de-laminate 一般指多层复合材料(laminated material)变得不再 laminated。也就是多层原材料不在一起,分开了,也就是脱层。这个词很少很少会指撕裂之类的问题。正如psnake 所说 Ultra 和DCF 都是膜防水:在UHMWPE上贴了一层薄薄的膜。palante 也提到:The 200 Ultra backing is .5mil (.5oz) recycled polyester film. This is laminated to the Ultra weave for waterproofness and bias stability. 但是这个UHMWPE + polyester film的贴合很难做。很多人怀疑这个贴合的不稳。所以palante 做了一些实验:在400D的ULTRA材料上(Desert Pack 用料)
(1)放在零下12C 12小时(2)柔成一团然后展开 (3)放洗衣机搅动40min(4)高温烘干1小时。这一通操作下来没有发现任何delaminate 脱层问题。 测试到这里基本上对这个材料的laminate性能表示认可 并不是所有复合材料laminate material 可以扛住着一桶操作。Xpac 就完全扛不住 (Xpac是尼龙+ 聚酯纤维的结构)。给的图片链接可以明显看在在高压的部分,Desert Pack这个防水的膜开始有点脱落的迹象。猜测是密集的针眼使得这个膜和UHMWPE的贴合出现松动。更严重的分层会从这些缝纫过的地方开始发展。所以推荐贴住缝纫过的部分。
palante 原文
Some people have asked about the laminating quality of the Ultra fabric, as they know it is hard to stick to the UHMWPE fiber. Here’s some info you can share with your customers:
We tested the 400d version, which is in the new Pa’lante packs:
We first put a bag made with Ultra 400 outside for 12 hours at -12C (10F).
The bag was scrunched-up into a ball, then smoothed out: no delamination.
The fabric was then put in washing machine for a 40 minute cycle:, fill/agitate/spin/fill/agitate/spin: no delamination.
The Ultra 400 was then machine dried for 1 hour at high heat: after checking, no delamination.
For reference, there are not many laminated pack fabrics that can pass these tests; certainly not X-Pac which has nylon face fabric laminated to polyester backing.