用糯米粉生产高档啤酒标签胶的研究

以糯米粉为原料，研制高档啤酒标签胶。对基料选择、粘接强度、干燥速度、耐水性等影响因素进行了探讨，通过实验确定最佳工艺条件和生产配方，其性能满足啤酒高速贴标机25000～36000只／h的工作要求。     

项目推荐台

GB- 1型高档啤酒包装用胶　近年来 ,随着我国人民生活水平的提高 ,啤酒消费市场日趋火爆 ,据轻工行业协会的统计 ,我国有几百家啤酒生产厂家 ,全国每年的啤酒产量达到 2 0 0 0万吨以上 ,其中高档啤酒的产量平均占 1 / 4左右 ,并有逐年上升的趋势。由于高档啤酒利润较高 ,近年来国内许多啤酒生产厂家纷纷引进进口高档贴标包装生产线 (每小时生产啤酒 1 .5- 2万瓶 ) ,而高档啤酒所用的铝箔标签包装要求用胶的初粘力要强 ,粘度要高 ,干燥速度快等特性 ,普通的标胶根本无法满足其要求。目前 ,国内大部分啤酒生产厂家采用德国汉高进口酪素蛋白胶…     

耐冰水的啤酒瓶标签用大豆分离蛋白复合改性胶粘剂制备技术

<正>选用大豆分离蛋白、脲酶抑制剂、复合改性剂、交联剂为原料,通过共混、复合交联、聚合,制备出一种环保型大豆分离蛋白胶粘剂,经啤酒瓶标签粘贴于啤酒瓶后,在冰水中浸泡试验,标签7天以上不脱落,取去后置于洗脱液中浸泡,标签纸5～30 min后可自行脱落,不脱落者可用刷子刷洗。本胶可适用于高速贴标机上对啤酒瓶进行机贴标签,使用后的啤酒瓶可回收再使用。本胶与传统的高速贴标机用啤酒标签胶——干酪素胶相比,粘度、粘接强度等相当,耐冰水浸泡性能大大提高,而成本可大大降低(干酪素啤酒标签胶40 000～45 000元/吨,大豆分离蛋白啤酒标签胶为22 000～28 000元/吨)。合作方式:技术转让     

GB—1型高档啤酒包装用胶

一、市场分析近年来，随着我国人民生活水平的提高，啤酒消费市场日趋火爆，据轻工行业协会的统计，我国有几百家啤酒生产厂家，全国每年的啤酒产量达到２０００万吨以上，其中高档啤酒的产量平均占１／４左右，并有逐年上升的趋势。由于高档啤酒利润较高，近年来国内许多啤酒生产厂家纷纷引进高档贴标包装生产线（每小时生产啤酒１．５－２万瓶），而高档啤酒所用的铝箔标签包装要求用胶的初粘力要强，粘度要高，干燥速度快等特性，普通的标胶根本无法满足其要求。目前，国内大部分啤酒生产厂家采用德国汉高进口酪素蛋白胶，也有使用部分国…     

一种新型耐水干酪素啤酒标签胶的合成

以干酪素和丙烯酸酯乳液为主要原料、淀粉为助剂、交联剂A和交联剂B为复合交联剂,并引入分散剂和改性剂,制备出一种流动性好、粘接力强的快干型耐水干酪素啤酒标签胶。着重探讨了淀粉掺量、反应温度、p H和交联剂等对标签胶性能的影响。研究结果表明:当w(交联剂A)=0.1%~0.2%和w(交联剂B)=5%~8%(均相对于干酪素质量而言)、w(淀粉)=3%~5%(相对于丙烯酸酯乳液质量而言)、p H为7.5和反应温度为75℃时,标签胶具有相对最好的综合性能,并且完全满足啤酒厂20 000~60 000瓶/h的高速贴标机之生产要求,而且能完全替代进口同类产品。     

标签胶粘剂在冀问世

为解决瓶装啤酒、汽水等标签易掉标问题,河北省石油化工研究所研制成功一种894-2标签专用胶粘剂。该产品具有初粘度高、流动性好、干燥快、气候适应性强、所贴商标干燥后不脱落等优点。它适于大生产贴标机高速贴标,也     

丙烯酸聚合物乳液标签胶的研制

以丙烯酸聚合物乳液为主要成膜物,尿素为成膜助剂,锆化合物为交联剂,合成了一种新型啤酒瓶标签胶。当丙烯酸聚合物乳液用量为30%、尿素20%、锆化合物2%时,制备的标签胶初粘性强、耐水性好、成本低廉、胶耗量低,可以满足啤酒生产线高速贴标要求。     

高速啤酒标签胶

介绍了分别以合成高分子、淀粉和蛋白质为基料的高速啤酒标签胶的制备及其性能。     

新型高速水再溶性商标胶问世

随着近年来啤酒业的快速发展 ,我国现有啤酒厂 80 0多家 ,年产啤酒 1 990万吨 ,计划到 2 0 0 0年总产量将达 2 30 0万吨。从原来普通商标改为现在的铜板纸和铝箔纸标签 ,贴标速度每小时几千瓶提高到现在几万瓶高速。传统的聚乙烯醇胶和浆糊胶已满足不了高速贴标要求 ,而目前能满足铜板纸和铝箔纸标签高速贴标也只有蛋白胶 ,但生产蛋白胶的主要原料是生产奶粉的附产品 (干酪素 ) ,来源有限 ,价格昂贵 ,造成生产成本较高 ,市场售价 1 .2万元以上 /吨。为解决以上问题 ,由武汉市现代工业技术研究所研制出新一代淀粉改性高速水再溶性商标胶技术 …     

耐水金属箔标签胶的研制

介绍了以干酪素为主研制的耐水金属箔标签胶的制备方法及产品性能，讨论了影响标签胶性能的因素，并对啤酒贴标过程中存在的问题提出了相应的解决方法。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。