Alkali-washable aluminum foil printing ink and preparation method thereof
A technology for printing ink and aluminum foil, applied in the field of alkali-washable aluminum foil printing ink and preparation, can solve problems such as ink pollution, and achieve the effects of rapid decomposition, rapid lye penetration, and excellent adhesion fastness
Inactive Publication Date: 2021-12-07
湖州杭华功能材料有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to solve the ink pollution problem of aluminum foil label ink in the alkaline cleaning of glass bottles, and to provide an alkali-washable aluminum foil printing ink and a preparation method. The ink formula of the present invention has excellent adhesion to aluminum foil, water resistance and wear resistance, and has excellent Alkaline washability, suitable for aluminum foil label printing on recycled beer bottles
Method used
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Comparison scheme
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Embodiment 1～5
[0041] Mix and prepare the alkali-washable aluminum foil printing ink of embodiment 1~5 according to the formula of table 1:
[0042] Table 1: Unit: wt%
[0043]
[0044] The inks of Examples 1 to 5 above were printed on the aluminum foil substrate for labels with a laboratory colorimeter, and then dried at room temperature for performance evaluation:
[0045] Table 2:
[0046]
[0047]
[0048] Note:
[0049] 1. The above adhesion fastness is tested with 3M600 adhesive tape;
[0050] 2. For friction resistance, A4 printing paper and 1KG briquette are used to rub back and forth 500 times without obvious discoloration, which is qualified;
[0051] 3. The smoothness and flexibility are judged based on the fact that there is no abnormality in the actual label embossing, film cutting label and automatic labeling;
[0052] 4. Blister resistance means that after soaking the color sample in cold water for 30 minutes, rubbing it with cotton cloth for 20 times without obvi...
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Abstract
The invention belongs to the technical field of printing ink, and particularly relates to alkali-washable aluminum foil printing ink and a preparation method. The printing ink comprises the following components in parts by weight: 5-10 parts of nitrocellulose, 1-15 parts of cellulose acetate, 1-15 parts of maleic acid modified rosin resin, 1-5 parts of epoxy resin, 8-30 parts of pigment, 1-3 parts of wax powder, 2-8 parts of an auxiliary agent, 5-25 parts of absolute ethyl alcohol, 2-15 parts of isopropanol, 10-30 parts of ethyl acetate, 2-20 parts of n-propyl acetate and 0.5-2.5 parts of a film-forming agent. The ink formula has excellent aluminum foil adhesion, water resistance, wear resistance and excellent alkali washability, and is suitable for printing aluminum foil labels of recycled beer bottles.
Description
technical field [0001] The invention relates to the technical field of ink, and mainly relates to an alkali-washable aluminum foil printing ink and a preparation method thereof. Background technique [0002] The glass bottles of most beer (or other glass bottled beverages) on the market need to be recycled, and the recycled wine bottles need to be sterilized and washed and the labels removed before canning again. Generally, 1.5-2.5% sodium hydroxide solution is used as the cleaning solution, and the temperature is about 60-85°C. Under the washing of this solution, the label will be eluted, and the metal aluminum foil in the label will be quickly dissolved by the lye. Since the ink printed on the aluminum foil loses its adherent substrate, a part of the ink fragments will flow into the bottle with the lye. If the ink fragments adhere to the inner wall of the bottle, it will be difficult to completely wash them out after subsequent washing with water. , thus will cause the po...
Claims
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IPC IPC(8): C09D11/14C09D11/03
CPCC09D11/14C09D11/03
Inventor 何良麻晗
Owner 湖州杭华功能材料有限公司