CN109629341A - Sun-proof antibacterial heat-sensitive paper of one kind and preparation method thereof - Google Patents
Sun-proof antibacterial heat-sensitive paper of one kind and preparation method thereof Download PDFInfo
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- CN109629341A CN109629341A CN201910069534.2A CN201910069534A CN109629341A CN 109629341 A CN109629341 A CN 109629341A CN 201910069534 A CN201910069534 A CN 201910069534A CN 109629341 A CN109629341 A CN 109629341A
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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
- D21H27/30—Multi-ply
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- 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
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
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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
- 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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
The invention discloses a kind of sun-proof antibacterial heat-sensitive papers, its key points of the technical solution are that, including original paper layer, heat-sensitive variable colour layer and protective layer, the heat-sensitive variable colour layer clamped between original paper layer and protective layer, the tow sides of the original paper layer are provided with sun-proof antibacterial layer；The sun-proof antibacterial layer including the following raw material by weight by being prepared, 80-100 parts of esters of acrylic acid adhesive, 30-40 parts of nano inorganic filler, 50-60 parts of organic solvent, 5-8 parts of sun-screening agent, 1-5 parts of extract solution from aloe, 1-5 parts of antioxidant, 1-3 parts of beeswax；The solvent selection can dissolve the organic solvent of beeswax.Heat-sensitive paper of the invention has that light resistance is good, color is lasting, biocidal property is excellent, applicability is wide advantage after colour developing.The present invention further correspondingly discloses a kind of preparation method of above-mentioned heat-sensitive paper.
Description
Technical field
The present invention relates to heat-sensitive paper and its preparation technical fields, more specifically, it relates to a kind of sun-proof antibacterial heat-sensitive paper
And preparation method thereof.
Background technique
Heat-sensitive paper is otherwise known as thermal fax paper, electrothermal sensitive recording paper, thermography paper, is then called sensible heat manifolding in Taiwan
Paper.Heat-sensitive paper is a kind of processing paper, and manufacturing theory is exactly one layer of " thermo colour " (heat-sensitive variable colour of coating on good body paper
Layer), by thermal printing " thermo colour " is developed the color, forms text or pattern.
Authorization Notice No. is that CN203487413U discloses a kind of heat-sensitive paper in the prior art, including body paper and coated on should
The positive heat susceptible coating of body paper, the reverse side of body paper, which is uniformly cast, is coated with dope layer, allows to positive and negative printing.
But there are Universal Problems existing for most of thermal printing papers for this kind of heat-sensitive paper: color fastness is bad.Nothing
By being to store the solarization of transportational process or print the solarization after colour developing, it is be easy to cause the unintelligible or COLOR FASTNESS PROBLEM that develops the color, is made
The use for obtaining this kind of heat-sensitive paper is limited.On the other hand, heat-sensitive paper is plant fiber products, and is typically used to supermarket's receipt and beats
The strong paper of circulation property such as print, ticket printing, the heat-sensitive paper after dampness easily become the breeding ground of bacteria breed, in use
It is easy to the medium as spread of germs.Thus public arena, such as the printing of supermarket's receipt, bus ticket printing are used for for some
Heat-sensitive paper generally require to have the function that certain bacteriological protection is bred, to reduce the growth of the bacterium in storage, use process.
Regarding to the issue above the present invention is intended to provide a kind of sun-proof antibacterial heat-sensitive paper and preparation method thereof.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of sun-proof antibacterial heat-sensitive paper, have
The advantage that light resistance is good, color is lasting, biocidal property is excellent, applicability is wide after colour developing.
To achieve the above object, the present invention provides the following technical scheme that
A kind of sun-proof antibacterial heat-sensitive paper, including original paper layer, heat-sensitive variable colour layer and protective layer, the heat-sensitive variable colour layer are clamped in original
Between paper layer and protective layer, the tow sides of the original paper layer are provided with sun-proof antibacterial layer；The sun-proof antibacterial layer is by including
The following raw material by weight is prepared,
80-100 parts of esters of acrylic acid adhesive
30-40 parts of nano inorganic filler
50-60 parts of organic solvent
5-8 parts of sun-screening agent
1-5 parts of extract solution from aloe
1-5 parts of antioxidant
1-3 parts of beeswax；
The solvent selection can dissolve the organic solvent of beeswax.
By using above-mentioned technical proposal, sun-proof antibacterial layer significant increase is set by the original paper layer tow sides of heat-sensitive paper
The sun-proof stability and biocidal property of heat-sensitive paper, so that caused by heat-sensitive paper is not easy because of solarization in storage, transportational process after printing
Develop the color it is unintelligible perhaps fade and meanwhile be not easy to breed bacterium in storage or use process, be suitable as bus ticket printing
There are the paper products of circulation property extensively with paper, supermarket's receipt print paper etc..The sun-proof bacteria resistance function of heat-sensitive paper of the present invention is main
From sun-proof antibacterial layer: 1, not only the attachment fastness on original paper layer is high for suitable nano inorganic filler, while having good
Sun-proof performance；2, containing natural sun-proof ingredient in extract solution from aloe, conducive to thermo colour in holding heat-sensitive paper not by solarization
It influences, keeps permanent stability, while aloe extracting solution also contains bactericidal antiphlogistic ingredient, have for the growth of bacterium
Inhibiting effect；3, on the one hand sun-screening agent and antioxidant have and extract solution from aloe are protected not to be destroyed in heat-sensitive paper preparation process
Effect, on the other hand can be cooperateed with extract solution from aloe play the role of it is sun-proof, promoted heat-sensitive paper sun-proof stability；4, on
The beeswax for stating volume can be reduced prepare heat-sensitive paper during extract solution from aloe, sun-proof dose, the loss of antioxidant, on the other hand may be used
To promote the waterproofness of original paper layer, natural antipathogenic composition is furthermore also contained in beeswax, conducive to the bacteriostasis for promoting heat-sensitive paper.
Although sun-proof antibacterial layer is between heat-sensitive variable colour layer and original paper layer in the present invention, due to heat-sensitive variable colour layer and sun-proof antibacterial
Layer it is relatively thin, after preparation each other dissolve each other there are a degree of, while sun-proof dose, antioxidant, aloe extract in it is effective
There is the diffusions of a degree of heat sensitive photochromic layer for ingredient, thus do not interfere sun-proof, the bacteriostasis of sun-proof antibacterial layer
Performance.
Further, the nano inorganic filler is that nano silica, nano zine oxide and nano-titanium dioxide press matter
The ratio than 1:0.5:0.5 is measured to mix.
By using above-mentioned technical proposal, nano silica, nano zine oxide and nano-titanium dioxide are all had well
Sun-resistant performance, and the surface of original paper layer have splendid attachment fastness.In addition, the high adsorption of nano silica,
Extract solution from aloe, sun-proof dose and antioxygen agent molecule is enabled to be adsorbed, thus slow release, so that heat-sensitive paper has for a long time
Sun-proof bacteriostasis property.
Further, the organic solvent is acetone.
By using above-mentioned technical proposal, acetone has good dissolubility to beeswax, and easily removes.
Further, the sun-screening agent is double ethyl hexyl oxy phenol anisyl triazines.
By using above-mentioned technical proposal, double ethyl hexyl oxy phenol anisyl triazines have high-fire resistance and extremely strong purple
Outside line absorbability can effectively promote the sun-proof performance of heat-sensitive paper so that heat-sensitive paper be not easy to develop the color caused by because of solarization it is unclear
Or COLOR FASTNESS PROBLEM.
Further, the antioxidant is antioxidant BHT.
By using above-mentioned technical proposal, antioxidant BHT is a kind of safety antioxidant that can be used for food processing, can be had
Effect plays the role of delaying other substance deterioration by oxidations, increases heat-sensitive paper to the tolerance performance of external heat source and solarization.
Another object of the present invention is to provide a kind of preparation methods of sun-proof antibacterial heat-sensitive paper, using made from this method
Heat-sensitive paper has that light resistance is good, color is lasting, biocidal property is excellent, applicability is wide advantage after colour developing.
To achieve the above object, the present invention provides the following technical scheme that
A kind of preparation method of sun-proof antibacterial heat-sensitive paper as described in any one of the above embodiments, it is characterised in that: include the following steps,
Beeswax predissolve: weighing beeswax and organic solvent mixing in proportion, and stirring to beeswax is completely dissolved to obtain beeswax solution；
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant and nano inorganic filler are weighed in proportion and is uniformly mixed；With
Afterwards, sequentially add in order preparation beeswax solution and sun-proof dose, continue stirring to be uniformly mixed to obtain mixture；
Solvent removal: it using the solvent in reduction vaporization method removal mixture, is sieved after grinding, it is spare to obtain sun-proof antibacterial material；
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed, after mixing evenly with weighed esters of acrylic acid adhesive in proportion
Original paper layer tow sides are evenly applied to, sun-proof antibacterial layer is formed；
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, forms temperature-sensitive
Photochromic layer；
Protective layer setting: it completes to cover laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product.
By using above-mentioned technical proposal, beeswax can select beeswax powder, since its is not soluble in water, thus need first
It is dissolved with organic solvent；The preparation of sun-proof antibacterial material is completed in a high speed mixer, nano inorganic filler first is added, aloe mentions
Take liquid and antioxidant, be sufficiently mixed and enable nano inorganic filler uniform adsorption extract solution from aloe and antioxidant, during this by
The destruction of sun-proof effective bacteriostatic ingredients in extract solution from aloe can be reduced in the addition of antioxidant；Then, it is molten to continuously add beeswax
Liquid and sun-proof dose continues to mix, and enable nano inorganic filler uniform adsorption beeswax solution and sun-proof dose, obtain mixture；Mixing
Material needs to remove before use organic solvent, grinds re-sieving, the sun-proof antibacterial material particle guaranteed is fine and closely woven uniformly, after being conducive to
Continuous step is evenly dispersed, and is firmly attached to body paper layer surface；Esters of acrylic acid adhesive has water solubility, is easy to make nanometer nothing
The dispersion of machine uniform filling, can be firmly attached to original paper layer and form sun-proof antibacterial layer after coating；Finally, made of paper using conventional thermal
Thermo colour is coated on sun-proof antibacterial layer and forms heat-sensitive variable colour layer by standby technique, and protective layer is then covered on heat-sensitive variable colour layer i.e.
There must be the heat-sensitive paper of sun-proof antagonistic property.
Further, the sun-proof antibacterial material preparation step is completed in a high speed mixer, and control turns in mixing process
Speed is 3000-5000rpm.
By using above-mentioned technical proposal, it can utmostly shorten material incorporation time, so that each component is sufficiently mixed
It is even.
Further, the extract solution from aloe is prepared via following technique,
Step 1: being smashed to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 1.0-3.0mol/L is added, stirs evenly
Mixture；
Step 2: heat preservation extraction 30-45min under the conditions of mixture obtained by step 1 is placed in 28-35 DEG C is filtered after heat preservation
Obtain extract liquor；
Step 3: being added the active carbon powder for accounting for extract liquor 1-5wt% in the extract liquor obtained by the step 2, after ultrasonic 10-15min,
Filter extract solution from aloe is spare.
By using above-mentioned technical proposal, via work sun-proof, antipathogenic composition in extract solution from aloe made from above-mentioned technique
Performance is utmostly retained, while reducing phytochrome and solid impurity after active carbon is handled, so that aloe is made
Extracting solution is pure, will not influence the color of paper or forms fault.Aloe extraction can also be carried out as needed appropriate dense
Contracting, to reduce the content of moisture in extracting solution.
In conclusion the invention has the following advantages:
The sun-proof steady of sun-proof antibacterial layer significant increase heat-sensitive paper is arranged by the original paper layer tow sides in heat-sensitive paper in the present invention
Qualitative and biocidal property, so that developing the color unintelligible after being printed caused by heat-sensitive paper is not easy because of solarization in storage, transportational process or taking off
Color, while being not easy to breed bacterium in storage or use process, it is suitable as bus ticket print paper, the printing of supermarket's receipt
There are the paper products of circulation property extensively with paper etc..
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of sun-proof antibacterial heat-sensitive paper in embodiment；
Fig. 2 is the preparation technology flow chart of extract solution from aloe in embodiment.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1:
A kind of sun-proof antibacterial heat-sensitive paper comprising be successively bonded the protective layer, heat-sensitive variable colour layer, sun-proof antibacterial layer, body paper of setting
Layer, sun-proof antibacterial layer, heat-sensitive variable colour layer and protective layer, two sides are printable.Protective layer is laminated polyester film, heat-sensitive variable colour layer
It is coated by thermo colour using conventional coating processes.In order to promote the light resistance after the storage stability of heat-sensitive paper, colour developing
And bacteriostasis property, sun-proof antibacterial layer between heat-sensitive variable colour layer and original paper layer is clamped by including the raw material matched as follows
It forms: esters of acrylic acid adhesive 800g, nano silica 150g, nano zine oxide 75g, nano-titanium dioxide 75g, acetone
500g, double ethyl hexyl oxy phenol anisyl triazine 50g, extract solution from aloe 10g, antioxidant BHT 10g, beeswax 10g.
As shown in Figure 1, specific heat-sensitive paper preparation process includes the following steps,
Beeswax predissolve: beeswax and acetone is taken to mix according to said ratio, stirring to beeswax is completely dissolved to obtain beeswax solution；In order to
The dissolution for accelerating beeswax, can be in advance by beeswax grind into powder state.
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant BHT, nano silica, nanometer are weighed according to the above ratio
Zinc oxide and nano-titanium dioxide are added to high-speed mixer, are uniformly mixed with the revolving speed of 3000rpm；Then, by suitable
Sequence sequentially adds the beeswax solution and double ethyl hexyl oxy phenol anisyl triazines of preparation, continues stirring to uniformly mixed to obtain mixing
Material；
Wherein, extract solution from aloe used is prepared using technique as shown in Figure 2,
Step 1: smashing to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 1.0mol/L is added, stirs evenly to obtain mixing
Object；
Step 2: heat preservation extraction 45min under the conditions of mixture obtained by step 1 is placed in 28 DEG C filters to obtain extraction after heat preservation
Liquid；
Step 3: being added the active carbon powder for accounting for extract liquor 1wt% in the extract liquor obtained by the step 2, after ultrasonic 10min, filtering
It is spare to obtain extract solution from aloe.
Solvent removal: using the acetone in reduction vaporization method removal mixture, 400 meshes are crossed after grinding, are obtained sun-proof antibacterial
Expect spare.
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed with weighed esters of acrylic acid adhesive in proportion, is stirred
It is evenly applied to original paper layer tow sides after even, forms sun-proof antibacterial layer after the solidification of esters of acrylic acid adhesive.
The coating of thermo colour layer: thermo colour is uniformly coated in the body paper layer surface for being coated with sun-proof antibacterial layer, forms heat
Quick photochromic layer；The processing method of heat-sensitive variable colour layer coats processing using conventional thermo colour coating processes.
Protective layer setting: it completes to cover one layer of laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product
Sun-proof antibacterial heat-sensitive paper.
Embodiment 2:
A kind of sun-proof antibacterial heat-sensitive paper comprising be successively bonded the protective layer, heat-sensitive variable colour layer, sun-proof antibacterial layer, body paper of setting
Layer, sun-proof antibacterial layer, heat-sensitive variable colour layer and protective layer, two sides are printable.Protective layer is laminated polyester film, heat-sensitive variable colour layer by
Thermo colour is coated using conventional coating processes.In order to promoted the light resistance after the storage stability of heat-sensitive paper, colour developing and
Bacteriostasis property, clamped sun-proof antibacterial layer between heat-sensitive variable colour layer and original paper layer by including the raw material matched as follows and
At: esters of acrylic acid adhesive 850g, nano silica 160g, nano zine oxide 80g, nano-titanium dioxide 80g, acetone
520g, double ethyl hexyl oxy phenol anisyl triazine 55g, extract solution from aloe 20g, antioxidant BHT 20g, beeswax 15g.
As shown in Figure 1, specific heat-sensitive paper preparation process includes the following steps,
Beeswax predissolve: beeswax and acetone is taken to mix according to said ratio, stirring to beeswax is completely dissolved to obtain beeswax solution；In order to
The dissolution for accelerating beeswax, can be in advance by beeswax grind into powder state.
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant BHT, nano silica, nanometer are weighed according to the above ratio
Zinc oxide and nano-titanium dioxide are added to high-speed mixer, are uniformly mixed with the revolving speed of 3500rpm；Then, by suitable
Sequence sequentially adds the beeswax solution and double ethyl hexyl oxy phenol anisyl triazines of preparation, continues stirring to uniformly mixed to obtain mixing
Material；
Wherein, extract solution from aloe used is prepared using technique as shown in Figure 2,
Step 1: smashing to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 1.5mol/L is added, stirs evenly to obtain mixing
Object；
Step 2: heat preservation extraction 45min under the conditions of mixture obtained by step 1 is placed in 28 DEG C filters to obtain extraction after heat preservation
Liquid；
Step 3: being added the active carbon powder for accounting for extract liquor 2wt% in the extract liquor obtained by the step 2, after ultrasonic 10min, filtering
It is spare to obtain extract solution from aloe.
Solvent removal: using the acetone in reduction vaporization method removal mixture, 400 meshes are crossed after grinding, are obtained sun-proof antibacterial
Expect spare.
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed with weighed esters of acrylic acid adhesive in proportion, is stirred
It is evenly applied to original paper layer tow sides after even, forms sun-proof antibacterial layer after the solidification of esters of acrylic acid adhesive.
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, is formed
Heat-sensitive variable colour layer；The processing method of heat-sensitive variable colour layer coats processing using conventional thermo colour coating processes.
Protective layer setting: it completes to cover one layer of laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product
Sun-proof antibacterial heat-sensitive paper.
Embodiment 3:
A kind of sun-proof antibacterial heat-sensitive paper comprising be successively bonded the protective layer, heat-sensitive variable colour layer, sun-proof antibacterial layer, body paper of setting
Layer, sun-proof antibacterial layer, heat-sensitive variable colour layer and protective layer, two sides are printable.Protective layer is laminated polyester film, heat-sensitive variable colour layer by
Thermo colour is coated using conventional coating processes.In order to promoted the light resistance after the storage stability of heat-sensitive paper, colour developing and
Bacteriostasis property, clamped sun-proof antibacterial layer between heat-sensitive variable colour layer and original paper layer by including the raw material matched as follows and
At: esters of acrylic acid adhesive 900g, nano silica 180g, nano zine oxide 90g, nano-titanium dioxide 90g, acetone
560g, double ethyl hexyl oxy phenol anisyl triazin-6 5g, extract solution from aloe 30g, antioxidant BHT 30g, beeswax 20g.
As shown in Figure 1, specific heat-sensitive paper preparation process includes the following steps,
Beeswax predissolve: beeswax and acetone is taken to mix according to said ratio, stirring to beeswax is completely dissolved to obtain beeswax solution；In order to
The dissolution for accelerating beeswax, can be in advance by beeswax grind into powder state.
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant BHT, nano silica, nanometer are weighed according to the above ratio
Zinc oxide and nano-titanium dioxide are added to high-speed mixer, are uniformly mixed with the revolving speed of 4000rpm；Then, by suitable
Sequence sequentially adds the beeswax solution and double ethyl hexyl oxy phenol anisyl triazines of preparation, continues stirring to uniformly mixed to obtain mixing
Material；
Wherein, extract solution from aloe used is prepared using technique as shown in Figure 2,
Step 1: smashing to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 2.0mol/L is added, stirs evenly to obtain mixing
Object；
Step 2: heat preservation extraction 40min under the conditions of mixture obtained by step 1 is placed in 30 DEG C filters to obtain extraction after heat preservation
Liquid；
Step 3: being added the active carbon powder for accounting for extract liquor 3wt% in the extract liquor obtained by the step 2, after ultrasonic 13min, filtering
It is spare to obtain extract solution from aloe.
Solvent removal: using the acetone in reduction vaporization method removal mixture, 400 meshes are crossed after grinding, are obtained sun-proof antibacterial
Expect spare.
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed with weighed esters of acrylic acid adhesive in proportion, is stirred
It is evenly applied to original paper layer tow sides after even, forms sun-proof antibacterial layer after the solidification of esters of acrylic acid adhesive.
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, is formed
Heat-sensitive variable colour layer；The processing method of heat-sensitive variable colour layer coats processing using conventional thermo colour coating processes.
Protective layer setting: it completes to cover one layer of laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product
Sun-proof antibacterial heat-sensitive paper.
Embodiment 4:
A kind of sun-proof antibacterial heat-sensitive paper comprising be successively bonded the protective layer, heat-sensitive variable colour layer, sun-proof antibacterial layer, body paper of setting
Layer, sun-proof antibacterial layer, heat-sensitive variable colour layer and protective layer, two sides are printable.Protective layer is laminated polyester film, heat-sensitive variable colour layer by
Thermo colour is coated using conventional coating processes.In order to promoted the light resistance after the storage stability of heat-sensitive paper, colour developing and
Bacteriostasis property, clamped sun-proof antibacterial layer between heat-sensitive variable colour layer and original paper layer by including the raw material matched as follows and
At: esters of acrylic acid adhesive 950g, nano silica 190g, nano zine oxide 95g, nano-titanium dioxide 95g, acetone
580g, double ethyl hexyl oxy phenol anisyl triazine 75g, extract solution from aloe 40g, antioxidant BHT 40g, beeswax 25g.
As shown in Figure 1, specific heat-sensitive paper preparation process includes the following steps,
Beeswax predissolve: beeswax and acetone is taken to mix according to said ratio, stirring to beeswax is completely dissolved to obtain beeswax solution；In order to
The dissolution for accelerating beeswax, can be in advance by beeswax grind into powder state.
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant BHT, nano silica, nanometer are weighed according to the above ratio
Zinc oxide and nano-titanium dioxide are added to high-speed mixer, are uniformly mixed with the revolving speed of 4500rpm；Then, by suitable
Sequence sequentially adds the beeswax solution and double ethyl hexyl oxy phenol anisyl triazines of preparation, continues stirring to uniformly mixed to obtain mixing
Material；
Wherein, extract solution from aloe used is prepared using technique as shown in Figure 2,
Step 1: smashing to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 2.5mol/L is added, stirs evenly to obtain mixing
Object；
Step 2: heat preservation extraction 40min under the conditions of mixture obtained by step 1 is placed in 30 DEG C filters to obtain extraction after heat preservation
Liquid；
Step 3: being added the active carbon powder for accounting for extract liquor 4wt% in the extract liquor obtained by the step 2, after ultrasonic 13min, filtering
It is spare to obtain extract solution from aloe.
Solvent removal: using the acetone in reduction vaporization method removal mixture, 400 meshes are crossed after grinding, are obtained sun-proof antibacterial
Expect spare.
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed with weighed esters of acrylic acid adhesive in proportion, is stirred
It is evenly applied to original paper layer tow sides after even, forms sun-proof antibacterial layer after the solidification of esters of acrylic acid adhesive.
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, is formed
Heat-sensitive variable colour layer；The processing method of heat-sensitive variable colour layer coats processing using conventional thermo colour coating processes.
Protective layer setting: it completes to cover one layer of laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product
Sun-proof antibacterial heat-sensitive paper.
Embodiment 5:
A kind of sun-proof antibacterial heat-sensitive paper comprising be successively bonded the protective layer, heat-sensitive variable colour layer, sun-proof antibacterial layer, body paper of setting
Layer, sun-proof antibacterial layer, heat-sensitive variable colour layer and protective layer, two sides are printable.Protective layer is laminated polyester film, heat-sensitive variable colour layer by
Thermo colour is coated using conventional coating processes.In order to promoted the light resistance after the storage stability of heat-sensitive paper, colour developing and
Bacteriostasis property, clamped sun-proof antibacterial layer between heat-sensitive variable colour layer and original paper layer by including the raw material matched as follows and
At: esters of acrylic acid adhesive 1000g, nano silica 200g, nano zine oxide 100g, nano-titanium dioxide 100g, third
Ketone 600g, double ethyl hexyl oxy phenol anisyl triazine 80g, extract solution from aloe 50g, antioxidant BHT 50g, beeswax 30g.
As shown in Figure 1, specific heat-sensitive paper preparation process includes the following steps,
Beeswax predissolve: beeswax and acetone is taken to mix according to said ratio, stirring to beeswax is completely dissolved to obtain beeswax solution；In order to
The dissolution for accelerating beeswax, can be in advance by beeswax grind into powder state.
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant BHT, nano silica, nanometer are weighed according to the above ratio
Zinc oxide and nano-titanium dioxide are added to high-speed mixer, are uniformly mixed with the revolving speed of 5000rpm；Then, by suitable
Sequence sequentially adds the beeswax solution and double ethyl hexyl oxy phenol anisyl triazines of preparation, continues stirring to uniformly mixed to obtain mixing
Material；
Wherein, extract solution from aloe used is prepared using technique as shown in Figure 2,
Step 1: smashing to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 3.0mol/L is added, stirs evenly to obtain mixing
Object；
Step 2: heat preservation extraction 30min under the conditions of mixture obtained by step 1 is placed in 35 DEG C filters to obtain extraction after heat preservation
Liquid；
Step 3: being added the active carbon powder for accounting for extract liquor 5wt% in the extract liquor obtained by the step 2, after ultrasonic 15min, filtering
It is spare to obtain extract solution from aloe.
Solvent removal: using the acetone in reduction vaporization method removal mixture, 400 meshes are crossed after grinding, are obtained sun-proof antibacterial
Expect spare.
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed with weighed esters of acrylic acid adhesive in proportion, is stirred
It is evenly applied to original paper layer tow sides after even, forms sun-proof antibacterial layer after the solidification of esters of acrylic acid adhesive.
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, is formed
Heat-sensitive variable colour layer；The processing method of heat-sensitive variable colour layer coats processing using conventional thermo colour coating processes.
Protective layer setting: it completes to cover one layer of laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats to obtain the final product
Sun-proof antibacterial heat-sensitive paper.
Reference examples:
A kind of heat-sensitive paper, the difference with embodiment 5 are only that: not including sun-proof antibacterial layer.
Performance test
Light resistance test: respectively using embodiment 1-5 and the heat-sensitive paper of reference examples as laboratory sample, every group of laboratory sample be divided into A, B,
Tri- groups of C, different disposal is carried out respectively.
A, it with no treatment, is directly used in printing, the character pattern color of printing is observed under D65 light source；
B, it with after the ultraviolet light irradiation 1h of 200W, is printed, the character pattern color of printing is observed under D65 light source；
C, after printing, after the ultraviolet light irradiation 1h of 200W, the character pattern color of printing is observed under D65 light source；
Tonal gradation (1-9 grades) are determined to by the color of three groups of laboratory samples of same sample and standard color card comparison.
Biocidal property test: respectively using embodiment 1-5 and the heat-sensitive paper of reference examples as laboratory sample, every group of laboratory sample is divided into
Two two groups of D, E, D group is placed in closed container, E group is placed in open container, is saved for 24 hours under the conditions of being 60% in 25 DEG C, humidity
Afterwards, the E. coli clones number (X on sample is measured respectivelyD、XE), and calculate Escherichia coli growth rate α, α={ (XE-XD)/XD}×
100%。
Logging is as shown in table 1:
Table 1.
Known to the test data of comparative example and reference examples: heat-sensitive paper of the invention has excellent sun-proof performance, either
Solarization after solarization still prints before printing, final color variation is small, so that can protect bright-coloured lasting face after heat-sensitive paper printing
Color.Meanwhile by experimental data it can be seen that heat-sensitive paper of the invention can effectively inhibit bacterium with good bacteriostasis property
It breeds, is suitable as the wide print papers of circulation property such as ticket printing, the printing of supermarket's receipt.
Above-mentioned specific embodiment is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as
All by the protection of Patent Law in scope of the presently claimed invention.
Claims (8)
1. a kind of sun-proof antibacterial heat-sensitive paper, including original paper layer, heat-sensitive variable colour layer and protective layer, the heat-sensitive variable colour layer clamped in
Between original paper layer and protective layer, it is characterised in that: the tow sides of the original paper layer are provided with sun-proof antibacterial layer；It is described sun-proof
Antibacterial layer by including that the following raw material by weight is prepared,
80-100 parts of esters of acrylic acid adhesive
30-40 parts of nano inorganic filler
50-60 parts of organic solvent
5-8 parts of sun-screening agent
1-5 parts of extract solution from aloe
1-5 parts of antioxidant
1-3 parts of beeswax；
The solvent selection can dissolve the organic solvent of beeswax.
2. the sun-proof antibacterial heat-sensitive paper of one kind according to claim 1, it is characterised in that: the nano inorganic filler is nanometer
Silica, nano zine oxide and the nano-titanium dioxide ratio of 1:0.5:0.5 in mass ratio mix.
3. the sun-proof antibacterial heat-sensitive paper of one kind according to claim 1, it is characterised in that: the organic solvent is acetone.
4. the sun-proof antibacterial heat-sensitive paper of one kind according to claim 1, it is characterised in that: the sun-screening agent is double ethyl hexyl oxygen
Phenol anisyl triazine.
5. the sun-proof antibacterial heat-sensitive paper of one kind according to claim 1, it is characterised in that: the antioxidant is antioxidant BHT.
6. a kind of preparation method of sun-proof antibacterial heat-sensitive paper as described in any one in claim 1-5, it is characterised in that: including such as
Lower step,
Beeswax predissolve: weighing beeswax and organic solvent mixing in proportion, and stirring to beeswax is completely dissolved to obtain beeswax solution；
Sun-proof antibacterial material preparation: extract solution from aloe, antioxidant and nano inorganic filler are weighed in proportion and is uniformly mixed；With
Afterwards, sequentially add in order preparation beeswax solution and sun-proof dose, continue stirring to be uniformly mixed to obtain mixture；
Solvent removal: it using the solvent in reduction vaporization method removal mixture, is sieved after grinding, it is spare to obtain sun-proof antibacterial material；
Sun-proof antibacterial layer coating: sun-proof antibacterial material is mixed, after mixing evenly with weighed esters of acrylic acid adhesive in proportion
Original paper layer tow sides are evenly applied to, sun-proof antibacterial layer is formed；
The coating of thermo colour layer: thermo colour is uniformly coated on the surface for the original paper layer for being coated with sun-proof antibacterial layer, forms temperature-sensitive
Photochromic layer；
Protective layer setting: it completes to cover laminated polyester film on the surface of heat-sensitive variable colour layer after thermo colour coats up to protective layer.
7. the preparation method of the sun-proof antibacterial heat-sensitive paper of one kind according to claim 6, it is characterised in that: described sun-proof antibacterial
Material preparation step is completed in a high speed mixer, and it is 3000-5000rpm that revolving speed is controlled in mixing process.
8. the preparation method of the sun-proof antibacterial heat-sensitive paper of one kind according to claim 6, it is characterised in that: the aloe is extracted
Liquid is prepared via following technique,
Step 1: being smashed to pieces after aloe is removed epidermis, the sodium carbonate liquor of isometric 1.0-3.0mol/L is added, stirs evenly
Mixture；
Step 2: heat preservation extraction 30-45min under the conditions of mixture obtained by step 1 is placed in 28-35 DEG C is filtered after heat preservation
Obtain extract liquor；
Step 3: being added the active carbon powder for accounting for extract liquor 1-5wt% in the extract liquor obtained by the step 2, after ultrasonic 10-15min,
Filter extract solution from aloe is spare.
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| CN111716931A (en) * | 2020-05-26 | 2020-09-29 | 湖南天琪智慧印刷有限公司 | Heat-sensitive paper with improved sun-proof and antibacterial performance and manufacturing method thereof |
| CN111827004A (en) * | 2020-05-26 | 2020-10-27 | 湖南天琪智慧印刷有限公司 | Thermal sensitive paper suitable for backing-paper-free label and manufacturing method thereof |
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