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,實惠!
    重型紙箱廠家
    瓦楞紙箱廠家
    蔬菜包裝廠家

    防水瓦楞紙箱的性能要求是什么

    來源:http://www.zywygg.com 發(fā)布時間:2020-05-15

      瓦楞紙箱的抗壓強度,抗壓強度又有多高,它是紙箱,怕水就怕潮。瓦楞紙箱防水性能尤為重要,也是圍繞的主題。瓦楞紙箱廠家為大家講解防水瓦楞紙箱的性能要求。
      Corrugated box compressive strength, compressive strength and how high, it is a box, afraid of water, afraid of moisture. Corrugated box waterproof performance is particularly important, but also around the theme. Corrugated box manufacturers to explain the performance requirements of waterproof corrugated box.
    瓦楞紙箱廠家
      吸水率是評價瓦楞紙箱防水性能的重要技術(shù)指標(biāo),吸水率越小,防水性能越好。根據(jù)標(biāo)準(zhǔn)GB/T 13024-2003《箱板》的規(guī)定,箱板正面吸光度≤35g/m2,為一級產(chǎn)品,且≤40g/m2為一級產(chǎn)品。而吸水檢測可按標(biāo)準(zhǔn)GB/T 1540-2002《紙張和紙板吸水測定方法》進行,浸泡時間一般為2min。
      Water absorption is an important technical index to evaluate the waterproof performance of corrugated box. The smaller the water absorption, the better the waterproof performance. According to the national standard GB / T 13024-2003 "box board", the front absorbance of box board is ≤ 35g / m2, which is a class I product, and ≤ 40g / m2 is a class I product. However, the water absorption test can be carried out according to the national standard GB / T 154-2002 paper and board water absorption test method, and the soaking time is generally 2 minutes.
      而瓦楞紙箱的防潮、防水性能,主要取決于涂層的質(zhì)量和涂層的厚度及均勻性的控制。根據(jù)包裝防護等級的不同,我公司一般要求防潮瓦楞紙箱涂布量≤3g/m2,防水瓦楞紙箱涂布量≥15g/m2。
      The moisture-proof and water-proof performance of corrugated box mainly depends on the quality of coating, the thickness and uniformity of coating. According to the different degrees of packaging protection, our company generally requires the coating amount of moisture-proof corrugated box ≤ 3G / m2, and the coating amount of waterproof corrugated box ≥ 15g / m2.
      經(jīng)測試,瓦楞紙箱廠家研發(fā)的型瓦楞紙箱防水防水油包覆量≥12g/m2,采用的吸水量測量方法僅為0.2g/m2,遠低于同行業(yè)的10g/m2的吸水量,具有很好的防水效果。
      After testing, the water-proof and waterproof oil coating amount of the environmental friendly corrugated box developed by the corrugated box manufacturer is ≥ 12g / m2, and the water absorption measurement method used is only 0.2g/m2, far lower than the water absorption amount of 10G / m2 in the same industry, which has a good waterproof effect.
     
    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
    亚洲国产日韩av在线| 嫖妓大龄熟妇正在播放| 饥渴少妇高潮视频大全| 国产性色av大片免费看的| 青青草中文字幕在线视频| 日韩性生活视频在线观看| 国产萝控精品福利在线| 中文字幕黄色一区二区| 国产精品一线二线在线| 亚洲精品岛国片在线观看| 日本精品午夜视频在线观看| 亚洲中文字幕人妻一区二区| 蜜桃午夜一区二区三区| 国产精品v欧美精品∨日韩| 国产成人噜噜噜久久久久| 四虎精品在线免费观看| 五十路大屁股中年熟女| 嫩b人妻精品一区二区三区| 国精品人伦一区二区三区在线蜜桃| 亚洲国产免费图区在线视频| 成年人免费久久毛片| 欧美日韩一区二区三区四区高清视频| 国产老熟女精品视频大全免费| 人妻人人做人做人人爱| 亚洲国产综合精品2020| 色悠悠久久综合网站| 国产男女激情久久久| 亚洲精品国产后入内射| 亚洲欧洲国产综合在线| 粉嫩在线一区二区懂色| 亚洲黑人一区二区三区| 中国亚州女人69内射少妇| 久久人妻精品大奶一区二区| 男女边吃奶边做的视频| 国产精品一级一区二区三区| 久久中精品中文字幕入口| 男女啪啪视频免费国产| 亚洲精品国产成人久久| 日本一区二区三区精彩视频| 青青草成人在线视频免费观看| 毛片av在线播放亚洲av网站|