As an excellent packaging material, polyalkylene-based plastics have been widely used in the packaging of daily chemical, pharmaceutical, chemical and food products. The resulting printing ink market is also expanding. Since UV-curable inks have excellent properties that cannot be replaced by other solvent-based inks, they are being used more and more widely. Most of the commonly used inks on the market today are inks made in Japan or in France. Due to the high price and the delivery time, many bottle manufacturers in the country are in trouble. Henderson Ink Coatings (Hangzhou) Co., Ltd. has been working closely with internationally renowned UCB and SADOMA companies since 2001. Through nearly three years of hard work, in May 2003, the company officially launched special printing on PP, PE, PC and PVC materials. Bottle "UV-PPE ink". This product is UV-curable high gloss ink and can be printed on PC, PVC, processed PP, PE bottles, sheets, and other products through the screen printing process. Such as shampoo bottles, shower gel bottles, paint buckets, cups, boxes and other goods. After UV curing, it has clear and sharp printing effect and excellent chemical and physical resistance. A brief description of the product's instructions for use and related technical parameters is given below: First, the conventional performance mark: Gloss highlights. Use processed PP, PE material, PC, PVC, paper. The adhesive tape was peeled off with an adhesion cross-cut method with a spacing of 1 mm and 100 adhesion. The ink looks thick paste. Shrinkage 3-5. Printing area of ​​420 mesh monofilament PET screen, 80 degree sharper blade, per kilogram of ink can be printed about 75-80 cubic meters. The content of heavy metal lead has reached European EN-71 standard and Japanese ST standard. Drying time 80 w/cm, 1-3 seconds. Second, UV-PPE ink printing test results: Adhesion cross-cut kraft tape, spacing 1mm. 100 Resistance to bending 2 mm diameter, 180° bend. Does not break Hardness 45°×200g pressure. 3H Alcohol-resistant cotton balls impregnated with alcohol, 300 g pressure wipe 50 times. No abnormality Acid-resistant soaked in 5 sulfuric acid solution (normal temperature) for 8 hours. No abnormality Alkali resistance was soaked in 5NaOH solution (normal temperature) for 8 hours. No abnormality The water resistance is soaked in tap water (normal temperature) for 7 days. No abnormality Washability soaked in 3 neutral detergent solution 24 hours. No abnormality Grease resistance is soaked in salad oil (room temperature) for 8 hours. No abnormality Salt water-resistant cotton balls impregnated with saline, 300 g pressure wipe 50 times. No abnormality Boiling resistance is soaked in boiling water for 1 hour. No abnormality Superposition 032-Zhonglan Overprinted on 041-Special White. Excellent adhesion Test Methods: 1. Printed material: 1mm thick PE sheet. 2, screen: 250 mesh / inch. 3, scraper: 75 degree PU scraper. 4, drying time: UV curing. 5, color: 041 - special white 032 - Zhonglan. Third, the color: (Please refer to Henderson ink color sample card) (a) Standard basic colors: (B) Four-color outlets: 041-Special White 025-Yellow 034-Bao Lan 071-Four Color Red 051-Black 215-Peach 035-Ultra 072-Four Yellow 018-Red 216-Rose Red 061-Special Green 073- Four Color Blue 8141 - Red 217 - Purple 064 - Fruit Green 074 - Four Color Black 315-Orange 030-Selenium 091- Varnish SD-Dot Paste 023- Lime Yellow 032-Zhonglan 024 - Original Yellow Explanation: The above-mentioned colors are all environmentally-friendly, non-toxic inks, and lead content indicators have reached European EN-71 standards and Japanese ST standards. Fourth, operation suggestions: 1. Ambient temperature control: UV-PVC inks have great influence on the change of the viscosity caused by the ambient temperature. If the temperature is too low, the viscosity of the ink will become very large, causing the ink to penetrate the screen. Poor, and there may be problems with air bubbles or poor leveling. Therefore, the printing shop should try to keep the room temperature constant, generally 20-28 degrees, to ensure the consistency of the printing quality. 2, screen: generally 350-420 mesh / inch is appropriate, should be used S-class screen, the thickness of the photosensitive adhesive to 10u below is appropriate. 3. Scraper: Use a polyurethane scraper with a hardness of 75-80 degrees. The blade is sharp. 4, viscosity adjustment: Before use should be fully stirred evenly, according to the printing requirements, if you need to reduce the viscosity, you can add less than 8 to the UV-156 diluted Varnish, after mixing and use. 5. During printing, care should be taken to avoid direct exposure to ultraviolet light and sunlight in order to avoid accidental curing of the ink. Yellow light is safe light. 6, PP and PE materials should be flame treated before printing. Increase the surface tension of the material to 38 dyne/cm or more. If not handled properly, it will affect the ink adhesion. 7. When printing multi-layer superimposed colors, we should pay attention to weakening the intensity of the pre-colored UV light to avoid the phenomenon of poor post-color superposition due to over-curing of the preceding color. Source: 21st Century Fine Chemicals Network A teapot is a vessel used for steeping tea leaves or an herbal mix in boiling or near-boiling water, and for serving the resulting infusion which is called tea. Dry tea is available either in tea bags or as loose tea, in which case a tea infuser or tea strainer may be of some assistance, either to hold the leaves as they steep or to catch the leaves inside the teapot when the tea is poured. Teapots usually have an opening with a lid at their top, where the dry tea and hot water are added, a handle for holding by hand and a spout through which the tea is served. Some teapots have a strainer built-in on the inner edge of the spout. A small air hole in the lid is often created to stop the spout from dripping and splashing when tea is poured. In modern times, a thermal cover called a tea cosy may be used to enhance the steeping process or to prevent the contents of the teapot from cooling too rapidly.
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