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://m.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
    91人人妻人人澡人澡| 亚洲中码人妻中文字幕| 日本少妇丰满高清做爰直播| 加勒比色综合久久久久久久久| 国产高潮精品久久av| 亚洲天堂av免费在线| 熟女人妻五十路六十路| 精品黑人一区二区三区| 美腿玉足国产日韩久久| 91亚洲国产成人精品性色| 国内熟女午夜福利视频| 国产成人亚洲精品无码影院bt| 久久亚洲这里只有精品| 在线观看日本视频一区二区| 激情偷拍一区二区三区| 亚洲一区二区三区熟女少妇| 欧美日韩精品免费一区二区三区| 超碰香蕉在线在线观看| 日本十八禁一区二区精品| 久久综合久久综合久久综合久久| 日本中文字幕精品一区| 激情偷拍自拍在线观看| 强伦人妻一区二区三区视频18| 国产精品久久毛片香蕉| 亚洲成人午夜激情四射影院| 国产精品96久久av色婷| 97久久精品人人澡人人爽| 日本高清不卡二区三区| 成人18禁深夜福利网站app免费| 亚洲欧美日韩国产专区一区| 欧美久久精品中文字幕一区| 日本大香伊一区二区三区| 日韩精品一区免费电影| 强奷漂亮人妻系列老师| 中文字幕有码高清日韩| 女人高潮抽搐喷液30分钟视频| 性生大片免费观看高清视频| 免费观看日韩搞逼毛片| 亚洲一区二区三区天堂| 无套内射在线观看视频| 日韩不卡手机视频在线观看|