CN103455053B - Myopia prevention spot ink concocting method - Google Patents

Myopia prevention spot ink concocting method Download PDF

Info

Publication number
CN103455053B
CN103455053B CN201310374945.5A CN201310374945A CN103455053B CN 103455053 B CN103455053 B CN 103455053B CN 201310374945 A CN201310374945 A CN 201310374945A CN 103455053 B CN103455053 B CN 103455053B
Authority
CN
China
Prior art keywords
ink
density
color lump
myopia prevention
color
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310374945.5A
Other languages
Chinese (zh)
Other versions
CN103455053A (en
Inventor
郭凌华
郭新华
刘正安
冷彩凤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201310374945.5A priority Critical patent/CN103455053B/en
Publication of CN103455053A publication Critical patent/CN103455053A/en
Application granted granted Critical
Publication of CN103455053B publication Critical patent/CN103455053B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

Myopia prevention spot ink concocting method, concrete steps are as follows: step 1, build myopic-preventing yellow green color lump; Step 2, gets yellow green color lump size 4cm × 4cm ~ 6cm × 6cm, carries out density measure obtain color lump density value to it; Step 3, adopts ink formulation method determination ink ratio to the color lump density value that step 2 obtains; Step 4, the ink ratio obtained according to step 3 carries out joining ink, obtains the myopia prevention yellow green color lump of expecting; Step 5, carries out aberration evaluation to the myopia prevention yellow green color lump that step 4 obtains according to colour difference formula.Myopia prevention spot ink concocting method of the present invention, not allowing fatigable yellow green color lump by building human eye, in this, as myopic-preventing aim colour, mixing myopic-preventing ink colors by Masking equation; The method of using ink formulation comes that alternative cost is high, the paper technology of high pollution, and method is simple, convenient, greatly reduces the cost of myopia prevention product.

Description

Myopia prevention spot ink concocting method
Technical field
The invention belongs to spot ink blending technology field, relate to a kind of myopia prevention spot ink concocting method.
Background technology
Spot ink allotment refers to two kinds or two or more ink, by adding a certain amount of auxiliary agent, regulates printability or the color of ink.Yellow green is the color best to eyes.555 nanometer reflection spectrum are the most sensitivity spectrum of vision, and when observing this color, eye fatigue is minimum, sees the clearest, alleviates the effect of visual fatigue.At present for myopia prevention mainly take be by paper technology by association with pulp bleaching to certain color, reach myopia prevention object.Paper technology is complicated, cost is high, easily pollute environment simultaneously.
Current spot ink allotment mainly contains following method: (1) database lookup method, and the method exists the quantity of joining mass colour block and is subject to database size restriction; (2) K-M theory color matching, its computing is more complicated and the colour generation characteristic of ink is on the low side, realizes more difficult in production reality; (3) neural network color matching, the method precision is low, can not meet the requirement of print quality; (4) Neugebauer equation color matching, sets up under blank area unit and process color primary color value two assumed conditions, and be subject to copy condition impact in practice a lot, ink is joined in very difficult realization.
Summary of the invention
The object of this invention is to provide a kind of myopia prevention spot ink concocting method, solve existing ink formulation method precision low and the problem of print quality requirement can not be met.
The technical solution adopted in the present invention is, myopia prevention spot ink concocting method, and concrete steps are as follows:
Step 1, builds myopic-preventing yellow green color lump;
Step 2, gets yellow green color lump size 4cm × 4cm ~ 6cm × 6cm, carries out density measure obtain color lump density value to it;
Step 3, adopts Masking equation and You Er Gunnar Nilsson formula determination ink ratio to the color lump density value that step 2 obtains;
Step 4, the ink ratio obtained according to step 3 carries out joining ink, obtains the myopia prevention yellow green color lump of expecting;
Step 5, carry out aberration evaluation to the myopia prevention yellow green color lump that step 4 obtains according to colour difference formula, its colour difference formula is:
ΔE a b * = ( L 1 * - L 2 * ) 2 + ( a 1 * - a 2 * ) 2 + ( b 1 * - b 2 * ) 2
Wherein, for colour brilliance value, for color hue value, for color saturation value, color look extent must be mixed, judge whether color reaches requirement according to GB: the general value of chromatism of national regulations for common product; Value of chromatism for fine product.
Feature of the present invention is also,
Step 1 is specifically implemented according to following steps: in the wavelength coverage of 460nm ~ 580nm, spectral tristimulus value and the chromaticity coordinate of myopia prevention color lump is searched by CIEXYZ chromaticity coordinate, utilize CIE1976Lab horseshoe curve, in horseshoe curve, search out pre-myopic-preventing yellow green color lump.
In step 3, the determination of ink ratio is specifically implemented according to following steps: color lump density value step 2 obtained is brought in Masking equation, then obtain every linear regression coeffficient by LINEST linear regression function, finally obtain ink ratio in conjunction with You Er Gunnar Nilsson formula;
Masking equation is:
C = 1 - m b y g x ( D r + m b y r - m r 1 - m b y g D g + y g m r - y r 1 - m b y g D b )
M = 1 - y r c b x ( c b y g - c g 1 - y r c b D r + D g + y r c g - y g 1 - y r c b D b )
Y = 1 - c g m r X ( c g m b - c b 1 - c g m r D r + m r c b - m r 1 - c g m r D g + D b )
Wherein, c g, c bbe respectively the ratio m of the density of blue or green ink under green, blue color filter and the density under red color filter r, m bbe respectively the ratio of the density of magenta ink under red, blue color filter and the density under green color filter; y r, y gbe respectively the ratio of the density of yellow ink under red, green color filter and the density under blue color filter; C, M, Y are the main density of green grass or young crops, product, yellow three-colour printing ink, the density namely under complementary color color filter; Dr, Dg, Db are the density value of any point respectively under red, green, blue color filter on printed matter.
You Er Gunnar Nilsson formula is:
a = 1 - 10 - D t n 1 - 10 - D v n
In formula: a---survey the dot area percentage of printed matter;
D t---survey the site reflection density of printed matter;
D v---survey the field density of printed matter;
N---be You Er-Gunnar Nilsson factor.
The invention has the beneficial effects as follows, myopia prevention spot ink concocting method of the present invention, not allowing fatigable yellow green color lump by building human eye, in this, as myopic-preventing aim colour, mixing myopic-preventing ink colors by Masking equation; The method of using ink formulation comes that alternative cost is high, the paper technology of high pollution, and method is simple, convenient, greatly reduces the cost of myopia prevention product.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
The black concocting method of myopia prevention spot color oil of the present invention, concrete steps are as under next time:
Step 1, build myopic-preventing yellow green color lump: in the wavelength coverage of 460nm ~ 580nm, spectral tristimulus value and the chromaticity coordinate of myopia prevention color lump is searched by CIEXYZ chromaticity coordinate, utilize CIE1976Lab horseshoe curve, in horseshoe curve, search out pre-myopic-preventing yellow green color lump;
Step 2, gets yellow green color lump size 4cm × 4cm ~ 6cm × 6cm, carries out density measure obtain color lump density value to it;
Step 3, adopts Masking equation and You Er Gunnar Nilsson formula determination ink ratio to the color lump density value that step 2 obtains:
Color lump density value step 2 obtained is brought in Masking equation, then obtains every linear regression coeffficient by LINEST linear regression function, finally obtains ink ratio in conjunction with You Er Gunnar Nilsson formula.
Masking equation is:
C = 1 - m b y g x ( D r + m b y r - m r 1 - m b y g D g + y g m r - y r 1 - m b y g D b )
M = 1 - y r c b x ( c b y g - c g 1 - y r c b D r + D g + y r c g - y g 1 - y r c b D b )
Y = 1 - c g m r X ( c g m b - c b 1 - c g m r D r + m r c b - m r 1 - c g m r D g + D b )
Wherein, c g, c bbe respectively the ratio m of the density of blue or green ink under green, blue color filter and the density under red color filter r, m bbe respectively the ratio of the density of magenta ink under red, blue color filter and the density under green color filter; y r, y gbe respectively the ratio of the density of yellow ink under red, green color filter and the density under blue color filter; C, M, Y are the main density of green grass or young crops, product, yellow three-colour printing ink, the density namely under complementary color color filter; Dr, Dg, Db are the density value of any point respectively under red, green, blue color filter on printed matter.
You Er Gunnar Nilsson formula is:
a = 1 - 10 - D t n 1 - 10 - D v n ,
In formula: a---survey the dot area percentage of printed matter;
D t---survey the site reflection density of printed matter;
D v---survey the field density of printed matter;
N---be You Er-Gunnar Nilsson factor;
Step 4, the ink ratio obtained according to step 3 carries out joining ink, obtains the myopia prevention yellow green color lump of expecting;
Step 5, carry out aberration evaluation to the myopia prevention yellow green color lump that step 4 obtains according to colour difference formula, its colour difference formula is:
ΔE a b * = ( L 1 * - L 2 * ) 2 + ( a 1 * - a 2 * ) 2 + ( b 1 * - b 2 * ) 2
Wherein, for colour brilliance value, for color hue value, for color saturation value, color look extent must be mixed, judge whether color reaches requirement according to GB: the general value of chromatism of national regulations for common product; Value of chromatism for fine product.
Myopia prevention spot ink concocting method of the present invention, not allowing fatigable yellow green color lump by building human eye, in this, as myopic-preventing aim colour, mixing myopic-preventing ink colors by Masking equation; The method of using ink formulation comes that alternative cost is high, the paper technology of high pollution, and method is simple, convenient, greatly reduces the cost of myopia prevention product.
Embodiment 1
For the pistac of 500nm, illustrate the yellowish green concocting method of myopia prevention of the present invention and process.
Step 1, the spectral tristimulus value being searched myopia prevention color lump corresponding to 500nm by CIEXYZ chromaticity coordinate is X=0.0049, Y=0.3230, Z=0.2720 and chromaticity coordinate x=0.0082, y=0.5384, z=0.4534, utilizes CIE1976Lab horseshoe curve, searches out pre-myopic-preventing yellow green color lump in horseshoe curve;
Step 2, getting yellow green patch image size is 4.0cm × 4.0cm, utilizes densitometer to carry out density measurement to it, records the value that Dr, Dg, Db are respectively (0.1,0.1,0.7);
Step 3, determine ink ratio: test Dr, Dg, Db are brought in coefficient Masking equation:
C＝1.2553(Dr-0.2599Dg-0.2057Db)
M＝1.505(-0.459Dr+Dg-0.2056Db)
Y＝1.3062(-0.1349Dr-0.7472Dg+Db)
Obtain CMY to be matched colors to be respectively (0.2,0.19,0.9): CMY is brought in You Er Gunnar Nilsson formula
a = 1 - 10 - D t n 1 - 10 - D v n
The equivalent obtained each dot area number percent CMY is respectively (15.9%, 16.1%, 64.9%), and application chromatography is learnt, the color matching ratio of this color is:
C:M:Y:W＝15.9:16.1:64.9:(100-15.9+100-16.1+100-64.9)＝15.9:16.1:64.9:203.9C:M:Y:W＝1:1:4:13
C, M, Y, W are respectively three primary colors green grass or young crops, product, Huang, diluent.
Step 4, allots 5g ink by the mode of hilted broadsword allotment, by adopting printability instrument printing batten.
Step 5, according to ΔE a b * = ( L 1 * - L 2 * ) 2 + ( a 1 * - a 2 ) 2 + ( b 1 * - b 2 * ) 2 Formula is evaluated the color allotted, by test for 5.23NBS, illustrate that it is common product.

Claims (2)

1. myopia prevention spot ink concocting method, is characterized in that, concrete steps are as follows:
Step 1, build myopic-preventing yellow green color lump, specifically implement according to following steps: in the wavelength coverage of 460nm ~ 500nm, spectral tristimulus value and the chromaticity coordinate of myopia prevention color lump is searched by CIEXYZ chromaticity coordinate, utilize CIE1976Lab horseshoe curve, in horseshoe curve, search out pre-myopic-preventing yellow green color lump;
Step 2, gets yellow green color lump size 4cm × 4cm ~ 6cm × 6cm, carries out density measure obtain color lump density value to it;
Step 3, adopts Masking equation and You Er Gunnar Nilsson formula determination ink ratio to the color lump density value that step 2 obtains;
Step 4, the ink ratio obtained according to step 3 carries out joining ink, obtains the myopia prevention yellow green color lump of expecting;
Step 5, carry out aberration evaluation to the myopia prevention yellow green color lump that step 4 obtains according to colour difference formula, its colour difference formula is:
ΔE a b * = ( L 1 * - L 2 * ) 2 + ( a 2 * - a 2 * ) 2 + ( b 1 * - b 2 * ) 2
Wherein, for colour brilliance value, for color hue value, for color saturation value, color look extent must be mixed, judge whether color reaches requirement according to GB: national regulations value of chromatism ΔE a b * ≤ 5.00 ~ 6.00 N B S , For common product; Value of chromatism ΔE a b * ≤ 4.00 ~ 5.00 N B S , For fine product.
2. myopia prevention spot ink concocting method according to claim 1, it is characterized in that, in described step 3, the determination of ink ratio is specifically implemented according to following steps: color lump density value step 2 obtained is brought in Masking equation, then obtain every linear regression coeffficient by LINEST linear regression function, finally obtain ink ratio in conjunction with You Er Gunnar Nilsson formula;
Masking equation is:
C = 1 - m b y g x ( D r + m b y r - m r 1 - m b y g D g + y g m r - y r 1 - m b y g D b )
M = 1 - y r c b x ( C b y g - c g 1 - y r c b D r + D g + y r c g - y g 1 - y r c b D b )
Y = 1 - c g m r x ( c g m b - c b 1 - c g m r D r + m r c b - m r 1 - c g m r D g + D b )
Wherein, c g, c bbe respectively the ratio m of the density of blue or green ink under green, blue color filter and the density under red color filter r, m bbe respectively the ratio of the density of magenta ink under red, blue color filter and the density under green color filter; y r, y gbe respectively the ratio of the density of yellow ink under red, green color filter and the density under blue color filter; C, M, Y are the main density of green grass or young crops, product, yellow three-colour printing ink, the density namely under complementary color color filter; Dr, Dg, Db are the density value of any point respectively under red, green, blue color filter on printed matter;
You Er Gunnar Nilsson formula is:
a = 1 - 10 - D t n 1 - 10 - D v n
In formula: a---survey the dot area percentage of printed matter;
D t---survey the site reflection density of printed matter;
D v---survey the field density of printed matter;
N---be You Er-Gunnar Nilsson factor.
CN201310374945.5A 2013-08-26 2013-08-26 Myopia prevention spot ink concocting method Active CN103455053B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310374945.5A CN103455053B (en) 2013-08-26 2013-08-26 Myopia prevention spot ink concocting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310374945.5A CN103455053B (en) 2013-08-26 2013-08-26 Myopia prevention spot ink concocting method

Publications (2)

Publication Number Publication Date
CN103455053A CN103455053A (en) 2013-12-18
CN103455053B true CN103455053B (en) 2016-03-16

Family

ID=49737541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310374945.5A Active CN103455053B (en) 2013-08-26 2013-08-26 Myopia prevention spot ink concocting method

Country Status (1)

Country Link
CN (1) CN103455053B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113493626A (en) * 2021-05-21 2021-10-12 宁夏银报智能印刷科技有限公司 Myopia-preventing ink and blending device thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109233429A (en) * 2017-07-04 2019-01-18 王瑞晓 A kind of environmentally protective spot ink of volume, books for taking notes or keeping accounts and pupil exercise book printing
KR20220134011A (en) * 2020-02-08 2022-10-05 가부시키가이샤 산악티스 Moisture control material for fruits and vegetables, containers for storing fruits and vegetables, and methods for preserving fruits and vegetables
CN113089374A (en) * 2021-03-02 2021-07-09 江西凯奇教育科技有限公司 Bionic myopia-preventing paper and processing technology and application thereof
CN113665268B (en) * 2021-05-21 2023-05-09 宁夏银报智能印刷科技有限公司 Myopia-preventing school book production process and production line

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136897A2 (en) * 1983-10-04 1985-04-10 Cherlyn Electronics Limited Mixing of printing inks
CN101255294A (en) * 2007-02-28 2008-09-03 三星电子株式会社 Ink set for image recording apparatus
CN101287609A (en) * 2005-10-03 2008-10-15 东洋油墨制造株式会社 Planographic printing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008254248A (en) * 2007-04-02 2008-10-23 Toyo Ink Mfg Co Ltd Lithographic ink composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136897A2 (en) * 1983-10-04 1985-04-10 Cherlyn Electronics Limited Mixing of printing inks
CN101287609A (en) * 2005-10-03 2008-10-15 东洋油墨制造株式会社 Planographic printing method
CN101255294A (en) * 2007-02-28 2008-09-03 三星电子株式会社 Ink set for image recording apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
蒙版方程在油墨调配中的应用;郭凌华;《中国印刷物资商情》;20071231(第3期);第47页 *
蒙版方程在配墨中的应用研究;郭凌华;《包装工程》;20041231;第25卷(第3期);第36-37页 *
防近视课本纸颜色的研究;张金声;《中国科学技术出版社》;20091231;第128-131页 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113493626A (en) * 2021-05-21 2021-10-12 宁夏银报智能印刷科技有限公司 Myopia-preventing ink and blending device thereof

Also Published As

Publication number Publication date
CN103455053A (en) 2013-12-18

Similar Documents

Publication Publication Date Title
CN103455053B (en) Myopia prevention spot ink concocting method
CN107856409B (en) A kind of printing spot color color matching method based on absorption spectrum
US4818285A (en) Ink jet printer ink composition and process for producing same
CN104354475B (en) Color inkjet printer single channel ink amount method for limiting
Kuehni Determination of unique hues using Munsell color chips
CN104217409A (en) Image color correction method based on simulated annealing optimization algorithm
CN108801938A (en) A kind of aberration On-line Measuring Method and system
CN103342916A (en) Method for recycling waste offset printing ink of mix of various colors
CN105667069A (en) Spectral color matching method based on Berr-Lambert's law
CN101587589A (en) Inkjet printing quality fuzzy evaluation method
CN103685856B (en) A kind of based on the theoretical method corrected large format scanning color aberration of complex frequency spectrum chrominance principle
CN104301580A (en) Method for achieving newspaper printing soft-proofing color consistency
CN106671594A (en) Method for determining printing three-primary color density
CN105818518A (en) Gravure printing four-color ink color-blending method for thermal-printing technology
CN114921975A (en) Camouflage digital ink-jet printing fabric with visible light-near infrared reflection spectral characteristics imitating forest land and preparation method
CN104048613B (en) A kind of ink film thickness detection method based on machine vision
Vusić et al. The neon colour spreading efect in various surround ambient conditions
Guyler Visualization of expanded printing gamuts using 3-dimensional convex hulls
Huang et al. The impact of different viewing light illuminance on cross-media color reproduction
Jin et al. Testing of the uniformity of color appearance space
CN104749112A (en) Method for virtually realizing LED (Light Emitting Diode) effect by use of luminescent spectrum
CN103902239B (en) One remotely joins ink screen proofing method
Spiridonov et al. The effect of different standard illumination conditions on color balance failure in offset printed images on glossy coated paper expressed by color difference
Pei-juan et al. The influence of trapping percentage to color reappearance
CN102702845A (en) Preparation method of spot color ink special for map printing

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20131218

Assignee: Zhang Jianwei

Assignor: Shaanxi University of Science and Technology

Contract record no.: 2017640000001

Denomination of invention: Method for mixing myopia-preventing spot-color ink

Granted publication date: 20160316

License type: Exclusive License

Record date: 20170203