TH14161A3 - A film that can change color when the PH value change is produced from saffron and this film production process. - Google Patents

Abstract

EDIT 13/01/2017 (30/12/2016) The film that changes color when the pH value changes produced from Fang wood according to this invention has The main components are Fang juice, ethanol, chitosan, glutaraldehyde, here using acetic acid, which has two main production steps, from the color extraction from fang wood. As well as the preparation of chitosan poli Polymer by completely dissolving by mixing with acid and glutaraldehyde and then using Coating on the material we want, which can be coated on glass, ceramics, metal and polymer materials. By the method of producing a film that changes color when the PH value is changed, produced from Fang wood has an uncomplicated process. Produce both at the food and packaging industry level or sensors in both small industries. Or large industries When used in the food or packaging industry, it can know The freshness of the food can be determined by using your eyes. -------------------- The film that can change color when the PH value change produced from Fang wood according to this invention has The main ingredients are Fang wood juice, ethanol, chitosan, glutaraldehyde, here using acetic acid, which has two main production steps, from the extraction of the fang wood color. As well as the preparation of chitosan poli Polymer by completely dissolving by mixing with acid and glutaraldehyde and then using Coating on the material we want, which can be coated on glass, ceramics, metal and polymer materials. By the method of producing a film that changes color when the PH value is changed, produced from Fang wood has an uncomplicated process. Produce both at the food and packaging industry level or sensors in both small industries. Or large industries When used in the food or packaging industry, it can know The freshness of the food can be determined by using your eyes.

Claims (6)

Disclaimer (all) which will not appear on the advertisement page: EDIT 13/01/2017 (30/12/2016) 1. A film that can change color when the pH value changes produced from wood fang. It contains 50-92% water by weight of 5-90% ethanol by 0.5-10% by weight of Fang wood by 0.5-10% chitosan weight by 0.5-10% acid weight. Lutaraldehyde 0.5-20% by weight 2. A film that changes color when the PH value changes produced from fang wood. According to claim 1, where chitosan is selectable from chitosan with molecular mass during 50,000-500,000 grams per mol 3. Film that can change color when the PH value change produced from wood fang. According to claim 1, where acetic acid, nitric acid, citric acid or hydrochloric acid 4. film that can change color when the pH value changes produced from fang wood. According to claim 1, where glutaraldehyde has a concentration of 10-70 percent. 5. Color-changing film when the pH value changes produced from fang wood. According to claims 1-5, any one that can be used as a package Or sensors (Sensor). 6. The production process of the film that changes color when the pH value changes produced from Fang wood. According to claim 1, any one of which The steps are as follows: a. Extraction of color from boiled fang wood with volume water. 20-40% by weight And 5-90% of ethanol by weight at temperature in the range of 30-130 degrees Celsius, then a large amount of storage solution of wood fang. B. 0.5-10% by weight Mix with acid volume 0.5-10% by weight and volume. 20-50% by weight, melted at temperature in the range of 30-130 ° C and added 0.5-20% of glutaraldehyde by weight. Then stored until cool at room temperature, the solution is coated with the desired material, including glass, polymer or metal and then baked at Temperature in the range of 25-60 degrees Celsius. C. Applied in food packaging or sensors (Sensor) by applying the coating material (in item B.) immersed in Fang wood solution (in item A.) Duration of immersion. During 6-24 hours -------------------- 1. A film that can change color when the PH value change produced from Fang wood contains 50-92% water by weight, 5-90% ethanol by 0.5-10% by weight of Fang wood. 0.5-10% by weight, 0.5-10% acid by weight, 0.5-20% by weight glutaraldehyde. 2. A film that can change color when the PH value is changed, produced from Fang wood. According to claim 1, where chitosan is selectable from chitosan with molecular mass during 50,000-500,000 grams per mol 3. A film that can change color when the PH value is changed, produced from Fang wood. According to claim 1, where acetic acid, nitric acid, citric acid or hydrochloric acid 4. A film that can change color when PH value change produced from wood fang. According to claim 1, where glutaraldehyde has a concentration of 10-70 percent. 5. A film that can change color when the PH value is changed, produced from Fang wood. According to claims 1-5, any one that can be used as a package Or a sensor 6. The production process of the film that changes color when the PH value change produced from Fang wood. According to claim 1, any one of which The steps are as follows: a. Extraction of color from boiled fang wood with water, volume 20-40% by weight and volume of 5-90% ethanol by weight at temperature in the range of 30-130 degrees Celsius. B. Mix 0.5-10% by weight chitosan with 0.5-10% acid by weight and 20-50% by weight water, dissolve at temperature in the range of 30-130 ° Velsius and add Lutaraldehyde, 0.5-20% by weight, is then stored until cool at room temperature. The solution is coated with the desired material such as glass, polymer or metal and baking at Temperature in the range of 25-60 degrees Celsius. C. Applied in food packaging or sensors (Sensor) by applying the coating material (in item B.) immersed in Fang wood solution (in item A.) Duration of immersion. During 6-24 hours and can be applied in various fields