Development and storage of high-temperature resistant aluminum foil inks

Abstract : The paper expounds the development and environmental protection of pharmaceutical aluminum foil packaging printing ink. Including: recipe design, material source requirements, production process, environmental feasibility analysis.

Keywords: pharmaceutical packaging printing ink; environmental protection; outlook

1. Research and development requirements for high temperature resistant pharmaceutical aluminum foil ink

With the improvement of people's awareness of environmental protection, the National Drug Packaging Containers (Materials.), issued by the State Drug Administration, has been trialing various technical standards specified in TBB00132002 since June 1, 2004. For example, the residual amount of solvent should not exceed 10.0mg/m2, in which the residual amount of benzene solvent should not exceed 3.0mg/m2 and the metal should not exceed one millionth, and the sodium thiosulfate 0.01mol/L. Only in strict accordance with YBBOO132002, in order to meet the international market, in order to meet the requirements of environmentally friendly ink.

The development of heat-resistant pharmaceutical aluminum foil packaging printing inks requires: (1) Strict use of clean raw materials; (2) Use of clean facilities and equipment; (3) Use of clean packaging containers; (4) Use of renewable energy or energy Recycled materials; (5) Use simple technology and strict material loss control to reduce pollutant emissions; (6) Produce wastes that are harmless, resource-efficient, and minimized; (7) Inks The pollution generated shall not exceed the technical parameters specified in the YBBOO1302 standard; (8) The packaging printing ink should not be decomposed by the ink and cause contamination when it is up to 180-250°C. In order to achieve environmental protection control in the design, production, printing, cutting, heat sealing and other processes.

2, high temperature transparent ink formula and process examples

2.1 Formulation Design

1) Cotton formula (kg):

11/2 seconds of nitrocellulose 20.00
2 Ethanol 22.00
3 toluene 24.00
4 Isopropanol 15.00
5 Butyl acetate 15.00
6 cyclohexanone 4.00

Preparation process: Nitrocellulose is weighed and put into the barrel first. After adding ethanol, it is soaked. Then, toluene and isopropanol are added. After a little stirring, butyl acetate and cyclohexanone are added, stirring is continued, and the total nitrocellulose is soaked. After being soaked and dissolved, stop stirring and wait until the foam has completely disappeared.
2) Preparation of antioxidant solution:

11010 15.00
2 toluene 85.00
First put 15kg1010 into the barrel, add 85kg toluene solvent, and then stir until it is clear and stop, you can use.

3) Preparation of 2042# liquid:

Dissolve with 50% xylene or butyl acetate and 50% of 2042#, ready for use.

4) Colorant formula:

(1) Clear Yellow 40.00
(2) Ethanol 40.00
(3) Butanol 20.00

5) Preparation of other raw materials:

(1) 50±30% MR-30;
(2) 50 ± 2% LM-405;
(3) 60% isooctanoic acid rare earth;
(4) 582 resin;
(5) Ethyl acetate;
(6) Ethanol;
(7) Propanol.

2.2 Formulation design of high-temperature transparent printing ink (mainly printed pharmaceutical fine-packaging products):

Examples:

(1) MR-30 127.50g
(2) LM-405 425.00g
(3) cotton solution 2788.85g
(4)582 40.00g
(5) 2402# 45.00g
(6) Rare earth 8.50g
(7)1010 42.50g
(8) Ethyl acetate 226.10g
(9) Ethanol 48.45g
(10) Acetone; 498.10g
(11) Color paste (transparent yellow 40.00%, ethanol 40.00%, butanol 20.0%)

Precautions:

1) The single binder is OP glue (liquid)/glazing protective coating.

2) When the 2042# resin is changed to 582, the material is transparent and light in color.

3) Increase the adhesion after adding 2042# resin or 582 resin to the binder.

4) When the LM-405 resin is increased by the binder, the gloss can be improved. Secondly, the addition of the leveling brightener to the binder is one of the methods to increase the gloss.

5) When the increase of 1010, can greatly reduce the content of easy oxide (easy oxide is the country's main technical standards) / increase the stability of high temperature resistant ink and varnish.
6) When the MR-30 resin is increased, the heat resistance of the ink or varnish can be greatly increased, but excessive addition will often affect the curing speed.

7) When the ethyl acetate single dilution solvent is changed to a mixed solvent (acetone 7.14%, ethyl acetate 35.35%, ethanol 17.51%), the solvent residue in the film of the ink or varnish can be greatly reduced. Improve the speed of printing or coating, 3 can greatly improve the adhesion of ink or varnish, 4 can greatly improve the gloss of the ink film, varnish film, 5 can greatly reduce the use of thinner (solvent) costs about 10%, To increase the printing company's production profits.

(Liu Jiaju)

Reprinted from: Packaging World