果冻杯膜的模切加工

俗话说″三分长相七分打扮″,一件印刷精美的印刷品具备了三分长相的资质,再经过印后加工的打扮,可以结合印刷的效果,形成精致可人的造型.可见印后加工在塑造印刷品形象中起到了重要作用.而模切在诸多印后加工手段中的作用显得更为突出其使印刷品表面既产生变形(压痕),又产生裂变(模切).本文以SLA-230链式全自动卷膜封口机(主要机构如图1、图2所示)为例,介绍模切技术在果冻杯膜加工中的应用供同行借鉴.

酸乳塑杯封口盖膜揭开力测试方法及其应用

研究检测酸乳塑杯封口盖膜揭开力的测试方法，利用专门的力值检测设备完全模拟人机操作对酸乳塑杯盖膜揭开力进行量化，主要表征为初始揭开力和持续揭开力。并以聚丙烯（polypropylene，PP）和聚苯乙烯（polystyrene，PS）2种塑杯，铝箔复合膜、镀铝复合膜、压花铝片3种封E1盖膜组合的市售酸乳包装为实验对象，通过该测试方法进行塑杯包装封口盖膜揭开力测试，最终得到不同包装形式相应的盖膜揭开力力值范围。结果表明：塑杯封口盖膜的初始揭开力明显大于持续揭开力，PS、PP塑杯封口盖膜初始揭开力值为10-25N；以压花铝片为封口材料时，塑杯封口盖膜的持续揭开力大于10N，以铝塑复合膜为封口材料时，塑杯封口膜的持续揭开力仅为4～8N-同种封口盖膜，PS塑杯的盖膜揭开力大于PP塑杯。而同种塑杯，镀铝封口膜的初始揭开力高于压花铝片和铝箔封口膜，压花铝片的持续揭开力高于镀铝封口膜和铝箔封口膜，差距悬殊。且以压花铝片为封杯材料时，盖膜初始揭开力与持续揭开力的差值会明显小，封杯强度相对稳定。

界面聚合制备含杯芳烃结构的交联膜

通过界面聚合将对叔丁基-杯[4]芳烃四-O-乙酰氯的正己烷溶液分别与己二胺、辛二胺及双端氨基聚乙二醇1000水溶液进行界面缩聚,制备出3种杯芳烃为交联点的无支撑聚合物薄膜,通过IR和SEM等手段对3种薄膜的化学结构和形貌进行了表征.结果表明,杯芳烃与双端氨基聚乙二醇1000形成的交联膜平滑、致密、具有黏性,适合在支撑膜表面形成含杯芳烃结构的聚酰胺皮层,可用于制备复合膜.

节膜型杯装酸奶封口机的设计

杯装酸奶及其它杯装液体饮料在最近几年流行于市,主要得益于其携带方便的缘故。各种类型的杯装封口机随着涌向市场,目前主要有手动杯装封口机和自动杯装封口机。两种机型都有相当大的市场。

调整型文胸的特点研究与分析

介绍了调整型文胸的发展历史及号型划分,按照功能划分为防垂、防散、防小文胸;按照罩杯划分为1/2杯、3/4杯、4/4全罩杯文胸;按照外型款式划分为无缝、魔术、前开扣、中腰长、棉质文胸;按照消费者的年龄划分为青少年、青年、中年、老年文胸。通过与普通文胸总体与细部结构的对比,从用料特点、外观设计、版型等几个方面,分析了调整型文胸的特点,外观设计上采用宽肩带、宽松紧带、宽侧翼、长软骨、多排背扣、3/4杯膜、侧提;版型上采用膜杯内胸托设计、宽后片、高后背U型设计、钢托、肩耳等。为文胸设计、制版等过程中更好地把握产品的功能特点,实现功能性提供了参考。

Distribution Law of Goblet Cells in the Intestinal Tracts of African Ostrich Chicks

[Objective] This study aimed to investigate the distribution law of different goblet cells in the intestinal tracts of African ostrich chicks. [Method] Alcian blue/pe- riodic acid-schiff reaction （AB/PAS） was adopted to observe and analyze the types and distribution of goblet cells in the intestinal tracts of ostrich chicks. Acid mu- copolysaccharide could be stained blue with alcian blue （AB）, and neutral mu- copolysaccharide could be stained red with periodic acid-schiff reagent （PAS）. [Result] According to AB/PAS results, goblet cells in the intestinal tracts were divided in- to four types： TypeⅠ was pure red, with AB negative result and PAS positive result containing neutral mucoitin; type Ⅱ was pure blue, with AB positive result and PAS negative result containing acidic mucoitin; type Ⅲ was purple reddish, with PAS posi- tive result greater than AB; typeⅣ was purple blue, with AB positive result greater than PAS. Large quantities of goblet cells were found in the intestinal tracts of os- trich chicks, mostly type III and IV.The quantities of goblet cells were decreased gradually in the duodenum, jejunum and ileum, while the quantities were increased in the cecum, colon and rectum. The goblet cells in the large intestine are more than that in the small intestine. The most quantities of goblet cells were contained in rectum. [Conclusion] These results indicate that the distribution of goblet cells is closely related with the structure and function of intestinal tracts. The mucus secret- ed by the goblet Cells plays a series of important roles in the digestion and mucosal immunization.

Effects of tribological behavior of DLC film on micro-deep drawing processes

To decrease the size effects of friction in microforming, three kinds of surface coatings, such as diamond-like carbon（DLC）, TiN and MoS2, were deposited on surfaces of dies with plasma based ion implantation and deposition（PBII D） method and magnetron sputtering technique, respectively. The tribological behavior of surface coatings was analyzed considering plastic deformation of specimen at contact interface. The analyses indicate that there is a lower coefficient of friction（COF） and a high wear resistance under the condition of large strain/stress when using the DLC film. The graphitization of DLC film occurs after 100 times of tests. The mechanism of graphitization was analyzed considering energy induced by friction work. The effects of DLC film properties on qualities of micro-deep drawn parts were investigated by analyzing the reduction of wall thickness, etc. The results indicate that DLC film is very helpful for improving the qualities of the micro-parts.

4种膜组件对黄连解毒汤膜过滤过程的比较研究

目的:以中药复方黄连解毒汤为实验对象,比较FMX旋转圆盘平板、中空纤维、管式、过滤杯4种膜组件的膜过滤过程。方法:在相同实验操作条件下,从膜过滤通量、膜阻力分布、指标性成分透过性、膜污染等多个方面,比较4种膜组件对黄连解毒汤的膜过滤情况。结果与结论:FMX、中空纤维、管式膜组件3种动态过滤形式的膜组件比静态死端过滤形式的过滤杯膜组件,在膜通量、膜污染度、指标成分透过性方面具有较为明显的优势;而使流体呈现强烈涡旋状态的FMX膜组件在膜通量、膜污染方面又比管式、中空纤维膜组件具有优势。