什么是EVA？(2010/09/20 15:20)

EVA是一种塑料物料由乙烯(E)及乙烯基醋酸盐(VA)所组成。这两种化学物质比例可调较从而符合不同的应用需要，乙烯基醋酸盐 (VA content) 的含量越高，其透明度，柔软度及坚韧度会相对提高。
EVA及PEVA的特点是:
1、可生物降解:弃掉或燃烧时不会对环境造成伤害。
2、EVA的价格比有毒的PVC较贵。
3、重量较轻:EVA的密度介乎0.91至0.93，而PVC则为1.32。
4、不含臭味:EVA不含像阿摩尼亚(ammonia)或其它有机气味。
5、不含重金属:符合有关国际的玩具条例(EN-71 Part 3及ASTM-F963)。
6、不含邻苯二甲酸盐:不会产生增塑剂释出危险。
7、高透明，柔软及坚韧度:应用范围十分广阔。
8、超强耐低温(-70C):适合结冰环境。
9、抗水，盐份及其它物质:在大份的应用情况下都能保持穏定。
10、高热贴性:可牢固地贴于尼龙，涤纶，帆布及其它布类。
11、低贴合温度:可加快生产速度。
12、可丝印及柯式印刷:可用于更多花巧的产品(但必须用EVA类的油墨)。

What is EVA? (2010/09/20  15:20)

EVA is a kind of plastic material by ethylene (E) and vinyl acetate (VA) of salt. These two chemicals adjustable to comply with a proportion of different applications, vinyl acetate salt (VA content) content is higher, its transparency, softness and toughness will be relatively improve.

EVA and PEVA features are:

1, biodegradability: rejected or burns won't harm the environment.

2, EVA price is poisonous PVC is more expensive.

3, light in weight: EVA between the density of 0.91 to 0.93, and PVC is 1.32.

4, does not contain the stink: EVA do not contain the like Virginia o (ammonia) or other organic smell.

5, does not contain the heavy metal: comply with the relevant international toy ordinance (EN-71 Part 3 and ASTM-F963).

6, does not contain the phthalic acid salt: won't produce plasticizer release dangerous.

7, high transparent, soft and toughness: application scope is very promising.

8, super low temperature resistance (70 C) : suitable for icy environment.

9, resistance to water, salt and other material: in the application of a big keep one set.

10, high ReTie sex: can firmly stuck on the nylon, polyester, canvas and other cloth kind.

11, low joint temperature: can speed up production.

12, can screen printing and offset printing: can be used for more beautiful artful products (but must use of EVA ink).