CN109470298A - A kind of method that stock classification is defined - Google Patents

A kind of method that stock classification is defined Download PDF

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Publication number
CN109470298A
CN109470298A CN201811218435.8A CN201811218435A CN109470298A CN 109470298 A CN109470298 A CN 109470298A CN 201811218435 A CN201811218435 A CN 201811218435A CN 109470298 A CN109470298 A CN 109470298A
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stock
value
paper
lab
class
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CN201811218435.8A
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CN109470298B (en
Inventor
唐小兴
梁宇先
王小斌
廖晓华
张先锋
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BEIJING ARTRON ART PRINTING Co Ltd
BEIJING ARTRON CULTURE DEVELOPMENT Co Ltd
SHANGHAI ARTRON ART PRINTING Co Ltd
SHENZHEN ARTRON COLOR PRINTING CO Ltd
Original Assignee
BEIJING ARTRON ART PRINTING Co Ltd
BEIJING ARTRON CULTURE DEVELOPMENT Co Ltd
SHANGHAI ARTRON ART PRINTING Co Ltd
SHENZHEN ARTRON COLOR PRINTING CO Ltd
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Priority to CN201811218435.8A priority Critical patent/CN109470298B/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass

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  • General Physics & Mathematics (AREA)
  • Paper (AREA)

Abstract

The present invention provides the methods that a kind of classification of stock is defined, comprising: tests the performance of stock；Classified according to the performance test results of stock and classification policy to the stock；It is bound according to result of the performance test results of stock to the classification, the present invention passes through the performance test results according to stock, qualitative classification is carried out to stock, and sorted stock is further defined according to the performance test results, classification method is comprehensively objective, the form and aspect problem that the quality of printed matter can be greatly improved, and consider stock itself, it is unmatched to solve the problems, such as that enterprise occurs print color when doing color management.

Description

A kind of method that stock classification is defined
Technical field
The present invention relates to the methods that printing technology more particularly to a kind of classification of stock define.
Background technique
Stock, which refers to, can receive ink or adsorb colorant and the various substances of picture and text are presented.Stock has paper by classification Printing, plastic printing, operplate printing, ceramic printing, wall printing.Stock paper include newsprint, typographic printing paper, plate paper, All newspapers, magazine paper, map paper, chart paper, copy paper, India paper, paper for covering books, writing paper, art post paperboard, offset paper, graph Swabbing paper and other a variety of materials etc..Stock classification in existing industry is mainly Coated (coating paper) and Uncoated (uncoated paper).In order to improve the quality of printed matter, corresponding printing standard is matched according to stock, it is best to print the stock Printing effect, colour gamut, absorbency, glossiness, roughness, form and aspect in controlling element are that the classification of essential stock is wanted Element.
In the prior art, stock is divided into Coated and Uncoated two major classes by ISO12647-2, most in industry Number is all that stock classification is carried out with the classification method of ISO, which carries out area according to the coating condition of paper surface Point, the existing classification method there are the problem of are as follows: the method for ISO classification relies primarily on personal sense organ and goes to judge, it is narrow and No data, without standard.Meanwhile according to the classification method in existing industry, all printing species can not be completely covered Type causes standard non-matching phenomenon the problems such as being easy to cause because of stock classification error, so that the print that printed matter can not be presented Brushing effects.Also, the coating condition on its surface is only that the classification of stock at present, does not consider the color of stock itself Phase problem is easy to cause enterprise to occur the unmatched problem of print color when doing color management.At present in industry, including ISO Standard, although the classification is not comprehensive there are the mode classification of stock, and planless, objective, digitization Classification method.
Therefore, in order to improve the quality of printed matter so that have in industry more comprehensively, the stock of more system, more standard Classification method needs to propose that a kind of comprehensive and high-quality stock defines classification method.
Summary of the invention
The embodiment provides the methods that a kind of classification of stock is defined, to solve problem above.
To achieve the goals above, this invention takes following technical solutions.
A kind of method that stock classification is defined characterized by comprising
The performance of stock is tested；
Classified according to the performance test results of the stock and classification policy to the stock；
It is bound according to result of the performance test results of the stock to the classification.
Further, the performance to stock is tested, comprising: carries out roughness test, light to stock Damp degree test, testing permeability, hot spot test and stock Lab measurement.
Further, the performance test results and classification policy according to the stock are to the stock Classify, comprising: according to the roughness test value R of the stock, glossiness test value G, testing permeability value S and hot spot The stock is divided into uncoated paper, speciality paper and coating paper by test value M.
Further, it is bound according to result of the performance test results of the stock to the classification, comprising:
According to the Lab measured value b and classification results of the stock, by the uncoated paper be defined as it is uncoated- Hectograph class, uncoated-Meng Ken class and uncoated-super yellow class；The speciality paper is defined as speciality paper-Gao Bai class, speciality paper- Raw white class and the cream-coloured class of speciality paper-；The coating paper is defined as coating-white class and coating-Huang class.
Further, the roughness test value R according to the stock, glossiness test value G, testing permeability Value S and hot spot test value M, is divided into uncoated paper, speciality paper and coating paper for the stock, specifically includes:
As the roughness test value roughness threshold value of R > first R1 of the stock；Or stock roughness test value R≤ First roughness threshold value R1, and the testing permeability value percolative threshold S1 of S≤first of the stock, then by the stock It is classified as uncoated paper；
When the roughness test value roughness threshold value R1 of R≤first of the stock, the testing permeability of the stock Value S > the first percolative threshold S1, and the percolative threshold of S≤second S2 (S2 > S1)；Or the roughness test of the stock The roughness threshold value R1 of value R≤first, testing permeability value S > the second percolative threshold S2, the glossiness test value gloss of G≤first Spend threshold value G1；Or the stock roughness test value threshold roughness value R1 of R≤first, testing permeability value S > the second permeability threshold Value S2, glossiness test value G > the first Gloss Threshold G1, the hot spot index test value hot spot index threshold M1 of M >=first then will The stock is classified as speciality paper；
When roughness test value R≤first roughness threshold value R1, testing permeability value the S > second of the stock permeates Property threshold value S2, glossiness test value G > the first Gloss Threshold G1, hot spot index test value M < the first hot spot index threshold M1, The stock is then classified as coating paper.
Further, the Lab measured value b and classification results according to the stock, will be described uncoated Paper is defined as uncoated-hectograph class, uncoated-Meng Ken class and uncoated-super yellow class, specifically includes:
As the first Lab threshold value b1 of Lab measured value b < of the uncoated paper, then the uncoated paper is defined as non-painting Cloth-hectograph class；
As the Lab measured value Lab threshold value b1 of b >=the first of the uncoated paper, and the 2nd Lab threshold value b2 of Lab measured value b < (b1 < b2), then be defined as uncoated-Meng Ken class for the uncoated paper；
As the Lab measured value Lab threshold value b2 of b >=the 2nd of the uncoated paper, then the uncoated paper is defined as non-painting The super yellow class of cloth-；
The Lab measured value b and classification results according to the stock, is defined as special type for the speciality paper Paper-Gao Bai class, speciality paper-raw white class and the cream-coloured class of speciality paper-, specifically include:
As the 3rd Lab threshold value b3 of Lab measured value b < of the speciality paper, then the speciality paper is defined as speciality paper-height White class；
As the Lab measured value Lab threshold value b3 of b >=the 3rd of the speciality paper, and the 4th Lab threshold value b4 of Lab measured value b < (b3 < b4), then be defined as speciality paper-raw white class for the speciality paper；
As the Lab measured value Lab threshold value b4 of b >=the 4th of the speciality paper, then the speciality paper is defined as speciality paper-rice Color class；
The Lab measured value b and classification results according to the stock, the coating paper is defined as applying The white class of Bu-and coating-Huang class, specifically include:
As the 5th Lab threshold value b5 of Lab measured value b < of the coating paper, then it is white the coating paper to be defined as coating- Class；
As the Lab measured value Lab threshold value b5 of b >=the 5th of the coating paper, then the coating paper is defined as coating-Huang Class.
Further, the described first roughness threshold value R1=4, the first percolative threshold S1=60, the second permeability threshold Value S2=95, the first Gloss Threshold G1=27, the first hot spot index threshold M1=260.
Further, the first Lab the threshold value b1=-1, the 2nd Lab threshold value b2=5, the 3rd Lab threshold value b3=0, the Four Lab threshold value b4=5, the 5th Lab threshold value b5=-3.
As seen from the above technical solution provided by the invention, the method that stock of the invention classification is defined, passes through The classification that the performance test results of stock are carried out with stock, more comprehensively can objectively reflect the property of stock, so that The quality of printed matter is further enhanced.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only one embodiment of the present of invention, for this For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others Attached drawing.
Fig. 1 is a kind of method flow diagram that stock classification is defined provided in an embodiment of the present invention；
Fig. 2 is a kind of process flow diagram of method that stock classification is defined provided in an embodiment of the present invention.
Appended drawing reference:
1. uncoated paper classifying rules；2. speciality paper classifying rules；3. coating paper classifying rules
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, below in conjunction with being further explained explanation for attached drawing, and it is real It applies example and does not constitute restriction to the embodiment of the present invention.
The method that stock classification provided in an embodiment of the present invention is defined, it is intended to pass through the performance test knot according to stock Fruit carries out classification to stock and defines, to solve the problems, such as that current stock classification method is not comprehensively one sided.
Embodiment
Fig. 1 is a kind of method flow diagram that stock classification is defined provided in an embodiment of the present invention, referring to Fig.1, the present invention The method that the stock classification that embodiment provides is defined, comprising:
S1 tests the performance of stock；
S2 classifies to the stock according to the performance test results and classification policy of the stock；
S3 is bound the result of the classification according to the performance test results of the stock.
Preferably, performance test includes: roughness test, glossiness test, testing permeability, hot spot test and stock Lab measurement.
Specific test process are as follows:
Roughness test: on printability instrument, by a drop of ink (precise volume) drop between two paper slips, with speed 0.3~0.5S grinds an ink trace out, and ink can fill up the pit portion of surface of the stock.Stock inking area is measured, with every Square metre inking area calculate stock roughness, test condition: printing pressure: 1000N；Print speed printing speed: 3m/s；Test Liquid measure: 1% indigo plant ink, 5mm are configured to water3。
Glossiness test: printability instrument is used under set speed and pressure using quantitative criterion glossiness ink Carry out color development.After specimen page is dry, the glossiness of Grossmeters measurement specimen page, test condition: printing pressure: 625N are used；Print Brush speed: 0.2m/s；Test liquid measure: red standard gloss ink, 2.4 μm.
Testing permeability: a drop of ink (5.8mg ± 0.3mg) drop in the printing disk of printability instrument and is fixed on fan Between paper slip on shape wheel, after sectional wheel rotation, an ink trace out can be ground.Through a drop of ink under certain pressure and speed, Grind the ink trace length that is formed in surface of the stock, come determine stock absorbency power.Ink trace is longer to show stock Absorbency it is lower, the printing permeability of stock is finally indicated using the inverse of ink trace length, test condition: printing is pressed Power: 1000N；Print speed printing speed: 1.25m/s；Test liquid measure: being configured to 1% tonyred ink with dibutyl phthalate, and one drips, 5.8mg±0.3mg。
Hot spot test: finally made using printability instrument printing stock using high-precision scanner scanning print sample The degree of irregularity of surface of the stock printing, i.e. hot spot index are calculated with image analysis software, test condition: printing pressure: 500N；Print speed printing speed: 0.2m/s；Test liquid measure: test ink, 8 μm.
Lab measurement: Lab is a three-dimensional color model, and L indicates brightness, and a indicates the range from carmetta to green, b table Show yellow to blue range.Functional measurement stock Lab value itself is measured using the Lab of spectrophotometer, test condition: point Light photometer, 0/45, D50,2 degree of visuals field, T response ,-LP, white background；Lab measures function or density+Lab measures function.
Preferably, according to the roughness test value R of the stock, glossiness test value G, testing permeability value S and light The stock is divided into uncoated paper, speciality paper and coating paper by spot test value M.
Specifically, as the roughness test value roughness threshold value of R > first R1 of the stock；Or stock roughness is surveyed The examination value roughness threshold value R1 of R≤first, and the testing permeability value percolative threshold S1 of S≤first of the stock, then by institute It states stock and is classified as uncoated paper；
When the roughness test value roughness threshold value R1 of R≤first of the stock, the testing permeability of the stock Value S > the first percolative threshold S1, and the percolative threshold of S≤second S2 (S2 > S1)；Or the roughness test of the stock The roughness threshold value R1 of value R≤first, testing permeability value S > the second percolative threshold S2, the glossiness test value gloss of G≤first Spend threshold value G1；Or the stock roughness test value threshold roughness value R1 of R≤first, testing permeability value S > the second permeability threshold Value S2, glossiness test value G > the first Gloss Threshold G1, the hot spot index test value hot spot index threshold M1 of M >=first then will The stock is classified as speciality paper；
When roughness test value R≤first roughness threshold value R1, testing permeability value the S > second of the stock permeates Property threshold value S2, glossiness test value G > the first Gloss Threshold G1, hot spot index test value M < the first hot spot index threshold M1, The stock is then classified as coating paper.
Preferably, the first roughness threshold value R1=4, the first percolative threshold S1=60, the second percolative threshold S2=95, First Gloss Threshold G1=27, the first hot spot index threshold M1=260:
Fig. 2 is a kind of process flow diagram of method that stock classification is defined provided in an embodiment of the present invention, referring to Fig. 2:
When stock roughness is greater than 4, i.e. when R > 4, stock is classified as uncoated paper；
When stock roughness is less than or equal to 4 and permeability is less than or equal to 60, i.e. R≤4 and when S≤60, stock is classified as Uncoated paper.
When stock roughness is less than or equal to 4, permeability is greater than 60 and is less than or equal to 95, i.e. R≤4 and when 60 < S≤95, Stock is classified as speciality paper；
When stock roughness be less than or equal to 4, permeability be greater than 95, glossiness be less than or equal to 27, i.e., R≤4 and S > 95 and When G≤27, stock is classified as speciality paper；
When stock roughness is less than or equal to 4, permeability is greater than 95, and glossiness is greater than 27, and hot spot index is more than or equal to 260, i.e. R≤4 and S > 95 and G > 27 and when M >=260, stock is classified as speciality paper.
When stock roughness is less than or equal to 4, permeability is greater than 95, and glossiness is greater than 27, and hot spot index is less than 260, i.e. R ≤ 4 and S > 95 and G > 27 and when M < 260, stock is classified as coating paper.
Preferably, according to the Lab measured value b and classification results of the stock, the uncoated paper is defined as Uncoated-hectograph class, uncoated-Meng Ken class and uncoated-super yellow class；By the speciality paper be defined as speciality paper-Gao Bai class, Speciality paper-raw white class and the cream-coloured class of speciality paper-；The coating paper is defined as coating-white class and coating-Huang class.
Specifically, the Lab measured value b and classification results according to the stock, by the uncoated paper It is defined as uncoated-hectograph class, uncoated-Meng Ken class and uncoated-super yellow class, is specifically included:
As the first Lab threshold value b1 of Lab measured value b < of the uncoated paper, then the uncoated paper is defined as non-painting Cloth-hectograph class；
As the Lab measured value Lab threshold value b1 of b >=the first of the uncoated paper, and the 2nd Lab threshold value b2 of Lab measured value b < (b2 > b1), then be defined as uncoated-Meng Ken class for the uncoated paper；
As the Lab measured value Lab threshold value b2 of b >=the 2nd of the uncoated paper, then the uncoated paper is defined as non-painting The super yellow class of cloth-；
The Lab measured value b and classification results according to the stock, is defined as special type for the speciality paper Paper-Gao Bai class, speciality paper-raw white class and the cream-coloured class of speciality paper-, specifically include:
As the 3rd Lab threshold value b3 of Lab measured value b < of the speciality paper, then the speciality paper is defined as speciality paper-height White class；
As the Lab measured value Lab threshold value b3 of b >=the 3rd of the speciality paper, and the 4th Lab threshold value b4 of Lab measured value b < (b4 > b3), then be defined as speciality paper-raw white class for the speciality paper；
As the Lab measured value Lab threshold value b4 of b >=the 4th of the speciality paper, then the speciality paper is defined as speciality paper-rice Color class；
The Lab measured value b and classification results according to the stock, the coating paper is defined as applying The white class of Bu-and coating-Huang class, specifically include:
As the 5th Lab threshold value b5 of Lab measured value b < of the coating paper, then it is white the coating paper to be defined as coating- Class；
As the Lab measured value Lab threshold value b5 of b >=the 5th of the coating paper, then the coating paper is defined as coating-Huang Class.
Preferably, the first Lab threshold value b1=-1, the 2nd Lab threshold value b2=5, the 3rd Lab threshold value b3=0, the 4th Lab threshold Value b4=5, the 5th Lab threshold value b5=-3:
Fig. 2 is the process flow diagram for the method that a kind of stock classification provided in an embodiment of the present invention is defined, referring to Fig. 2, When stock is uncoated paper, uncoated paper b value is less than -1, i.e. when b < -1, and stock is classified as uncoated-hectograph class；
When stock is uncoated paper, uncoated paper b value is more than or equal to -1 and less than 5, i.e. when -1≤b < 5, stock is returned For uncoated-Meng Ken class；
When uncoated paper b value is more than or equal to 5, i.e. when b >=5, stock is classified as uncoated-super yellow class.
When stock is speciality paper, speciality paper b value is less than 0, i.e. when b < 0, stock is classified as speciality paper-Gao Bai class；
When stock is speciality paper, speciality paper b value is more than or equal to 0 and less than 5, i.e. when 0≤b < 5, stock is classified as special type Paper-raw white class；
When stock is speciality paper, speciality paper b value is more than or equal to 5, i.e. when b >=5, and stock is classified as the cream-coloured class of speciality paper-.
When stock is coating paper, coating paper b value is less than -3, i.e. when b < -3, and stock is classified as coating-white class；
When stock is coating paper, coating paper b value is more than or equal to -3, i.e. when b >=-3, and stock is classified as coating-Huang class.
Those skilled in the art will be understood that the application type of above-mentioned input frame is only for example, other are existing or from now on may be used The input frame application type that can occur such as is applicable to the embodiment of the present invention, should also be included within the scope of protection of the present invention, and It is incorporated herein by reference.
The method defined the in conclusion stock of the embodiment of the present invention is classified, by being tested for the property to stock, According to the performance test results, qualitative classification carried out to stock, and according to the performance test results to sorted stock into Row further defines, this classification method is comprehensively objective, can greatly improve the quality of printed matter, and consider stock sheet It is unmatched to solve the problems, such as that enterprise occurs print color when doing color management for the form and aspect problem of body.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, and the process in attached drawing is simultaneously It is not necessarily necessary to the implementation present invention.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims Subject to.

Claims (8)

  1. A kind of method defined 1. stock is classified characterized by comprising
    The performance of stock is tested；
    Classified according to the performance test results of the stock and classification policy to the stock；
    It is bound according to result of the performance test results of the stock to the classification.
  2. 2. the method according to claim 1, wherein the performance to stock is tested, comprising: right Stock carries out roughness test, glossiness test, testing permeability, hot spot test and stock Lab measurement.
  3. 3. method according to claim 2, which is characterized in that the performance test results according to the stock And classification policy classifies to the stock, comprising: according to the roughness test value R of the stock, glossiness Test value G, testing permeability value S and hot spot test value M, are divided into uncoated paper, speciality paper and coating paper for the stock.
  4. 4. method according to claim 3, which is characterized in that according to the performance test results of the stock to described The result of classification is bound, comprising:
    According to the Lab measured value b and classification results of the stock, the uncoated paper is defined as uncoated-hectograph Class, uncoated-Meng Ken class and uncoated-super yellow class；The speciality paper is defined as speciality paper-Gao Bai class, speciality paper-raw white Class and the cream-coloured class of speciality paper-；The coating paper is defined as coating-white class and coating-Huang class.
  5. 5. according to the method described in claim 3, it is characterized in that, the roughness test value R according to the stock, Glossiness test value G, testing permeability value S and hot spot test value M, by the stock be divided into uncoated paper, speciality paper and Coating paper specifically includes:
    As the roughness test value roughness threshold value of R > first R1 of the stock；Or stock roughness test value R≤the first The stock, then be classified as by roughness threshold value R1, and the testing permeability value percolative threshold S1 of S≤first of the stock Uncoated paper；
    As the roughness test value roughness threshold value R1 of R≤first of the stock, the testing permeability value S > of the stock First percolative threshold S1, and the percolative threshold of S≤second S2 (S2 > S1)；Or the roughness test value R of the stock≤ First roughness threshold value R1, testing permeability value S > the second percolative threshold S2, the glossiness test value glossiness threshold of G≤first Value G1；Or the stock roughness test value threshold roughness value R1 of R≤first, testing permeability value S > the second percolative threshold S2, Glossiness test value G > the first Gloss Threshold G1, the hot spot index test value hot spot index threshold M1 of M >=first, then will be described Stock is classified as speciality paper；
    When the roughness test value roughness threshold value R1 of R≤first of the stock, testing permeability value S > the second permeability threshold Value S2, glossiness test value G > the first Gloss Threshold G1, hot spot index test value M < the first hot spot index threshold M1 then will The stock is classified as coating paper.
  6. 6. according to the method described in claim 4, it is characterized in that,
    The Lab measured value b and classification results according to the stock, is defined as non-painting for the uncoated paper Cloth-hectograph class, uncoated-Meng Ken class and uncoated-super yellow class, specifically include:
    As the first Lab threshold value b1 of Lab measured value b < of the uncoated paper, then the uncoated paper is defined as uncoated-glue Version class；
    As the Lab measured value Lab threshold value b1 of b >=the first of the uncoated paper, and the 2nd Lab threshold value b2 (b1 of Lab measured value b < < b2), then the uncoated paper is defined as uncoated-Meng Ken class；
    As the Lab measured value Lab threshold value b2 of b >=the 2nd of the uncoated paper, then the uncoated paper is defined as uncoated-super Yellow class；
    The Lab measured value b and classification results according to the stock, is defined as speciality paper-for the speciality paper High white class, speciality paper-raw white class and the cream-coloured class of speciality paper-, specifically include:
    As the 3rd Lab threshold value b3 of Lab measured value b < of the speciality paper, then the speciality paper is defined as speciality paper-Gao Bai Class；
    As the Lab measured value Lab threshold value b3 of b >=the 3rd of the speciality paper, and the 4th Lab threshold value b4 (b3 < of Lab measured value b < B4), then the speciality paper is defined as speciality paper-raw white class；
    As the Lab measured value Lab threshold value b4 of b >=the 4th of the speciality paper, then it is cream-coloured the speciality paper to be defined as speciality paper- Class；
    It is white to be defined as coating-by the Lab measured value b and classification results according to the stock for the coating paper Class and coating-Huang class, specifically include:
    As the 5th Lab threshold value b5 of Lab measured value b < of the coating paper, then the coating paper is defined as coating-white class；
    As the Lab measured value Lab threshold value b5 of b >=the 5th of the coating paper, then the coating paper is defined as coating-Huang class.
  7. 7. according to the method described in claim 5, it is characterized in that, the first roughness threshold value R1=4, the first permeability Threshold value S1=60, the second percolative threshold S2=95, the first Gloss Threshold G1=27, the first hot spot index threshold M1=260.
  8. 8. according to the method described in claim 6, it is characterized in that, the first Lab threshold value b1=-1, the 2nd Lab threshold value B2=5, the 3rd Lab threshold value b3=0, the 4th Lab threshold value b4=5, the 5th Lab threshold value b5=-3.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110450556A (en) * 2019-09-06 2019-11-15 北京雅昌艺术印刷有限公司 A kind of printing process improving uncoated paper colour gamut and quality
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CN110450556A (en) * 2019-09-06 2019-11-15 北京雅昌艺术印刷有限公司 A kind of printing process improving uncoated paper colour gamut and quality
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CN117429170A (en) * 2023-12-20 2024-01-23 陕西兴盛达印刷包装有限公司 Full-automatic printer for paper box production and application method thereof
CN117429170B (en) * 2023-12-20 2024-03-12 陕西兴盛达印刷包装有限公司 Full-automatic printer for paper box production and application method thereof

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