液体包装纸.ppt

Cup Stock - basic overview纸杯纸，食品卡纸……..介绍 Lai, Shiow-Meei 赖秀美 Business Manager, Greater China Hercules Incorporated 内容 液体包装简介 纸杯纸介绍 松香胶比较 问题提问/解答 Liquid Packaging Board 液体包卡纸 Clean Virgin Fibers - for strength, and its low taste, odor, and contamination Fiber Source - N.A. use all bleached fiber, - S.A. use use bleached and unbleached fiber, - European use bleached, unbleached and CTMP pulp Two basic types of LPB: Gable Top 尖顶包 meets Dairyman’s standards 符合乳制品标准 basis weight ranges from 240 – 485 g/m2. the filled containers require refrigeration to maintain salable product up to twenty-one days. 冰箱储藏21天 one poly (PE) layer on the outside and one or more layers on the inside. Aseptic 无菌包 long life packages up to 18 month, not require refrigeration basis weight ranges from 120 – 410 g/m2. aluminum foil layer - light, oxygen and microbial barrier to protect the product. no exposed edges （暴露）on the inside of the carton. Why is LPB sized? 液体包为何施胶 Gable Top cartons 尖顶包 have an exposed edge inside as well as outside the carton required to prevent the edges from soaking liquids which will lead to durability （耐久力）problems. Why is LPB sized? 液体包为何施胶 LPB Tests Used and Why? 施胶度测试方法 Edgewick 边渗水 - not Cobb, not HST 乳酸 双氧水 Two basic edgewick tests - lactic acid and peroxide edgewick tests Gable Top- lactic acid test (23°C, 24 hrs, 1% lactic acid) - modified test (23°C, 30 min, 20% lactic acid) - typical test values are 0.2 – 0.35 kg/m2 Aseptic - lactic acid test at 23C, 1 hr, 1% lactic acid. - typical values are 0.3 – 0.6 kg/m2 - the peroxide test (70°C, 35% peroxide, 10 minute) - the typical values are 0.5 - 1.2 kg/m2 Experimental Setup 选用那一种施胶剂？为何？ 双元施胶 (松香胶+ AKD) - 无菌包卡纸 rosin prov