaneously：The light-sensitive paper colloid of preparation is uniformly coated on aluminium foil layer surface, then the aluminium-foil paper after coating is placed in drying machine dry, by EVA polymeric material melts, then ethylene glycol is added thereto, after being uniformly mixed the photosensitive colloid surface in aluminium-foil paper is uniformly sprayed by heating spray gun, it is placed on drying in drying machine after spraying, then by calender press polish, obtains orange aluminium-foil paper.The present invention after discarded paper process by will be prepared into light-sensitive paper colloid, light-sensitive paper colloid is coated on aluminium foil layer surface using applicator roll, directly it is prepared into aluminium-foil paper, not only realize the recycling of waste paper, it is recycled simultaneously it is not necessary that waste paper recycling is prepared into paper, the waste paper of recycling is directly prepared into aluminium-foil paper, simplifies production technology.
Description
Technical field
The invention belongs to cigarette material field, it is related to a kind of photosensitive anti-fake aluminium-foil paper and its preparation process.
Background technology
Aluminium-foil paper is mainly used in packaging protection, daily necessities, building as a kind of industry manufacture raw and auxiliary material, product
Deng, the purposes of aluminium-foil paper is very extensive, such as：Inflight meal is packed, common carnivorous packaging, cigarette packaging etc..China's cigarette work
There are one common features for the cigarette aluminum foil paper for being printed on picture and text of industry enterprise production, i.e., no matter its front or back has been imprinted with greatly use
Chinese, the part of the Chinese phonetic alphabet or English printing or full version factory name, some are also printed on logo.If it is special to aim at some brand
Aluminium-foil paper be not only printed on factory's name, be also printed on the title and decorative pattern of the brand, but above-mentioned anti-counterfeiting performance is easy to copy,
So that false smoke is rampant currently on the market, manufacturer and consumer is made to deeply hurt.
Existing aluminium-foil paper is mostly bonded aluminium foil layer and hypothallus by using adhesive, is had plenty of by base
It aluminizes again after the sizing of matter layer surface, either which kind of technical process is required for hypothallus, hypothallus to be generated in preparation process greatly
The industrial wastes of amount not only pollutes environment and needs to consume huge cost in the processing procedure of later stage waste liquid, and makes
Waste of resource and pollution are directly disposed with waste paper later.
Existing aluminium-foil paper also has a surface by being compounded in aluminium foil layer after being mixed paper pulp with adhesive, while in order to
Reach antifalse effect and add different Security elements in paper pulp, paper pulp can not only influence adhesive after directly being mixed with adhesive
Adhesive property, while mixing the uneven paper layer for being easy to cause preparation and being detached from aluminium foil layer in use, and directly exist
It is uneven that the aluminium foil paper layer prepared after Security element is added in paper pulp, paper layer is easy sanding and in turn results in falling for paper scrap, glues
There is certain influence on the surface for being attached to cigarette to health, while Security element bonding is insecure, and replicability is strong, for
The antifalse effect of cigarette is not notable.
Invention content
The purpose of the present invention is to provide a kind of photosensitive anti-fake aluminium-foil paper and its preparation process, by by discarded paper process
After be prepared into light-sensitive paper colloid, light-sensitive paper colloid is coated on aluminium foil layer surface using applicator roll, is directly prepared into aluminium-foil paper, no
It only realizes the recycling of waste paper, while being recycled it is not necessary that waste paper recycling is prepared into paper, directly prepare the waste paper of recycling
At aluminium-foil paper, production technology is simplified, while by the photosensitive colour-changing effect of Isosorbide-5-Nitrae-dihydroxy anthraquinone, the aluminium-foil paper not only prepared
Color is beautiful, and anti-fake purpose may be implemented；Simultaneously the present invention by chemically react prepare light-sensitive paper colloid have compared with
High adhesive property, can be good at realizing compound with aluminium foil layer, and the aluminium-foil paper of preparation is durable, while gelatinization paper pulp
Good fluidity, compared with adding binder directly in paper pulp, the paper layer surface smooth even of preparation, good hand touch；And gelatinization
Paper pulp itself has photosensitive colour-changing performance so that the variation of color can all occur in the section of entire paper layer and surface, it is difficult to realize
The duplication of antifalse effect has very strong anti-counterfeiting performance.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, at the same it is photosensitive
The surface of paper glue coats one layer of high temperature resistant waterproof film by thermal spraying；
The specific preparation process of the light-sensitive paper colloid is as follows：
(1) it takes the waste paper of crushing to be put into the sodium hydroxide solution that mass fraction is 30%, it is anti-to be heated to 50-60 DEG C of stirring
It filters after answering 2h, is dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, the paper pulp after drying is then poured into ethyl alcohol
It is stirred evenly in solution, pulp liquor is made；
(2) potato starch is poured into aqueous solution after stirring and is put into ultrasonic vibration 30-40min in ultrasonic vibration case, so
After be heated to 100-110 DEG C after polyvinyl alcohol be added stir to being completely dissolved to obtain starch complex liquid；
(3) starch complex liquid is placed in 90-95 DEG C of reaction vessel, and pulp liquor and Isosorbide-5-Nitrae-dihydroxy are then added thereto
Base anthraquinone constant temperature is stirring evenly and then adding into formalin, catechol is added after being stirred to react 2-2.5h, reaction 4-5h obtains red
Isosorbide-5-Nitrae-dihydroxy anthraquinone is wrapped up it by color solution, red solution at this time by the effect of the cross-linked polymeric of formaldehyde and polyvinyl alcohol
In so that photosensitizer can not only be uniformly scattered in pulp solution, and can be with paper pulp firm connection, will not be due to length
Time use or external environment influence and cause photosensitive colour-changing behavior disappear；
(4) red solution at 70 DEG C is evaporated to 30-40min postcoolings to room temperature and obtains sticky red light-sensitive paper glue
Body.
Waste paper powder 150-180g is added in step (1) in 1L sodium hydroxide solutions；
Drying paper pulp 420-530g is added in step (1) in 1L ethanol solutions；
Potato starch 270-290g is added in step (2) in 1L water, polyvinyl alcohol 85-90g is added；
The parts by weight of each component are in step (3)：21-25 parts of starch complex liquid, 100 parts of pulp liquor, Isosorbide-5-Nitrae-dihydroxy
0.11-0.14 parts of anthraquinone, 12-14 parts of formalin, 5-8 parts of catechol；
A kind of preparation process of photosensitive anti-fake aluminium-foil paper, specific preparation process are as follows：
(1) it takes the waste paper of crushing to be put into the sodium hydroxide solution that mass fraction is 30%, it is anti-to be heated to 50-60 DEG C of stirring
It filters after answering 2h, is dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, the paper pulp after drying is then poured into ethyl alcohol
It is stirred evenly in solution, pulp liquor is made；Potato starch is poured into aqueous solution after stirring and is put into ultrasound in ultrasonic vibration case
30-40min is shaken, polyvinyl alcohol is added after being then heated to 100-110 DEG C and stirs to being completely dissolved to obtain starch complex liquid；It will
Starch complex liquid is placed in 90-95 DEG C of reaction vessel, and pulp liquor and Isosorbide-5-Nitrae-dihydroxy anthraquinone constant temperature are then added thereto
It is stirring evenly and then adding into formalin, catechol is added after being stirred to react 2-2.5h, reaction 4-5h obtains red solution；It will be red
Color solution evaporates 30-40min postcoolings to room temperature at 70 DEG C and obtains sticky red light-sensitive paper colloid；
(2) light-sensitive paper colloid is uniformly coated on aluminium foil layer surface using applicator roll so that the section of entire paper layer and
The variation of color can all occur in surface, it is difficult to realize the duplication of antifalse effect, there is very strong anti-counterfeiting performance, resin added control to exist
1.8-2.2g/m2, then the aluminium-foil paper after coating is placed on in 80 DEG C of electric heating constant temperature blast drier dry 2-3min, this
When aluminium foil layer surface light-sensitive paper colloid do not dry completely；
(1) EVA polymeric materials are melted at 95-100 DEG C, ethylene glycol is then added thereto, after being uniformly mixed
The photosensitive colloid surface in aluminium-foil paper is uniformly sprayed by heating spray gun, the amount of spraying is controlled in 0.6-0.8g/m2, after spraying
It is placed in 100 DEG C of electric heating constant temperature blast drier dry 15-20s and obtains orange aluminium foil then by calender press polish
Paper；
The mass ratio of EVA polymeric materials and ethylene glycol is 1 in step (3):0.78-0.84.
The aluminium-foil paper is orange under the action of no ultraviolet light, becomes faint yellow under ultraviolet irradiation；The present invention
Advantageous effect：
Light-sensitive paper colloid is coated with by the present invention by will be prepared into light-sensitive paper colloid after discarded paper process, using applicator roll
In aluminium foil layer surface, it is directly prepared into aluminium-foil paper, not only realizes the recycling of waste paper, while it is not necessary that waste paper recycling to be prepared into
Paper recycles, and the waste paper of recycling is directly prepared into aluminium-foil paper, simplifies production technology, while passing through Isosorbide-5-Nitrae-dihydroxy anthraquinone
Photosensitive colour-changing effect, the aluminium-foil paper color not only prepared is beautiful, and anti-fake purpose may be implemented.
The present invention, as light-sensitive material, is orange, ultraviolet light under the action of no ultraviolet light using Isosorbide-5-Nitrae-dihydroxy anthraquinone
Hydrogen ion occurs transfer and becomes 9,10- dihydroxy anthraquinones under illumination, and color also changes faint yellow so that aluminium-foil paper color
It is gorgeous, and anti-fake effect may be implemented.
The present invention compound one layer of high temperature resistant waterproof film on the paper layer of aluminium-foil paper, can not only realize the guarantor to photosensitive false proof layer
Shield acts on, while being prepared by EVA polymeric materials when the high temperature waterproof layer, the good application for not influencing aluminium-foil paper of elasticity, while thoroughly
Bright property is strong, is not influenced on the color permeability of photosensitive layer.
Specific implementation mode
Embodiment 1：
A kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, at the same it is photosensitive
The surface of paper glue coats one layer of high temperature resistant waterproof film by thermal spraying；
The specific preparation process of the photosensitive anti-fake aluminium-foil paper is as follows：
(1) it takes the waste paper that 3kg is crushed to be put into the sodium hydroxide solution that 20L mass fractions are 30%, is heated to 50-60 DEG C
It filters after being stirred to react 2h, is dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, the paper after then drying 2.1kg
Slurry, which pours into 5L ethanol solutions, to stir evenly, and pulp liquor is made；
(2) 2.7kg potato starch is poured into 10L aqueous solutions after stirring and is put into ultrasonic vibration 30- in ultrasonic vibration case
40min is added 850g polyvinyl alcohol and stirs to being completely dissolved to obtain starch complex liquid after being then heated to 100-110 DEG C；
(3) 2.1kg starch complex liquids are placed in 90-95 DEG C of reaction vessel, 10kg paper pulp is then added thereto
Liquid and 11g1,4- dihydroxy anthraquinone constant temperature are stirring evenly and then adding into 1.2kg formalins, are added after being stirred to react 2-2.5h
0.5kg catechols, reaction 4-5h obtain red solution；
(4) red solution at 70 DEG C is evaporated to 30-40min postcoolings to room temperature and obtains sticky red light-sensitive paper glue
Body；
(5) light-sensitive paper colloid is uniformly coated on aluminium foil layer surface using applicator roll, resin added is controlled in 1.8-2.2g/
m2, then the aluminium-foil paper after coating is placed on in 80 DEG C of electric heating constant temperature blast drier dry 2-3min, at this time aluminium foil layer
The light-sensitive paper colloid on surface is not dried completely；
(6) 1kgEVA polymeric materials are melted at 95-100 DEG C, 0.78kg ethylene glycol is then added thereto, stirring is mixed
The photosensitive colloid surface in aluminium-foil paper is uniformly sprayed by heating spray gun after closing uniformly, the amount of spraying is controlled in 0.6-0.8g/
m2, it is placed in 100 DEG C of electric heating constant temperature blast drier dry 15-20s after spraying and is obtained then by calender press polish
Orange aluminium-foil paper.
Embodiment 2：
A kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, at the same it is photosensitive
The surface of paper glue coats one layer of high temperature resistant waterproof film by thermal spraying；
The specific preparation process of the photosensitive anti-fake aluminium-foil paper is as follows：
(1) it takes the waste paper that 3.6kg is crushed to be put into the sodium hydroxide solution that 20L mass fractions are 30%, is heated to 50-60
It filters, is dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, after then drying 2.65kg after DEG C being stirred to react 2h
Paper pulp pour into 5L ethanol solutions and stir evenly, pulp liquor is made；
(2) 2.9kg potato starch is poured into 10L aqueous solutions after stirring and is put into ultrasonic vibration 30- in ultrasonic vibration case
40min is added 900g polyvinyl alcohol and stirs to being completely dissolved to obtain starch complex liquid after being then heated to 100-110 DEG C；
(3) 2.5kg starch complex liquids are placed in 90-95 DEG C of reaction vessel, 10kg paper pulp is then added thereto
Liquid and 14g1,4- dihydroxy anthraquinone constant temperature are stirring evenly and then adding into 1.4kg formalins, are added after being stirred to react 2-2.5h
0.84kg catechols, reaction 4-5h obtain red solution；
(4) red solution at 70 DEG C is evaporated to 30-40min postcoolings to room temperature and obtains sticky red light-sensitive paper glue
Body；
(5) light-sensitive paper colloid is uniformly coated on aluminium foil layer surface using applicator roll, resin added is controlled in 1.8-2.2g/
m2, then the aluminium-foil paper after coating is placed on in 80 DEG C of electric heating constant temperature blast drier dry 2-3min, at this time aluminium foil layer
The light-sensitive paper colloid on surface is not dried completely；
(6) 1kgEVA polymeric materials are melted at 95-100 DEG C, 0.78kg ethylene glycol is then added thereto, stirring is mixed
The photosensitive colloid surface in aluminium-foil paper is uniformly sprayed by heating spray gun after closing uniformly, the amount of spraying is controlled in 0.6-0.8g/
m2, it is placed in 100 DEG C of electric heating constant temperature blast drier dry 15-20s after spraying and is obtained then by calender press polish
Orange aluminium-foil paper.
Comparative example 1：
A kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, it is described photosensitive
The preparation of paper colloid and coating process are same as Example 1.
Comparative example 2：
A kind of photosensitive anti-fake aluminium-foil paper, including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface, at the same it is photosensitive
The surface of paper glue coats one layer of high temperature resistant waterproof film by thermal spraying；
The specific preparation process of the photosensitive anti-fake aluminium-foil paper is as follows：
(1) it takes the waste paper that 3kg is crushed to be put into the sodium hydroxide solution that 20L mass fractions are 30%, is heated to 50-60 DEG C
It filters after being stirred to react 2h, is dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, the paper after then drying 2.1kg
Slurry, which pours into 5L ethanol solutions, to stir evenly, and pulp liquor is made；
(2) 2.7kg potato starch is poured into 10L aqueous solutions after stirring and is put into ultrasonic vibration 30- in ultrasonic vibration case
40min is added 850g polyvinyl alcohol and stirs to being completely dissolved to obtain starch complex liquid after being then heated to 100-110 DEG C；
(3) 2.1kg starch complex liquids are placed in 90-95 DEG C of reaction vessel, 10kg paper pulp is then added thereto
Liquid and 11g1,4- dihydroxy anthraquinone constant temperature are stirring evenly and then adding into 1.2kg formalins, are added after being stirred to react 2-2.5h
0.5kg catechols, reaction 4-5h obtain red solution；
(4) red solution at 70 DEG C is evaporated to 30-40min postcoolings to room temperature and obtains sticky red light-sensitive paper glue
Body；
(5) light-sensitive paper colloid is uniformly coated on aluminium foil layer surface using applicator roll, resin added is controlled in 1.8-2.2g/
m2, then the aluminium-foil paper after coating is placed on in 80 DEG C of electric heating constant temperature blast drier dry 2-3min, at this time aluminium foil layer
The light-sensitive paper colloid on surface is not dried completely；
(6) after melting paraffin at 75-80 DEG C the light-sensitive emulsion body surface in aluminium-foil paper is uniformly sprayed by heating spray gun
The amount in face, spraying is controlled in 0.6-0.8g/m2, dry 15- is placed in 100 DEG C of electric heating constant temperature blast drier after spraying
20s obtains aluminium-foil paper then by calender press polish.
The aluminium-foil paper prepared in embodiment 1-2 and comparative example 1-2 is subjected to color change and water resistance test, it is specific real
The process of testing is：The aluminium-foil paper prepared in embodiment 1-2 and comparative example 1-2 is respectively placed in the change that color is observed under ultraviolet lamp
Change, then four kinds of aluminium-foil papers are soaked in respectively in water and are taken out after 1h, the breakage of aluminium-foil paper is observed, then drying is positioned over
The variation of color is observed under ultraviolet lamp, the results are shown in Table 1：
1 aluminium-foil paper color change of table and water resistance test result
As shown in Table 1, color becomes light yellow to the aluminium-foil paper of preparation from orange under ultraviolet light, while in water after immersion
It remains to realize photosensitive colour-changing, and bright colors, but it is general that EVA polymeric materials are replaced with to the aluminium-foil paper color prepared after paraffin
White smear, and in no high temperature resistant waterproof film, although without the aluminium foil after damaged impregnate when aluminium-foil paper impregnates in water
Paper fogs in color under ultraviolet light, and the aluminium-foil paper that thus prepared by technique of the invention is not only bright in luster and in ultraviolet light
Bright colors while color change under irradiation, while photosensitizing effect is still constant after immersion in water, has good waterproof
Effect.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably explain the present invention
Principle and practical application, to enable skilled artisan to be best understood by and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. a kind of photosensitive anti-fake aluminium-foil paper, which is characterized in that including aluminium foil layer and the light-sensitive paper colloid for being compounded in aluminium foil layer surface,
The surface of light-sensitive paper glue coats one layer of high temperature resistant waterproof film by thermal spraying simultaneously；
The specific preparation process of the light-sensitive paper colloid is as follows：
(1) it takes the waste paper of crushing to be put into the sodium hydroxide solution that mass fraction is 30%, is heated to 50-60 DEG C and is stirred to react 2h
After filter, dried after being washed with distilled water successively after being washed till neutrality with hydrochloric acid, the paper pulp after drying then poured into ethanol solution
In stir evenly, be made pulp liquor；
(2) potato starch is poured into aqueous solution after stirring and is put into ultrasonic vibration 30-40min in ultrasonic vibration case, then added
Heat is stirred to polyvinyl alcohol is added after 100-110 DEG C to being completely dissolved to obtain starch complex liquid；
(3) starch complex liquid is placed in 90-95 DEG C of reaction vessel, and pulp liquor and Isosorbide-5-Nitrae-dihydroxy-anthracene are then added thereto
Quinone constant temperature is stirring evenly and then adding into formalin, catechol is added after being stirred to react 2-2.5h, reaction 4-5h obtains red molten
Liquid；
(4) red solution at 70 DEG C is evaporated to 30-40min postcoolings to room temperature and obtains sticky red light-sensitive paper colloid.
2. a kind of photosensitive anti-fake aluminium-foil paper according to claim 1, which is characterized in that 1L sodium hydroxides are molten in step (1)
Waste paper powder 150-180g is added in liquid.
3. a kind of photosensitive anti-fake aluminium-foil paper according to claim 1, which is characterized in that in step (1) in 1L ethanol solutions
Drying paper pulp 420-530g is added.
4. a kind of photosensitive anti-fake aluminium-foil paper according to claim 1, which is characterized in that horse is added in 1L water in step (2)
Polyvinyl alcohol 85-90g is added in bell sweet potato starch 270-290g.
5. a kind of photosensitive anti-fake aluminium-foil paper according to claim 1, which is characterized in that the weight of each component in step (3)
Number is：21-25 parts of starch complex liquid, 100 parts of pulp liquor, Isosorbide-5-Nitrae -0.11-0.14 parts of dihydroxy anthraquinone, formalin 12-14
Part, 5-8 parts of catechol.
6. a kind of preparation process of photosensitive anti-fake aluminium-foil paper according to claim 1, which is characterized in that specific preparation process
It is as follows：
(1) the light-sensitive paper colloid of preparation is uniformly coated on aluminium foil layer surface using applicator roll, resin added is controlled in 1.8-
2.2g/m2, then the aluminium-foil paper after coating is placed on in 80 DEG C of electric heating constant temperature blast drier dry 2-3min, at this time aluminium
The light-sensitive paper colloid on layers of foil surface is not dried completely；
(2) EVA polymeric materials are melted at 95-100 DEG C, ethylene glycol is then added thereto, passed through after being uniformly mixed
Hot melt spray gun uniformly sprays the photosensitive colloid surface in aluminium-foil paper, and the amount of spraying is controlled in 0.6-0.8g/m2, placed after spraying
Dry 15-20s obtains orange aluminium-foil paper then by calender press polish in 100 DEG C of electric heating constant temperature blast drier.
7. a kind of preparation process of photosensitive anti-fake aluminium-foil paper according to claim 6, which is characterized in that EVA in step (2)
The mass ratio of polymeric material and ethylene glycol is 1:0.78-0.84.
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| CN108505397B (en) | 2020-06-02 |
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