浴室人妻的情欲hd三级,无码专区丰满人妻斩六十路,国产午夜三级一区二区三,国产精品美女WWW爽爽爽视频

濟南精美塑料包裝廠為您提供塑料袋、方便袋、塑料袋、食品塑料袋,相關(guān)信息發(fā)布和資訊展示,敬請關(guān)注!

濟南歷下精美塑料包裝廠

服務(wù)熱線: 18764138233

熱門:
常見問題

塑料袋縫合強度的要求及預(yù)防老化措施

來源:http://www.58gaofang.com/ 日期:2023-05-08

塑料袋縫合強度的要求
Requirements for stitching strength of plastic bags
濟南塑料袋在制作時如果是選用新舊質(zhì)料配混時,要特別注意混合的均勻性,而在縫合的時分,關(guān)于強度也是有嚴格要求。無強度要求的編織袋上口鎖邊一周,針距可密,線可細。關(guān)于濟南塑料袋主體銜接部的抗拉強度,要求有需要到達基本強度的67%以上,底部銜接部的抗拉強度有需要到達基本強度的42%以上。
When making plastic bags in Jinan, if new and old materials are used for mixing, special attention should be paid to the uniformity of the mixing, and there are strict requirements for strength during stitching. The upper edge of the woven bag without strength requirements is locked for one week, and the needle spacing can be dense and the thread can be fine. Regarding the tensile strength of the main connection part of Jinan plastic bags, it is required to reach over 67% of the basic strength, and the tensile strength of the bottom connection part needs to reach over 42% of the basic strength.
其實影響塑料袋縫合強度的主要因素包含縫合線的品種和類型,針距巨細,線跡,卷邊或者邊縫合線到袋邊的尺度,熱切和冷切方法等。
In fact, the main factors that affect the stitching strength of plastic bags include the variety and type of stitching thread, needle pitch, stitching, the scale of the curled or edge stitching thread to the bag edge, hot and cold cutting methods, and so on.
塑料袋老化的預(yù)防措施
Preventive measures for aging of plastic bags
1.塑料袋在自然環(huán)境下即在陽光直射的條件下,一周后其強度下降25%,兩周后會下降40%,基本上已不能運用。也就是說塑料袋的貯存保管問題非常重要。
1. In natural environments, such as direct sunlight, the strength of plastic bags decreases by 25% after one week and by 40% after two weeks, making them basically unusable. That is to say, the storage and storage of plastic bags are very important.
濟南塑料袋
2.在塑料包裝水泥后放在露天環(huán)境受陽光直射,強度會急劇下降。
2. After plastic packaging of cement, placing it in an open environment under direct sunlight will cause a sharp decrease in strength.
3.塑料袋貯運過程中溫度過高(集裝箱運送)或遇到雨淋,都會導(dǎo)致其強度下降,然后達不到維護內(nèi)裝物品的質(zhì)量要求。
3. During the storage and transportation process of plastic bags, if the temperature is too high (transported in containers) or if they encounter rain, their strength will decrease, and they will not meet the quality requirements for maintaining the contents.
4.再產(chǎn)生料的過多參加也是加強塑料袋老化的原因之一。
Excessive participation in the production of raw materials is also one of the reasons for strengthening the aging of plastic bags.
塑料袋縫合強度的要求及預(yù)防老化的措施相關(guān)事項就講解到這里了,您對此還有想了解的事項或者需求,可以隨時來我們網(wǎng)站http://www.58gaofang.com留言或者撥打電話咨詢!
That's all for the requirements for the stitching strength of plastic bags and measures to prevent aging. If you have any further questions or needs, please feel free to visit our website at any time http://www.58gaofang.com Leave a message or call for consultation!

久久久婷婷综合五月色麻豆| 国产成人一区二区三区| 蜜臀av午夜一区二区三区 | 蜜桃AV噜噜一区二区三区| 亚洲精品国偷拍自产在线观看蜜臀| 国产一区二区三区影院| 亚洲熟妇av一区| 国产精品亚洲av在线观看| 黑人97人人模人人爽人人喊 | 天堂资源中文最新版在线一区| 久久精品免费一区二区喷潮| 中文字幕AV一区| 亚洲av色情成人永久网站小说| 国产肥熟女视频一区二区三区| 久久人爽人人爽人人片AV| 色狠狠色噜噜AV天堂一区 | 亚洲乱亚洲乱少妇无码99P| av无码国产精品午夜a片| 欧美日韩免费观看| 免费观看完整视频app| 男男黄gay片免费网站www| 四虎成人精品在永久免费| 免费看成人做xxoo视频| 亚洲欧美自偷自拍另类小说| 国内精品A片XXX久久久| 男女野外做爰电影免费| 国产CHINESE男男GAY| 精品少妇无码AV无码专区| 亚洲大码熟女在线观看| 精品人妻无码一区二区三区绿| 青青青国产精品一区二区| 国内精品伊人久久久久777| 东北粗口国产床| 久久久久精品| 精品久久久久久无码人妻热| 漂亮人妻被中出中文字幕久久| 欧美肥妇BWBWBWBXX小说| 国产一区二区三区在线观看| 国产精品宅男擼66M3U8| 中文字幕亚洲欧美日韩在线不卡| 亚洲一久久久久久久久|