PAPERmaking! Vol11 Nr2 2025

Eastern-European Journal of Enterprise Technologies ISSN-L 1729-3774; E-ISSN 1729-4061

1/1 ( 133 ) 2025

čÿċĘĒćĒĎĄĂăďăčĂăčāăĒđăĕăÿċĒēĆÿēēĆăćČďđćčēĎĄĄċăėĎܼ ąđÿďĆćā ďđćčēćčą ćĒ đćāĆăđ āĎČďÿđăĂ ēĎ Ăćąćēÿċ ďđćčēćčą ܥ Ćă ĎďēćāÿċĂăčĒćēĘĎčÿĄċăėĎąđÿďĆćāďđćčēćČďđćčēćĒ އވ ࠘ ĆćąĆăđ ēĆÿčĎčÿĂćąćēÿċďđćčēćČďđćčē ܥ ĆćĒćĒăĒďăāćÿċċĘčĎēćāăÿĀċăÿē ކކއ ďăđāăčēĒÿēĔđÿēćĎčĄĎđÿċċ āĎċĎđĒ ܥ ĆĔĒ ܡ ćēĆÿĒĀăăč āĎčĄćđČăĂēĆÿēĄċăėĎąđÿďĆćāďđćčēćčąćčāđăÿĒăĒēĆăĀđćąĆēčăĒĒ ĎĄēĆăćČÿąăĎčēĆăćČďđćčē ܥ

The concordance coefficient W varies in the range from 0 to 1 – 0 ≤ W ≤ ܤއ ĖĆăč W = ކ ēĆăđăćĒāĎČďċăēăćčāĎčĒćĒēăčāĘ ܡ  when W = އ ݁ āĎČďċăēăĔčćēĘĎĄăėďăđēĎďćčćĎčĒ ܥ  Ą W < ܡފܥކ ݁ވܥކ  ćē ČăÿčĒ ĖăÿĊ ÿąđăăČăčē ĎĄ ăėďăđēĒ ܢ  ćĄ W > ܡގܥކ ݁ތܥކ  ēĆăč ÿąđăăČăčē ĎĄ ăėďăđēĒ ćĒ ĒēđĎčą ܥ  W = ތܥކ  ćčĂćāÿēăĒ ÿ ČĎĂăđÿēă ĂăąđăăĎĄāĎčĒćĒēăčāĘĎĄăėďăđēĒ݆ ĎďćčćĎčĒܲ ܥ ăÿĊ ÿąđăăČăčē ćĒ ĔĒĔÿċċĘ ēĆă đăĒĔċē ĎĄ ēĆă ĄĎċċĎĖćčą đăÿĒĎčĒ ܤ ēĆăđăćĒčĎāĎČČĎčÿċćēĘĎĄĎďćčćĎčćčēĆăāĎčĒćĂăđăĂ ąđĎĔď ĎĄ ăėďăđēĒ ܢ  ĖćēĆćč ēĆă ąđĎĔď ēĆăđă ÿđă āĎÿċćēćĎčĒ ĖćēĆ ĆćąĆāĎčĒăčĒĔĒĎĄĎďćčćĎč ܡ ĆĎĖăĕăđ ܡ ēĆăąăčăđÿċćęăĂĎďćčćĎčĒ ĎĄēĆăāĎÿċćēćĎčĒÿđăĎďďĎĒćēă ܥ Ď ĂăēăđČćčă ēĆă āĎčāĎđĂÿčāă āĎ㥥ćāćăčē ܡ  ēĆă ĎďćčćĎčĒ ĎĄ އއ  ăėďăđēĒ Ėăđă ēÿĊăč ćčēĎ ÿāāĎĔčē đăąÿđĂćčą ēĆă ďđćĎܼ đćēĘĎĄ ޏ ćČďĎđēÿčē ĄÿāēĎđĒ ēĆÿē ÿĄĄăāē ēĆă ĐĔÿċćēĘ ĎĄ ďđćčēăĂ ćČÿąăĒܳ ܥ ܴލއ ĎđēĆăđăċćÿĀćċćēĘĎĄĎĔđđăĒĔċēĒĎĄăėďăđćČăčēÿċĒēĔĂćăĒ ܡ  ދ ݁މ ďÿđÿċċăċ ČăÿĒĔđăČăčēĒ Ėăđă āÿđđćăĂ ĎĔē ܥ  ēÿēćĒēćāÿċ ďđĎ - cessing of the research results was carried out using statis- ēćāÿċČăēĆĎĂĒćČďċăČăčēăĂćčēĆă  ĕ ކއܥ  ĒĎĄē - ĖÿđăďÿāĊÿąă ܥ 5. Results of studies on the quality of decoration of sanitary-hygienic products by the method of flexographic and digital printing 5. 1. Study of densitometric and colorimetric indica- tors of imprints ÿĒăĂĎčēĆăđăĒĔċēĒĎĄĎĔđđăĒăÿđāĆĎčĄċăėĎąđÿďĆćāďđćčē ćČďđăĒĒćĎčĒ ܡ  ēĆă ĂăďăčĂăčāă ďċĎēĒ ĎĄ ēĆă Ďďēćāÿċ ĂăčĒćēĘ ćč - ĂćāÿēĎđĒĎĄďđćčēăĂĄĔċċܼ āĎċĎđćČÿąăĒĎčāĎċĎđĒÿēĔđÿēćĎčĖăđă āĎčĒēđĔāēăĂܱ ćą ܥ  ܥ ܲދ Ćă ČĎđă ĒÿēĔđÿēăĂ ēĆă āĎċĎđ ܡ  ēĆă ČĎđă ćčĊćĒāĎčēÿćčăĂĎčēĆăĒĔđĄÿāăĎĄēĆăďđćčē ܥ ĆćĒċăÿĂĒēĎÿčćč - āđăÿĒăćčēĆăĎďēćāÿċĂăčĒćēĘĎĄēĆăďđćčēăĂćČÿąă ܥ ĆĔĒ ܡ ĒÿēĔܼ đÿēăĂāĎċĎđĒÿđăČĎđăĕćĕćĂĎčēĆăďđćčēćčąďđćčē ܥ  čēĆăđÿčąă ĄđĎČ ކދ  ēĎ ކކއ ࠘ ܡ  ēĆă Ďďēćāÿċ ĂăčĒćēĘ ĎĄ ēĆă ďđćčēăĂ ćČÿąă ÿċČĎĒēĂĎĔĀċăĒĄĎđÿċċ āĎċĎđĒ ܥ  čďÿđēćāĔċÿđ ܡ  ĄĎđ ĀċÿāĊ ćčĊ ܡ ēĆăĎďēćāÿċĂăčĒćēĘćčēĆăćčĂćāÿēăĂđÿčąăćčāđăÿĒăĒĄđĎČ ވދܥކ  ēĎ ތވܥއ  đăċÿēćĕăĔčćēĒ ܡ  ĄĎđ ćčĊ ݁  ĄđĎČ ވފܥކ  ēĎ ޏܥކ đăċÿܼ ēćĕă ĔčćēĒ ܡ  ĄĎđ ćčĊ ݁  ĄđĎČ ގފܥކ  ēĎ ގކܥއ  đăċÿēćĕăĔčćēĒ ܡ  ĄĎđ ćčĊ݁ ĄđĎČ ފܥކ ēĎ ކܥއ đăċÿēćĕăĔčćēĒ ܥ

1  5

1

0  5

0

5 10 20 30 40 50 60 70 80 90 100 Saturation, % C M Y K Fig. 6. Optical density diagrams of a full-color digital imprint čÿċĘĒćĒĎĄĂăčĒćēĎČăēđćāĒēĔĂćăĒāĎčĄćđČăĂēĆÿēēĆăĎďēć - āÿċĂăčĒćēĘĎĄēĆăďđćčēćčąćČďđćčēāĆÿčąăĒĂăďăčĂćčąĎčēĆă ēĘďăĎĄďđćčēćčąÿčĂēĆăĒÿēĔđÿēćĎčĎĄēĆăćČÿąă ܥ ÿĀċă މ ąćĕăĒ values of the color difference Δ ĎĄēĆăďđćčēăĂćČÿąăĒĎčēĆă ćčĕăĒēćąÿēăĂćČďđćčēĒ ܥ

Table 3

The difference in CMYK colors formed by sequential application of inks on the imprint (at 100 % image saturation)

ċăėĎąđÿďĆćāďđćčēćčą

ćąćēÿċďđćčēćčą

Δٖ C = ތވܥވ Δٖ  = ގފܥފ Δٖ  = ވތܥވ Δٖ K = ޏކܥއ

Δٖ C = ވވܥއ Δٖ  = މއܥވ Δٖ  = ލއܥއ Δٖ K = ތކܥވ

0 0  2 0  4 0  6 0  8 1 1  2 1  4

ĒĒēĔĂćăĒĒĆĎĖ ܡ  ēĆă āĎċĎđ Ă楥ăđăčāă Ďč ēĆă Ăćąćēÿċ ďđćčē ćČďđćčē ćčāđăÿĒăĒ ĄđĎČ ćčĊ ܱ ލއܥއ ࠘ܲ  ēĎ ćčĊ ܱ މއܥވ ࠘ܲ ܥ   ĒĎČăĖĆÿē Ă楥ăđăčē ďćāēĔđă ćĒ āĆÿđÿāēăđćĒēćā ĎĄ ēĆă ĄċăėĎܼ ąđÿďĆćā ďđćčē݁  ēĆă ćčāđăÿĒă ćč āĎċĎđ Ă楥ăđăčāă ćĒ ĎĀĒăđĕăĂ ĄđĎČćčĊ ܱ ޏކܥއ ࠘ܲ ēĎćčĊܱ ގފܥފ ࠘ܲ ܥ ÿĀċă ފ  ąćĕăĒ ēĆă đăĒĔċēĒ ĎĄ ČăÿĒĔđćčą ēĆă L * a * b * color āĎĎđĂćčÿēăĒĎčĄċăėĎąđÿďĆćāÿčĂĂćąćēÿċ čĊܼ ăēćČďđćčēĒ ܥ Ćă ĐĔÿċćēĘĎĄĂćąćēÿċďđćčēćčąćČďđćčēĒĖÿĒāĎČďÿđăĂÿāāĎđĂćčąēĎ ēĆă  ލފތވއ ĒēÿčĂÿđĂĀĘÿčÿċĎąĘĖćēĆĎĄĄĒăēďđćčēćčą ܥ ćÿąđÿČĒĎĄāĎċĎđāĎĕăđÿąăĎĄćČďđćčēĒĎčďÿďăđčÿďĊćčĒ ÿđăĒĆĎĖčćčćą ܥ  ܥލ Ćă ĒēĔĂĘ ĎĄ ēĆă āĎċĎđ āĎĕăđÿąă ĎĄ ÿċċ ēăĒēăĂ ĒÿČďċăĒ showed that their color coordinates are within the normative đÿčąăÿāāĎđĂćčąēĎēĆă  ލފތވއ ĒēÿčĂÿđĂ ܥ đĎČćą ܥ  ܡލ ćēāÿč ĀăĒăăčēĆÿēēĆăÿđăÿĎĄēĆăāćđāċăĎĄāĎċĎđāĎĕăđÿąăĎčēĆăćČ - ďđćčēĎĄĄċăėĎąđÿďĆćāďđćčēćčąćĒČĔāĆċÿđąăđēĆÿčēĆăÿđăÿĎĄ ēĆăāĎċĎđąÿČĔēĎĄĂćąćēÿċďđćčēćčą ܥ ĆăĖćĂăđēĆăāĎċĎđąÿČĔē ܡ  the greater the value of L * a * and bܹ ܥ 

0  4  0  8  1  2  5  10  50  75  80  85  90  95  98  99  100 Saturation, % ɋ M Y K Fig. 5. Optical density diagrams of a full-color print of flexographic printing on tissue paper ćą ܥ  ތ ĒĆĎĖĒĂćÿąđÿČĒĎĄēĆăĂăďăčĂăčāăĎĄēĆăĎďēćāÿċ ĂăčĒćēĘĎĄĂćąćēÿċďđćčēćČďđćčēĒĎčāĎċĎđĒÿēĔđÿēćĎč ܥ ĒēĆă ÿčÿċĘĒćĒĎĄēĆăĂćÿąđÿČĒđăĕăÿċĒ ܡ ēĆăđăĒĔċēćčąĂăďăčĂăčāă ĎĄēĆăĎďēćāÿċĂăčĒćēĘĎĄēĆăĂćąćēÿċďđćčēćČďđăĒĒćĎčćčāđăÿܼ ĒăĒćčďđĎďĎđēćĎčēĎēĆăāĎċĎđĒÿēĔđÿēćĎč ܥ ĆăČĎđăĒÿēĔđÿēăĂ ēĆăāĎċĎđĎĄēĆăďÿćčēܱ ކކއ ࠘ܲ ܡ ēĆăąđăÿēăđēĆăĎďēćāÿċĂăčĒćēĘ ĎĄ ēĆă ćČďđćčē ĖćēĆ ĔčāĆÿčąăĂ ĒĔĀĒēđÿēă ĒēđĔāēĔđă ÿčĂ ďđćčēćčąČĎĂăĒ ܥ

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