Sheet-fed offset printing inks and varnishes comprising new solvents

Abstract

An offset printing varnish, comprising a solvent, is provided. The solvent comprises at least one triglyceride with saturated monocarboxylic acid moieties, which solvent is preferably food safe.

Claims

1. An offset printing varnish comprising a solvent, wherein said solvent consists of food safe components including one or more triglycerides with saturated monocarboxylic acid moieties; wherein the one or more triglycerides with saturated monocarboxylic acid moieties are present in an amount of greater than 60% by weight based on the total weight of the solvent.

2. The offset printing varnish according to claim 1, wherein said one or more triglycerides with saturated monocarboxylic acid moieties is a medium chained triglyceride.

3. The offset printing varnish according to claim 1, wherein the total amount of said one or more triglycerides with saturated monocarboxylic acid moieties is 34-70% by weight based on the total weight of the varnish.

4. The offset printing varnish according to claim 1, wherein the solvent comprises at least one of the following compounds: a. 2,3-bis(octanoyloxy)propyl octanoate b. 2,3-bis(octanoyloxy)propyl decanoate c. 2-(decanoyloxy)-3-(octanoyloxy)propyl octanoate d. 2-(decanoyloxy)-3-(octanoylxy)propyl decanoate e. 3-(decanoyloxy)-2-(octanoyloxy)propyl decanoate f. 2,3-bis(decanoyloxy)propyl decanoate.

Description

EXAMPLE 1

Varnish 1

(1) TABLE-US-00004 Trade name Supplier Chemical description wt.-% Rofetan GTCC Deutsche Capryl/caprate glycerine 44 Hydrierwerke ester Foralyn D Eastmann Hydrogenated rosin ester 16 Chemicals Tergraf 902 Cray Valley Phenolic modified rosin 40 esters 100

EXAMPLE 2

Varnish 2

(2) TABLE-US-00005 Trade name Supplier Chemical description wt.-% Radiamuls 2106 Oleon Capryl/caprate glycerine 44 ester Setalin V414 Hexion Coconutoil alkyd resin 16 Tergraf 902 Cray Valley Phenolic modified rosin 40 esters 100

EXAMPLE 3

Varnish 3

(3) TABLE-US-00006 Trade name Supplier Chemical description wt.-% Rofetan GTCC Deutsche Capryl/caprate glycerine 47.2 Hydrierwerke ester SetalinV414 Hexion Coconutoil alkyd resin 16 Tergraf 940 Cray Valley Phenolic modified rosin 19 esters Tergraf ZU 80 Cray Valley Phenolic modified rosin 16 esters Gelling agent 50408 Sun Chemical Gelling agent aluminum 1.8 based 100

EXAMPLE 4

Varnish 4

(4) TABLE-US-00007 Trade name Supplier Chemical description wt.-% Rofetan GTCC Deutsche Capryl/caprate glycerine 48 Hydrierwerke ester Setalin V414 Hexion Coconutoil alkyd resin 16 Tergraf 902 Cray Valley Phenolic modified rosin 18 esters Tergraf 940 Cray Valley Phenolic modified rosin 18 esters 100

EXAMPLE 5

Varnish 5

(5) TABLE-US-00008 Trade name Supplier Chemical description wt.-% Rofetan GTCC Deutsche Capryl/caprate glycerine 54 Hydrierwerke ester Foralyn D Eastmann Hydrogenated rosin ester 10 Chemicals Tergraf 902 Cray Valley Phenolic modified rosin 18 esters Tergraf 940 Cray Valley Phenolic modified rosin 18 esters 100

EXAMPLE 6

Ink 1

(6) TABLE-US-00009 Trade name Supplier Chemical description wt.-% Varnish 2 Sun Chemical Varnish 67.5 BHT Helm AG BHT 0.1 Setalin V414 Hexion Coconutoil alkyd resin 8 Zeolithe powder 4A A + E Fischer NaAl-Silicate 0.6 Superslip 6515XF Micro Powders Micronized polyamide 0.8 wax Symuler Brilliant DIC Pigment Red 57:1 9.5 Carmin 6B 308 Symuler Brilliant DIC Pigment Red 57:1 8 Carmin 6B 303 Rofetan Ecogreen Triglyceride 5.5 with saturated- monocarboxylic acid moieties 100

EXAMPLE 7

Ink 2

(7) TABLE-US-00010 Trade name Supplier Chemical description wt.-% Varnish 3 Sun Chemical Varnish 66.5 BHT Helm AG BHT 0.1 Setalin V414 Hexion Coconutoil alkyd resin 8 Zeolithe powder 4A A + E Fischer NaAl-Silicate 0.6 Superslip 6515XF Micro Powders Micronized polyamide 0.8 wax Symuler Brilliant DIC Pigment Red 57:1 9.5 Carmin 6B 308 Symuler Brilliant DIC Pigment Red 57:1 8 Carmin 6B 303 Radiamuls 2106 Oleon Triglyceride 6.5 with saturated- monocarboxylic acid moieties 100