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841.热水预抽提半纤维素的研究进展
[造纸和纸制品业] [2015-01-30]
本文从热水预抽提半纤维素的研究背景与国内外研究现状做出论述,得出了热水预抽提半纤维素具有低能耗和环保性等优点,对于传统制浆造纸行业提升附加值、提高竞争力有实际意义。另外,本文对热水预抽提半纤维素后固相和液相的利用做出了概括。液相:1)水解热水提取物;2)水解物的分离提纯;3)发酵制作糖类乙醇和生物聚合物。固相:1)热水提取后续制浆漂白和造纸;2)利用残余木质生物质生产重组木产品;3)剩余木质生物质进一步分离/水解,制作葡萄糖和芳烃等化合物。希望有更多的热水预抽提半纤维素的基础研究,为生物质精炼与制浆造纸的结合提供更多的理论基础。
关键词：热水抽提；半纤维素
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842.聚酯纤维表面改性及其对纸张性能的影响
[造纸和纸制品业] [2015-01-30]
对聚酯纤维(PET)三种表面改性方法及其对纸张性能的影响进行了研究。结果表明:碱减量法Na OH质量分数3%,碱处理时间60min,碱处理温度80℃,PET用量5%时纸张抗张强度较高,较未添加时提高了28.53%;最佳工艺下,增强剂CMC最佳用量为0.8%,苯丙胶乳增强效果不明显;聚丙烯酰胺(PAM)包覆法PAM浓度为0.0010g/m L,反应时间3h,反应温度35℃,PET用量5%时纸张抗张强度较高,较未添加时提高了19.18%。在最佳配比下,增强剂CMC和苯丙胶乳最佳用量分别为0.5%和0.2%;高锰酸钾引发PET接枝共聚法间甲酚浸泡温度50℃,浸泡时间3h,KMn O4浓度0.005mol/L,H2SO4浓度0.03 mol/L,丙烯酸浓度2.70mol/L,改性纤维用量为5%时,接枝率2.93%,抗张强度比未添加时提高了32.68%;对本研究中的三种方法,高锰酸钾引发PET接枝共聚法效果最好。
关键词：聚酯纤维；碱减量法
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843.涂层特性对彩喷纸物理和打印性能的影响
[造纸和纸制品业] [2015-01-30]
采用沉淀碳酸钙(PCC)和白乳胶配制底涂涂料(配方编号:A、B),以二氧化硅(Si O2)和聚乙烯醇为原料制备面涂涂料(配方编号:a、b、c),分别对纸张进行单底涂、单面涂和双层涂布,系统研究了涂层特性(包括颜料和胶黏剂比例不同,涂层层数变化)对彩喷纸物理和打印性能的影响。主要涉及的物理性能指标包括:涂布量、白度、平滑度、光泽度;打印性能指标:色密度、阶调、图像清晰度。研究结果表明,单层涂布中,与配方A相比,配方b的涂布量增加14.2%,平滑度和光泽度分别提高25.8%和7.3%,色密度提升15.7%,且各色阶调曲线斜率均有提高。单层(配方b)与双层(配方A+b)相比,单层的白度、光泽度、线条、文本质量比双层相对高一些,但涂布量、墨点圆度、平滑度和阶调再现性不如双层涂布。此外,随着胶黏剂所占比例的增加,彩喷纸的涂布量增加,白度和光泽度下降,平滑度、色密度及阶调再现性基本上是先上升后下降。
关键词：彩喷纸；涂层特性
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844.造纸过程中的溶解与胶体物质及其化学控制研究进展
[造纸和纸制品业] [2015-01-30]
在生产含有机械浆或废纸浆的纸张过程中,浆料中含有的大量溶解物和胶体物质(Dissolved and colloidal substances,简称DCS)被带入纸机抄造系统。随着白水系统封闭循环程度增加引起DCS的积累,给纸张抄造和纸张质量带来各种负面影响。因此,为了消除或减轻DCS所引起的不良影响,必须采取措施去除或控制系统中的DCS。本文主要论述了采用化学方法控制DCS的最新研究进展,重点介绍了固着剂的使用,包括各种固着剂的作用效果、固着机理、影响因素和对纸张质量的影响。
关键词：制浆造纸；溶解与胶体物质
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845.顶空气相色谱法检测卫生用纸中的氧乙烯基含量
[造纸和纸制品业] [2015-01-30]
本文建立了一种基于顶空气相色谱技术的卫生纸和纸巾纸中氧乙烯基含量的检测方法,该方法通过萃取、浓缩、高温反应等过程,将样品中的氧乙烯基转化为能够用顶空气相色谱检测的碘乙烷,与传统方法相比本文方法简便、安全、灵敏度高。
关键词：顶空气相色谱；卫生纸和纸巾纸
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846.全球糖果和烘焙包装市场报告（2015-2019年）
[食品制造业,橡胶和塑料制品业,造纸和纸制品业] [2015-01-07]
Confectionery products can be classified into three segments: Chocolate, Sugar Confectionery, and Gum. These items are popular among all age groups. In addition, the sale of confectionery products is independent of seasons or occasions.
关键词：糖果；烘焙；包装市场；包装业
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847.全球饮料包装市场报告（2015-2019年）
[橡胶和塑料制品业,造纸和纸制品业] [2015-01-03]
Beverage packaging provides product support, external environment protection, and tampering resistance for beverages. Beverage packaging aids in reliable distribution of beverages among the value chain and reduces post production damage. The different types of materials used in the Beverages Packaging industry are glass, plastic, metal, and other packaging materials. The application of these packaging materials in the Beverages industry is found in hot drinks packaging, packaged water, milk and dairy products packaging, beer packaging, CSD packaging, sports and energy drinks packaging, RTD ice tea packaging, and alcoholic drink packaging.
关键词：饮料包装；产品支持；外部环境；保护；玻璃；塑料；金属
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848.全球糖果和糕点包装市场报告（2015-2019年）
[橡胶和塑料制品业,造纸和纸制品业] [2015-01-02]
Confectionery products can be classified into three segments: Chocolate, Sugar Confectionery, and Gum. These items are popular among all age groups. In addition, the sale of confectionery products is independent of seasons or occasions. Packaging is an essential part of confectionery goods to preserve their quality, texture, and taste before they reach the end-customers. Confectionery dealers always look for packaging vendors that can provide appealing packaging solutions in terms of material, color, and innovations. This is critical to increase sales by enhancing product visibility.
关键词：糖果产品；包装；保持；质量；质地；味道
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849.全球文具卡片市场报告（2015-2019年）
[造纸和纸制品业,文教、工美、体育和娱乐用品制造业] [2015-01-02]
The Global Stationery and Cards market grows in line with changing demographics, developments in the economy, lifestyle changes, technological innovations, and seasonal and cyclic trends. The market has witnessed a significant change since the evolution of electronic media. While stationery has evolved to become a niche market with an assortment of supplies that cater to different customer segments, cards have transformed in their forms and functions. The economic recession of 2008-2009 drastically reduced the sales of these discretionary products. However, the market recovered strongly in 2010 because of the revival of the global economy and is expected to continue to grow at a steady pace.
关键词：文具；卡片；发展经济；生活方式改变；技术创新；电子发展
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850.全球快速消费品包装市场报告（2015-2019年）
[橡胶和塑料制品业,造纸和纸制品业,批发和零售业] [2014-12-23]
FMCG are fast moving consumer goods that are present in retail, supermarket and local retai l shops. These are physical goods that are produced and purchased to satisfy the needs of consumers. Some of its key segments are Food, Beverages, Healthcare and Medical, Cosmetics,Industrial Goods, Household Products, and Other Goods that consumers use in daily life. Food products, beverages, and drugs/medicines need preventive and durable packaging to prevent any spoilage or contamination.
关键词：快速消费品；零售；超市；防止；任何损坏；污染
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