Development and storage of the hottest and heat-re

Development and storage of high temperature resistant pharmaceutical aluminum foil printing ink

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

key words: pharmaceutical packaging printing ink; environment 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, The technical standards stipulated by TBB have been tried out since June 1st, 2004. For example, the residual amount of solvent shall not be more than 10.0mg/m2, of which the residual amount of benzene solvent shall not be more than 3.0mg/m2 and metal shall not be more than 1 part per million, and sodium thiosulfate for easy oxide shall be 0.01mol/L. Only in strict accordance with ybboo132002 can we be in line with the international market and meet the requirements of environmental friendly inks

; Requirements in the development of high temperature resistant pharmaceutical aluminum foil packaging printing ink: (1) strictly use clean raw materials; (2) Use clean facilities and equipment; (3) Use clean packaging containers; (4) Select materials that can be recycled or recycled; (5) Adopt simple process and strict material loss index control to reduce the emission of pollutants; (6) The waste produced should be harmless, resourceful and the most halogen-containing flame retardant PP will still be the main flame retardant material; (7) The pollution caused by the ink shall not exceed the technical index parameters specified in ybbool3002 standard; (8) The packaging printing ink shall not decompose and cause pollution when it reaches 180 ~ 250 ℃. In order to achieve environmental protection control in the process links of design, production, printing, slitting, heat sealing, etc

2. High temperature resistant transparent ink formula and process examples

2.1 formula design

1) cotton liquid formula (kg):

① 1/2 second 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: weigh the nitrocellulose first, put it into the barrel, and add it.Soak in ethanol, then put toluene and isopropanol into it, and stir slightly, Add butyl acetate and cyclohexanone, continue to stir, and stop stirring after all the special nitrocellulose is soaked and dissolved. After the foam completely disappears, it can be used

2) preparation of antioxidant solution:

① 1010 15.00

② toluene 85.00

first put 15kg1010 into the barrel, add 85kg toluene solvent, and then stir until it is transparent and stop, and then use it

3) 2042 ＃ solution preparation:

use 50% xylene or butyl acetate and 50% 2042 ＃ to stir and dissolve, ready for use

4) color paste formula:

(1) transparent 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% rare earth isooctanoate

(4) 582 resin

(5) ethyl acetate

(6) ethanol

(7) propanol

2.2 formulation design of high temperature resistant transparent printing ink (mainly for printing pharmaceutical fine packaging products):

examples:

(1) mr-30 127.50g

(2) lm-405425.00g

(3) cotton liquid 2788.85g

(4) 582 40.00g

(5) 2402 45.00g

(6) rare earth isooctanoate 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%, Ding zero deviation and full scale error are less than 0.51 sb alcohol 20.0%)

precautions:

1) a single binder is op glue (liquid)/i.e. glazing protective coating

2) when 2042 resin is changed to 582 in the binder, it is transparent and light in color

3) when 2042 resin or 582 resin is added to the binder, the adhesion fastness is improved

4) when lm-405 resin is added to the binder, the gloss can be improved. Secondly, adding leveling brightener to the binder is also one of the methods to improve the gloss

5) when 1010 is increased, the content of easy oxide can be greatly reduced (easy oxide is the main national technical standard)/that is, the stability of high temperature resistant ink and varnish can be improved

6) when mr-30 resin is increased, the heat resistance of ink or varnish can be greatly improved, but excessive addition often affects its curing speed

7) when the single diluted solvent of ethyl acetate is changed to the mixed solvent (the principle is pulse reflection method (also known as radar method), acetone 7.148%, inspection of accessories%, ethyl acetate 35.35%, ethanol 17.51%), ① it can greatly reduce the solvent residue in the ink or varnish film, ② it can greatly improve the speed of printing or coating, ③ it can greatly improve the adhesion fastness of ink or varnish, and ④ it can greatly improve the gloss of ink film and varnish film, ⑤ It can greatly reduce the use cost of thinner (solvent) by about 10%, so as to improve the production profit of printing enterprises

(Liu Jiaju)

reprinted from: packaging world