CN102619136A - Carbonless copy paper - Google Patents
Carbonless copy paper Download PDFInfo
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- CN102619136A CN102619136A CN2012101142373A CN201210114237A CN102619136A CN 102619136 A CN102619136 A CN 102619136A CN 2012101142373 A CN2012101142373 A CN 2012101142373A CN 201210114237 A CN201210114237 A CN 201210114237A CN 102619136 A CN102619136 A CN 102619136A
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Abstract
The invention discloses carbonless copy paper. The carbonless copy paper comprises base paper, a pre-coating formed on the surface of the base paper and a color development layer formed on the surface of the pre-coating, wherein the pre-coating contains filler and adhesive, or the pre-coating contains filler, adhesive and wax substance; and the pre-coating contains 50 to 60 mass percent of filler, 40 to 50 mass percent of adhesive, and 0 to 10 mass percent of wax substance. Because the pre-coating is coated on the surface of the base paper, exposure of fibers on the surface of the base paper can be reduced, holes in the surface of the paper are filled, problems about missing coating, shifting and the like in the subsequent process of coating the color development layer can be solved, the color development layer is coated uniformly, exposure points are reduced, and color development and printing of the color development layer are greatly improved. Moreover, the invention also provides a preparation method for the carbonless copy paper.
Description
Technical field
The present invention relates to a kind of NCR.
Background technology
NCR is a kind of carbon paper of novelty, and its surfaces coated is furnished with special coating, contains leuco dye and the Receptive acid colour development material of electronics with pressure-sensitive effect and giving property of electronics confession in this coating.Utilize leuco dye and colour development material that the reaction of chemical color development takes place, direct colour generation on paper, thereby on paper information such as display text, pattern.At present, producer all hopes when guaranteeing the NCR quality, to reduce its production cost as far as possible.Through promoting the curtain coater speed of a motor vehicle, in coating process, the phenomenons such as point, holiday that show money or valuables one carries unintentionally can occur, thereby influence the quality of NCR to improve the output of NCR.In addition, the body paper of NCR surface majority exists that fiber is exposed, hole, apparent defective such as coarse, has greatly influenced the quality of NCR.
Summary of the invention
In view of this, be necessary to provide a kind of NCR that effectively addresses the above problem.
In addition, also be necessary to provide a kind of preparation method of above-mentioned NCR.
A kind of NCR, it comprises body paper and chromonic layer, and this NCR also comprises precoated shet, and this precoated shet is formed at the body paper surface, and the surface that this chromonic layer is formed at this precoated shet is located between original paper layer and the chromonic layer precoated shet; Contain filler and adhesive in this precoated shet; Or contain filler, adhesive and wax property material in this precoated shet; Wherein the quality percentage composition of filler is 50%-60%, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%.
A kind of preparation method of NCR, it comprises the steps:
Initial body paper is provided;
At this body paper one surface coated first coating fluid and the dry precoated shet that forms; Contain filler and adhesive in this first coating fluid; Or contain filler, adhesive and wax property material in this first coating fluid; Wherein the quality percentage composition of filler is 50%-60% in this first coating fluid, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%;
In this precoated shet surface coated second coating fluid and the dry chromonic layer that forms.
NCR of the present invention is at fine and close, the level and smooth precoated shet of body paper surface coated; Not only can reduce the exposed of body paper surface fiber, fill up the paper hole, and in the process of follow-up coating chromonic layer; Also can reduce problems such as holiday, displacement; Make chromonic layer be coated with more evenly, reduced the generation of a phenomenon that shows money or valuables one carries unintentionally, greatly improved the color development and the printing of chromonic layer.
Description of drawings
Fig. 1 is the generalized section of the NCR of the present invention's one preferred embodiment.
The main element symbol description
| NCR | 100 |
| |
10 |
| Precoated shet | 11 |
| |
13 |
The following specific embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
The specific embodiment
The preparation method of the NCR 100 (as shown in Figure 1) of the present invention's one preferred embodiments, it comprises the steps:
(1) initial body paper 10 is provided
This body paper 10 is the body paper of general common NCR; The mixed pulp of one or both in preferred employing hardwood pulp (LBKP) or softwood pulp (NBKP) and the CTMP (BCTMP) and hardwood pulp is manufactured paper with pulp and is made; And the quality percentage composition of hardwood pulp is 70-100%; The quality percentage composition of softwood pulp is 0-10%, and the quality percentage composition of CTMP is 0-20%.This slurry of manufacturing paper with pulp body paper 10 is added with suitable chemicals, dry strength agent etc., to guarantee the intensity of body paper 10, guarantees carrying out smoothly of follow-up coating section.
For the physical index of this body paper 10, mainly need control its degree of sizing, COBB value (paper water absorbing properties parameter) and air permeability.For degree of sizing, require to be controlled at 5Sec and more than, degree of sizing is superior more good; The COBB value requires to be controlled at 15-35g/cm
2The air permeability required time of gas of unit volume (see through) require to reach 13sec/100cc and more than.
(2) preparation first coating fluid and being coated with
The component of this first coating fluid comprises filler and adhesive, also can further comprise wax property material, and wherein the quality percentage composition of filler is 50%-60%, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%.
This filler is the papermaking customary fillers, specifically can be calcium carbonate, talcum powder, mineral fibres, mica, titanium dioxide or filler level china clay.
This adhesive is the adhesive that conventional paper coating fluid uses, and specifically can be derivatives of modified glucose adhesive, modified polyvinyl acetate adhesive, modification paper grade (stock) adhesive, cationic starch/vinylacetate mixed adhesive, polyurethane hot melt adhesives or paste polyvinyl acetal composite adhesive.
This wax property material is a cation paraffin emulsion, and it can improve the compactness and the spreadability of coating, improves the air permeability and the smoothness of body paper 10.
This first coating fluid also can add a certain amount of water, makes the solid content of this first coating fluid reach 15-25%, and viscosity reaches 12-16cps.
This first coating fluid is coated the surface of body paper 10.Can use coating machine or other coating method, and coating weight is 4-6g/m
2
This first coating fluid forms precoated shet 11 after drying.Drying is removed the moisture content in first coating fluid, and adhesive and wax property material coat filler, form the precoated shet 11 of solid.The thickness of the precoated shet 11 of this solid is 1-2 μ m.
(3) preparation second coating fluid and being coated with
Second coating fluid that uses in this step can be the coating fluid of conventional NCR.
This second coating fluid comprises that parts by weight are respectively dispersant of the developer of the latex of the starch of the pigment of 5-100 part, 0-20 part, 0-25 part, 5-25 part, 0.1-4 part and the interfacial agent of 0.1-3 part.
This pigment can be one or more in grinding calcium carbonate, winnofil, china clay, carclazyte, calcining carclazyte, aluminium hydroxide, titanium dioxide, the talcum powder.
This starch can be one or more in potato starch, cornstarch, tapioca and the wheaten starch.
This latex can be one or more in styrene-butadiene latex, carboxylic styrene butadiene latex, carboxyl fourth cyanogen latex and the polyacrylic ester latex.
This developer can be one or more in atlapulgite, zinc salicylate and the phenolic resins.
This dispersant can be one or more in polyphosphate, Sodium Polyacrylate and the carboxylates such as calgon, sodium pyrophosphate.
This interfacial agent can be one or more in sulfosuccinate, the acetylene ethylene glycol.
Use coating machine that this second coating fluid is coated the surface of precoated shet 11, coating weight is 2.5-4.5g/m
2This second coating fluid forms the chromonic layer 13 of solid behind drying and dehydrating.The thickness of this chromonic layer 13 is 4-5 μ m.
NCR 100 of the present invention is at fine and close, the level and smooth precoated shet 11 of body paper 10 surface coated; Not only can reduce the exposed of body paper 10 surface fibers, fill up the paper hole, and in the process of follow-up coating chromonic layer 13; Also can reduce problems such as holiday, displacement; Make chromonic layer 13 be coated with more evenly, reduced the generation of a phenomenon that shows money or valuables one carries unintentionally, greatly improved the color development and the printing of chromonic layer 13.
See also Fig. 1, NCR 100 of the present invention, it comprises body paper 10, is formed at the precoated shet 11 on body paper 10 surface and is formed at the chromonic layer 13 on precoated shet 11 surfaces.
This body paper 10 is conventional carbonless copying body paper; The mixed pulp of one or both in preferred employing softwood pulp (NBKP) or hardwood pulp (LBKP) and the CTMP (BCTMP) and softwood pulp is manufactured paper with pulp and is made; And the quality percentage composition of hardwood pulp is 70-100%; The quality percentage composition of softwood pulp is 0-10%, and the quality percentage composition of CTMP is 0-20%.Contain filler and adhesive in this precoated shet 11; Or contain filler, adhesive and wax property material in this precoated shet 11; Wherein the quality percentage composition of filler is 50%-60%, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%.The thickness of this precoated shet 11 is 1-2 μ m.
This filler can be calcium carbonate, talcum powder, mineral fibres, mica, titanium dioxide or filler level china clay.This adhesive can be derivatives of modified glucose adhesive, modified polyvinyl acetate adhesive, modification paper grade (stock) adhesive, cationic starch/vinylacetate mixed adhesive, polyurethane hot melt adhesives or paste polyvinyl acetal composite adhesive.This wax property material is a cation paraffin emulsion.
This chromonic layer 13 can contain pigment, the starch of 0-20 part, the latex of 0-25 part, the developer of 5-25 part, the dispersant of 0.1-4 part and the interfacial agent of 0.1-3 part that parts by weight are respectively 5-100 part.The thickness of this chromonic layer 13 is 4-5 μ m.
Through specific embodiment the present invention is done further explanation below.
Embodiment 1
Body paper 10: slurry adopts 100% hardwood pulp, the grammes per square metre of manufacturing paper with pulp 46gsm (gram per square meter, every square meter grammes per square metre).
The first coating fluid prescription: adopt 60 parts in calcium carbonate, 40 parts of adhesive (latex, starch etc. make by the mixed of 2:3), 10 parts of cation paraffin emulsions.
The second coating fluid prescription: pigment adopts 60 parts in calcium carbonate, 40 parts of china clay, and starch adopts 12 parts of tapiocas; Latex adopts 12 parts of styrene-butadiene latexes; Developer adopts 22 parts of zinc salicylates, and interfacial agent adopts 0.5 part of sulfosuccinate, and dispersant adopts 0.8 part of calgon.
Embodiment 2
Body paper 10: slurry adopts the mixed pulp of 90% hardwood pulp and 10% CTMP, the grammes per square metre of manufacturing paper with pulp 46gsm.
The first coating fluid prescription: adopt 55 parts in calcium carbonate, 45 parts of adhesive, 5 parts of cation paraffin emulsions.
The second coating fluid prescription: identical with second coating fluid among the embodiment 1.
Embodiment 3
Body paper 10: slurry adopts the mixed pulp of 80% hardwood pulp and 20% CTMP, the grammes per square metre of manufacturing paper with pulp 46gsm.
The first coating fluid prescription: adopt 50 parts in calcium carbonate, 50 parts of adhesive.
The second coating fluid prescription: identical with second coating fluid among the embodiment 1.
The prepared NCR 100 of embodiment 1-3 is printed respectively and prints test.
The printing test result: the white point on the color lump obviously tails off, and print density has and improves approximately 3%, and color development deepens.
The printing test result: print to 12000m, pull is still complete, and the paper powder is piled up less.
In addition, those skilled in the art also can make various modifications, interpolation and the replacement on other form and the details in claim of the present invention scope of disclosure and spirit.Certainly, these all should be included within the present invention's scope required for protection according to the variations such as various modifications, interpolation and replacement that the present invention's spirit is made.
Claims (18)
1. NCR, it comprises body paper and chromonic layer, it is characterized in that: this NCR also comprises precoated shet, and this precoated shet is formed at the body paper surface, and the surface that this chromonic layer is formed at this precoated shet is located between original paper layer and the chromonic layer precoated shet; Contain filler and adhesive in this precoated shet; Or contain filler, adhesive and wax property material in this precoated shet; Wherein the quality percentage composition of filler is 50%-60%, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%.
2. NCR as claimed in claim 1 is characterized in that: this filler is calcium carbonate, talcum powder, mineral fibres, mica, titanium dioxide or filler level china clay.
3. NCR as claimed in claim 1 is characterized in that: this adhesive is derivatives of modified glucose adhesive, modified polyvinyl acetate adhesive, modification paper grade (stock) adhesive, cationic starch/vinylacetate mixed adhesive, polyurethane hot melt adhesives or paste polyvinyl acetal composite adhesive.
4. NCR as claimed in claim 1 is characterized in that: this wax property material is a cation paraffin emulsion.
5. NCR as claimed in claim 1 is characterized in that: the thickness of this precoated shet is 1-2 μ m.
6. NCR as claimed in claim 1 is characterized in that: this chromonic layer contains pigment, the starch of 0-20 part, the latex of 0-25 part, the developer of 5-25 part, the dispersant of 0.1-4 part and the interfacial agent of 0.1-3 part that parts by weight are respectively 5-100 part.
7. NCR as claimed in claim 6 is characterized in that: this pigment is one or more in grinding calcium carbonate, winnofil, china clay, carclazyte, calcining carclazyte, aluminium hydroxide, titanium dioxide, the talcum powder; This starch is one or more in potato starch, cornstarch, tapioca and the wheaten starch; This latex is one or more in styrene-butadiene latex, carboxylic styrene butadiene latex, carboxyl fourth cyanogen latex and the polyacrylic ester latex; This developer is one or more in atlapulgite, zinc salicylate and the phenolic resins; This dispersant is one or more in calgon, sodium pyrophosphate, Sodium Polyacrylate and the carboxylate; This interfacial agent is one or more in sulfosuccinate, the acetylene ethylene glycol.
8. NCR as claimed in claim 1 is characterized in that: the thickness of this chromonic layer is 4-5 μ m.
9. NCR as claimed in claim 1; It is characterized in that: the mixed pulp of one or both in this body paper employing hardwood pulp or softwood pulp and the CTMP and hardwood pulp is manufactured paper with pulp and is made; And the quality percentage composition of hardwood pulp is 70-100%; The quality percentage composition of softwood pulp is 0-10%, and the quality percentage composition of CTMP is 0-20%.
10. NCR as claimed in claim 1 is characterized in that: the degree of sizing of this body paper is that the COBB value was 15-35g/cm more than 5sec reached
2, air permeability is more than 13sec/100cc reaches.
11. the preparation method of a NCR, it comprises the steps:
Initial body paper is provided;
At this body paper one surface coated first coating fluid and the dry precoated shet that forms; Contain filler and adhesive in this first coating fluid; Or contain filler, adhesive and wax property material in this first coating fluid; Wherein the quality percentage composition of filler is 50%-60% in this first coating fluid, and the quality percentage composition of adhesive is 40%-50%, and the quality percentage composition of wax property material is 0%-10%;
In this precoated shet surface coated second coating fluid and the dry chromonic layer that forms.
12. the preparation method of NCR as claimed in claim 11; It is characterized in that: the mixed pulp of one or both in this body paper employing hardwood pulp or softwood pulp and the CTMP and hardwood pulp is manufactured paper with pulp and is made; And the quality percentage composition of hardwood pulp is 70-100%; The quality percentage composition of softwood pulp is 0-10%, and the quality percentage composition of CTMP is 0-20%.
13. the preparation method of NCR as claimed in claim 11 is characterized in that: this filler is calcium carbonate, talcum powder, mineral fibres, mica, titanium dioxide or filler level china clay.
14. the preparation method of NCR as claimed in claim 11 is characterized in that: this adhesive is derivatives of modified glucose adhesive, modified polyvinyl acetate adhesive, modification paper grade (stock) adhesive, cationic starch/vinylacetate mixed adhesive, polyurethane hot melt adhesives or paste polyvinyl acetal composite adhesive.
15. the preparation method of NCR as claimed in claim 1 is characterized in that: this wax property material is a cation paraffin emulsion.
16. the preparation method of NCR as claimed in claim 11 is characterized in that: the solid content of this first coating fluid is 15-25%, and viscosity is 12-16cps, and the coating weight of first coating fluid is 4-6g/m
2
17. the preparation method of NCR as claimed in claim 11 is characterized in that: this second coating fluid contains pigment, the starch of 0-20 part, the latex of 0-25 part, the developer of 5-25 part, the dispersant of 0.1-4 part and the interfacial agent of 0.1-3 part that parts by weight are respectively 5-100 part.
18. the preparation method of NCR as claimed in claim 17 is characterized in that: this pigment is one or more in grinding calcium carbonate, winnofil, china clay, carclazyte, calcining carclazyte, aluminium hydroxide, titanium dioxide, the talcum powder; This starch is one or more in potato starch, cornstarch, tapioca and the wheaten starch; This latex is one or more in styrene-butadiene latex, carboxylic styrene butadiene latex, carboxyl fourth cyanogen latex and the polyacrylic ester latex; This developer is one or more in atlapulgite, zinc salicylate and the phenolic resins; This dispersant is one or more in polyphosphate, Sodium Polyacrylate and the carboxylates such as calgon, sodium pyrophosphate; This interfacial agent is one or more in sulfosuccinate, the acetylene ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114237.3A CN102619136B (en) | 2012-04-18 | 2012-04-18 | Carbonless copy paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114237.3A CN102619136B (en) | 2012-04-18 | 2012-04-18 | Carbonless copy paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619136A true CN102619136A (en) | 2012-08-01 |
| CN102619136B CN102619136B (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210114237.3A Active CN102619136B (en) | 2012-04-18 | 2012-04-18 | Carbonless copy paper |
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| Country | Link |
|---|---|
| CN (1) | CN102619136B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046433A (en) * | 2012-12-19 | 2013-04-17 | 青岛海洋新材料科技有限公司 | Carbonless copying paper |
| CN103103863A (en) * | 2012-12-31 | 2013-05-15 | 镇江大东纸业有限公司 | Method for producing dry type duplicating body paper |
| CN107366183A (en) * | 2017-06-28 | 2017-11-21 | 吕超 | A kind of preparation method of the carbon paper containing cationic starch coating modification barium sulfate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107802A (en) * | 1986-11-05 | 1988-08-10 | 三井东压化学株式会社 | Salicylic acid copolymers and its metal-salt and preparation method thereof contain the developer of this metal salts of copolymers and the colour developing paper of this developer of employing |
| CN1109824A (en) * | 1994-10-27 | 1995-10-11 | 范公桥 | Dry carbon paper and productive method |
| CN102230300A (en) * | 2011-04-22 | 2011-11-02 | 金华盛纸业（苏州工业园区）有限公司 | Digital carbonless copy paper |
| CN102230304A (en) * | 2010-09-27 | 2011-11-02 | 宁波鸿运纸业有限公司 | Preparation method for dry-type carbon paper |
-
2012
- 2012-04-18 CN CN201210114237.3A patent/CN102619136B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87107802A (en) * | 1986-11-05 | 1988-08-10 | 三井东压化学株式会社 | Salicylic acid copolymers and its metal-salt and preparation method thereof contain the developer of this metal salts of copolymers and the colour developing paper of this developer of employing |
| CN1109824A (en) * | 1994-10-27 | 1995-10-11 | 范公桥 | Dry carbon paper and productive method |
| CN102230304A (en) * | 2010-09-27 | 2011-11-02 | 宁波鸿运纸业有限公司 | Preparation method for dry-type carbon paper |
| CN102230300A (en) * | 2011-04-22 | 2011-11-02 | 金华盛纸业（苏州工业园区）有限公司 | Digital carbonless copy paper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046433A (en) * | 2012-12-19 | 2013-04-17 | 青岛海洋新材料科技有限公司 | Carbonless copying paper |
| CN103103863A (en) * | 2012-12-31 | 2013-05-15 | 镇江大东纸业有限公司 | Method for producing dry type duplicating body paper |
| CN107366183A (en) * | 2017-06-28 | 2017-11-21 | 吕超 | A kind of preparation method of the carbon paper containing cationic starch coating modification barium sulfate |
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| Publication number | Publication date |
|---|---|
| CN102619136B (en) | 2014-06-11 |
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Effective date of registration: 20220630 Address after: 212132, No. 8 Tung Hing East Road, Dagang, Jiangsu, Zhenjiang Patentee after: Goldeast Paper (Jiangsu) Co.,Ltd. Address before: 215126 No.2 Jinsheng Road, Shengpu Town, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: GOLD HUASHENG PAPER (SUZHOU INDUSTRIAL PARK) Co.,Ltd. |