Printing ink emulsion having reduced VOC

Claim 2

In a gravure ink composition comprising a colorant and vehicle, the improvement comprising employing a vehicle comprising a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3 by weight, respectively.

Claim 3

The ink composition of claim 1 wherein said organic solvent and water are present in a ratio of from 9:1 to 1:1 by weight, respectively.

Claim 4

The ink composition of claim 2 wherein said composition has a viscosity of from 14s to 90s Shell Cup #2 at a temperature between 20° to 75° C.

Claim 5

The ink composition of claim 3 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and (viii) drying and semi-drying oils.

Claim 6

The ink composition of claim 1 wherein said organic solvent and water are present in a ratio of from 3:1 to 1.5:1 by weight, respectively.

Claim 7

The ink composition of claim 5 wherein said composition has a viscosity of from 16s to 50s Shell Cup #2 at a temperature between 20° to 75° C.

Claim 8

The ink composition of claim 6 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and wherein said organic solvents of groups (i) to (vii) have between 3 and 40 carbon atoms per compound.

Claim 9

The ink composition of claim 6 wherein said water immiscible organic solvent is selected from the group consisting of toluene, xylene, and C 5 -C 40 aliphatic and cycloaliphatic hydrocarbons.

Claim 10

A gravure ink composition comprising by weight: (a) 2-25 parts colorant; (b) 5-35 parts resins; (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3, respectively; and (d) up to 15 parts of additives.

Claim 11

A gravure ink composition comprising by weight: (a) 2-25 parts colorant; (b) 5-35 parts resins; (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3, respectively; and (d) up to 15 parts of additives.

Claim 12

The ink composition of claim 9 wherein said organic solvent and water are present in a ratio of from 4:1 to 1.1:1 by weight, respectively.

Claim 13

The ink composition of claim 10 wherein said composition has a viscosity of from 14s to 90s Shell Cup #2 at a temperature between 20° to 75° C.

Claim 14

The ink composition of claim 11 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C., and (viii) drying and semi-drying oils.

Claim 15

The ink composition of claim 12 wherein said organic solvent and water are present in a ratio of from 3:1 to 1.5:1 by weight, respectively.

Claim 16

The ink composition of claim 13 wherein said composition has a viscosity of from 16s to 50s Shell Cup #2 at a temperature between 20° to 75° C.

Claim 17

The ink composition of claim 14 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and wherein said organic solvents of groups (i) to (vii) have between 3 and 40 carbon atoms per compound.

Claim 18

The ink composition of claim 14 wherein said water immiscible organic solvent is selected from the group consisting of toluene, xylene, and C 5 -C 40 aliphatic and cycloaliphatic hydrocarbons.

Claim 19

In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the ink composition comprising a colorant and a vehicle, wherein the improvement comprises employing a vehicle comprising a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in the ratio of from 9:1 to 1:3 by weight, respectively.

Claim 20

In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the ink composition comprising a colorant and a vehicle, wherein the improvement comprises employing a vehicle comprising a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in the ratio of from 9:1 to 1:3 by weight, respectively.

Claim 21

The process of claim 17 wherein said organic solvent and water are present in a ratio of from 9:1 to 1:1 by weight, respectively.

Claim 22

The process of claim 18 wherein said ink composition is at a temperature between 20° to 75° C. and said composition has a viscosity of from 14s to 90s Shell Cup #2.

Claim 23

The process of claim 19 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and (viii) drying and semi-drying oils.

Claim 24

The process of claim 17 wherein said organic solvent and water are present in a ratio of from 3:1 to 1.5:1 by weight, respectively.

Claim 25

The process of claim 18 wherein said ink composition is at a temperature between 20° to 75° C. and said composition has a viscosity of from 16s to 50s Shell Cup #2.

Claim 26

The process of claim 22 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and wherein said organic solvents of groups (i) to (vii) have between 3 and 40 carbon atoms per compound.

Claim 27

The process of claim 22 wherein said water immiscible organic solvent is selected from the group consisting of toluene, xylene, and C 5 -C 40 aliphatic and cycloaliphatic hydrocarbons.

Claim 28

In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the improvement comprises employing an ink composition comprising by weight: (a) 2-25 parts colorant; (b) 5-35 parts resins; (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3 by weight, respectively; and (d) up to 15 parts of additives.

Claim 29

In a gravure printing process for transferring an ink composition to a substrate by contacting the substrate with a rotating engraved cylinder which is partially immersed in the ink composition, the improvement comprises employing an ink composition comprising by weight: (a) 2-25 parts colorant; (b) 5-35 parts resins; (c) 50-93 parts on a resin-free basis of a water-in-oil emulsion of a water immiscible organic solvent and water, said organic solvent and water being in a ratio of from 9:1 to 1:3 by weight, respectively; and (d) up to 15 parts of additives.

Claim 30

The process of claim 25 wherein said organic solvent and water are present in a ratio of from 4:1 to 1.1:1 by weight, respectively.

Claim 31

The process of claim 26 wherein said ink composition is at a temperature between 20° to 75° C. and said composition has a viscosity of from 14s to 90s Shell Cup #2.

Claim 32

The process of claim 27 wherein said water immiscible organic solvent is selected from the group consisting of: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and (viii) drying and semi-drying oils.

Claim 33

The process of claim 25 wherein said organic solvent and water are present in a ratio of from 3:1 to 1.5:1 by weight, respectively.

Claim 34

The process of claim 26 wherein said ink composition is at a temperature of 20° to 75° and said composition has a viscosity of from 16s to 50s Shell Cup #2.

Claim 35

The process of claim 30 wherein said water immiscible organic solvent is selected from: (i) aromatic hydrocarbons having a single ring and a boiling point from 75° to 140° C.; (ii) aliphatic and cycloaliphatic hydrocarbons having a boiling point from 60° to 340° C.; (iii) esters of aliphatic acids having a boiling point from 65° to 175° C.; (iv) ketones having a boiling point from 75° to 180° C.; (v) alcohols having a boiling point from 100° to 260° C.; (vi) ethers having a boiling point from 100° to 210° C.; (vii) said water immiscible organic solvents from groups (i) to (vi) which are substituted with from 1 to 4 chloro or bromo substituents, and which have a boiling point of from 40° to 100° C.; and wherein said organic solvents of groups (i) to (vii) have between 3 and 40 carbon atoms per compound.

Claim 36

The process of claim 30 wherein said water immiscible organic solvent is selected from the group consisting of toluene, xylene, and C 5 -C 40 aliphatic and cycloaliphatic hydrocarbons.