午夜福利高潮内射精品,国产乡下三级全黄三级,韩国美女福利专区一区,国产一区精品在线播放,亚洲天堂资源在线观看,四虎在线观看福利视频,人妻人妻一区二区三区,亚洲午夜精品福利一区,四虎永久精品免费在线,四虎视频精品免费观看

<sup id="ykokq"></sup>
  • <blockquote id="ykokq"></blockquote>
  • <strike id="ykokq"><menu id="ykokq"></menu></strike>
  • <strike id="ykokq"></strike>
    <ul id="ykokq"></ul>
  • <ul id="ykokq"></ul>
  • 蔬菜包裝廠家   歡迎進(jìn)入山東國泰民灃包裝科技有限公司網(wǎng)站,專注紙托盤,瓦楞紙箱,蔬菜包裝,重型紙箱包裝制作廠家,實(shí)惠!
    重型紙箱廠家
    瓦楞紙箱廠家
    蔬菜包裝廠家

    提高瓦楞紙箱的防潮性能需要從哪些方面注意?

    來源:http://www.zywygg.com 發(fā)布時間:2020-09-15

    1.建議改用防水防潮效果更好的原紙,特別是起坑的瓦紙。檢驗(yàn)原紙的防水效果如何,可通過可勃儀測試原紙的表面吸水性,一般表面吸水度在50克/平米(60S)以下時,防水防潮效果較好。通常,造紙廠為了提高原紙表面防水性,在造紙工藝中需要提高表面施膠淀粉糊液中防水助劑的比例。
    1. It is suggested to use the base paper with better waterproof and moisture-proof effect, especially the tile paper with pit. In order to test the waterproof effect of base paper, the surface water absorption of base paper can be tested by the Cobb instrument. Generally, when the surface water absorption is below 50g / m2 (60s), the waterproof and moisture-proof effect is better. Generally, in order to improve the surface waterproof property of base paper, the proportion of waterproof additives in the surface sizing starch paste solution should be increased in the papermaking process.
    2.在紙箱生產(chǎn)加工過程中,應(yīng)盡量去除紙箱內(nèi)的水份。原紙倉庫盡量與室外隔絕,避免倉庫內(nèi)部空氣潮濕。制糊時增加粉的含量,減少上膠量,可減少紙箱的水份。另外增加硼砂比例也會改善瓦楞紙板的手感。減少過紙?zhí)鞓虻募埌宥逊e量,放慢車速,特別是瓦楞紙板堆疊后進(jìn)行充分抽濕。
    2. During the production and processing of cartons, the moisture in cartons should be removed as much as possible. The base paper warehouse should be isolated from the outside as far as possible to avoid the humidity inside the warehouse. When making paste, increase the content of powder, reduce the amount of glue, can reduce the moisture of the carton. In addition, increasing the borax ratio can also improve the feel of corrugated board. Reduce the stacking amount of paperboard across the paper overpass, slow down the speed, especially fully dehumidification after stacking corrugated paperboard.
    3.儲存環(huán)境,下線后的紙板應(yīng)該在抽掉尚未散掉的蒸氣,避免溫差形成凝水現(xiàn)象,儲存紙板或紙箱的環(huán)境保持通風(fēng)透氣,紙板紙箱避免放在地面,采用墊板(托盤、夾板)承起。存放中注意相互間的間隙,以利于通風(fēng)散熱。
    3. Storage environment: the off-line cardboard should be drained of the steam that has not been dispersed to avoid condensation caused by temperature difference. The environment for storing cardboard or cartons should be kept ventilated. The cardboard boxes should not be placed on the ground and should be supported by base plates (pallets and splints). Pay attention to the space between each other during storage to facilitate ventilation and heat dissipation.
    瓦楞紙箱廠家
    4.在產(chǎn)品交貨過程中,有的使用敞篷貨車運(yùn)輸,有的使用廂式貨車。通常后者比前者更能保護(hù)紙板紙板的干燥,避免及減少回軟。
    4. In the process of product delivery, some use open truck transportation, some use van. Generally, the latter can protect the drying of paperboard better than the former, avoid and reduce the softening.
    5.瓦楞紙板從紙板流水線下線之后應(yīng)盡快進(jìn)入下道工序,周期越長,紙板發(fā)揮容易吸收空氣中的水份而回軟。要盡量縮短紙箱在生產(chǎn)加工過程中的停留時間,避免暴露在潮濕空氣中的時間過長而回軟。車間也應(yīng)該與室外進(jìn)行適度隔離,避免水汽直接吹進(jìn)車間。
    5. The corrugated board should enter the next process as soon as possible after it is offline from the paperboard assembly line. The longer the cycle is, the easier the paperboard will absorb the moisture in the air and return to soft. The residence time of cartons in the process of production and processing should be shortened as far as possible, so as to avoid being exposed to humid air for too long and return to soft. Water vapor should be isolated from the workshop directly.
    感謝您的閱讀,此文的文章來源: 瓦楞紙箱廠家更多的內(nèi)容和問題請點(diǎn)擊:http://www.zywygg.com 我們會繼續(xù)努力的為您提供服務(wù),感謝您的支持!
    Thank you for your reading. This article is from corrugated box manufacturers. For more information and questions, please click: http://www.zywygg.com  We will continue to work hard to provide services for you, thank you for your support!
    相關(guān)標(biāo)簽: 重型紙箱廠家、瓦楞紙箱廠家、托盤廠家蔬菜包裝廠家、

    相關(guān):

    返回頂部
    国产精品久久久久久人四虎| 国产精品91麻豆视频| 日韩 高清 一区二区| 日韩在线不卡免费视频| 日韩国产欧美视频二区| 四虎精品在线免费观看| 日本熟女体内射精视频| 特大毛片毛片免费视频| 国产亚洲免费精品视频| 亚洲午夜视频未满十八| 少妇口爆视频在线播放| 日本加勒比不卡二三四区| 小明发布成人永久免费| 欧美精品亚洲午夜福利2区| 美女深喉口爆吞精视频| 国产精品三级黄色片| 亚洲国产精品久久久久久99| 国产农村一区二区三区| 午夜福利国产精品不卡| 四虎精品永久免费视频| 粉嫩一区二区三区精品视频| 天天综合色天天综合网| 久久精品色一情一乱一伦| 一级黄色大片免费在线| 麻豆精品三级国产国语| 国产成人精品午夜一区| 日韩一二三四区精品电影免费播放| 日本啊啊啊在线观看| 亚洲首页激情在线观看| 亚洲成人午夜激情四射影院| 国产一级黄色录像大片| 国产又长又爽又猛又粗视频| 91人人澡人人妻人人澡| 欧美日韩精品综合在线一区二区| 精品国语对白成人久久| 一区二区三区乱码av| 淫色网大色网五月天| 午夜亚洲乱码伦小说区69堂| 国语自产精品视频二区在线| 午夜国产福利在线播放| 午夜福利久久国产精品|