日韩乱码人妻无码系列中文字幕,女人和公猪交内射,亚洲av精品一区二区三区,中文字幕在线亚洲精品

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
當(dāng)前位置:首頁-新聞資訊-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.lusp7.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(yán)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(xì)。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(dá)基本強度的67%以上,底部銜接部的抗拉強度有需要到達(dá)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(xì),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(dá)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.lusp7.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.lusp7.com Leave a message or call for consultation!

亚洲欧美中文日韩v在线| JAPANESEHD熟女熟妇| 久久综合亚洲欧美成人| 国产在线拍小情侣国产拍拍偷| 成人精品视频99在线观看免费| 欧美老妇xxxxx性开放| 男女啪啪做爰高潮全过有多少姿势| 中文字幕人妻丝袜二区| 亚洲无码在线播放| 日韩电影免费在线观看网址 | 精品人妻无码一区二区三区不卡 | 巜疯狂的少妇4做爰| 久久久久亚洲av片无码| 人人添人人澡人人澡人人人人| 国内精品久久久久影院一蜜桃| 二区国产好的精华液单品榜| 亚洲a片成人无码av| 久久久久免费毛a片免费| xxxx漂亮少妇xxxxhd| 美女下部私密的图片无遮挡| 熟女丰满老熟女熟妇| 日本肉体裸交xxxxbbbb| 久久AV无码精品人妻出轨| 中文字幕 一区二区三区| yin荡的人妻美妇系列| 一边摸一边抽搐一进一出视频| 五月香丁激情欧美啪啪| 短篇公交车高h肉辣全集目录| 欧洲熟妇乱xxxxx大屁股7| 亚洲av成人片色在线观看高潮| 办公室双腿打开揉弄高潮女明星| 男女野外做爰电影免费| 亚洲国产av无码精品无广告| 国产乱了真实在线观看| 边亲边脱边捏胸视频| 国产精品久久久久久无码不卡| 亚洲中文久久精品无码| 黄金网站免费下载安装| 久久久久亚洲AV成人片| 国产精品ⅴ无码大片在线看| 人妻换人妻仑乱|