你可知一次性手套后期处理方式有哪些?

After gloves are manufactured, they need to be finished to facilitate donning and doffing. The material of gloves often makes it difficult for users to don without some type of finishing technique. Now there are several different ways to go about finishing a glove, including polymer coating, chlorination and polyurethane finishes.

在经过清洗手模、乳胶浸渍、卷边及脱卸的程序后,基本完成了一次性手套的制作。但由于手套材质的原因,还得进行最后一步才能让其在应用过程中便于穿戴。有很多方法来完成来完成这最后一步,比如施粉、氯化、使用高分子涂层或采用聚氨酯饰面。

Powdering

Powdered gloves, as the name implies, use a powder coating to help users don and doff disposable gloves by absorbing excess moisture on the hands. Powdering takes place following manufacturing. In the past, gloves had powdered formers, making powder a byproduct of manufacturing. Due to advancements in manufacturing technology, gloves are powdered with food-grade cornstarch, before they are taken from their formers and turned inside out. Powdered gloves are not suitable in situations where the powder could interfere with biological and chemical processes, such as chemical sealing or wound closure. Powder also damages paints and varnishes by leaving a residue behind. For this reason, manufacturers have adopted alternative ways to finish gloves.

施粉,顾名思义,就是在使用手套时,粉末会吸收掉使用者手上多余的水分,而使其便于穿脱。粉末,生产完成的副产品;在过去,大多数是有粉手摸,所以生产出的手套本身就带有粉末。

施粉

伴随着技术的进步,手套上会先施以食品级的玉米淀粉,再将手套从手摸上由外向内地脱下来。

但有粉手套并不适用于生物科学和化学处理实验室等环境,比如进行化学密封时或在进行伤口闭合处理时,会产生一定的影响。粉末也同样会影响绘画和清漆工艺的效果。所以,生厂商们采取了另外一些方法。

Chlorination

Chlorination is a finishing method for powder free gloves. Manufacturers wash gloves in a chlorine gas or a solution of hypochlorite and hydrochloric acid. Gloves are then rinsed to prevent the chemical from interacting with the glove further. The solution reduces the surface tackiness of the glove and also gives it a softer texture. When used on latex, the chlorination process also reduces the amount of latex proteins, to make them less likely to cause an allergy. One thing to keep in mind is that chlorination slightly reduces the shelf life of products because the chemicals break down the glove material. This method was developed for latex gloves, but new advancements in technology have made the process available for nitrile gloves.The AMMEX Gloveworks Heavy Duty orange Nitrile Glove is an example of a chlorinated glove.

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氯化

氯化属于手套的无粉处理方式。厂商先会使用氯气溶液或次氯酸盐溶液清洗手套,接下来对手套进行冲洗,以防止化学溶液和手套发生反应。这种工艺减少了粉末在手套的粘着量,也使手套的质地相对更为柔软。

这种工艺适用于乳胶实验手套时,会减少乳胶中乳胶蛋白的含量,减少(穿戴者)的过敏几率。这种方式也有弊端,会缩短手套的使用生命周期,因为化学溶液破坏了手套的成分。

这种工艺原先是为乳胶手套而开发,随着技术的进步,丁腈无粉手套问世,这种工艺同样适用于丁腈手套。AmmexGloveworks重型橙色丁腈手套就是氯化手套的范例。

Polymer coating

The majority of disposable gloves on the market are now powder free. Applying a polymer coating is a more recent method: Manufacturers use polymers, such as silicones, acrylics and hydrogels, to make gloves easier to don. The polymer coating has less surface friction than the glove material, which makes it slip on the hand more easily. The polymer is generally applied while the glove is still on the former. Polymer coating is most frequently used on nitrile and latex. For example, AMMEX GlovePlus Black Nitrile Gloves are polymer coated.

高分子涂层

在市场上,一次性PE手套大多是无粉的,多亏了全新工艺高分子涂层的广泛引用。这些涂层包含:聚合物,如硅树脂,丙烯酸树脂和凝胶,能使手套更易穿戴。这是因为该聚合物涂层的表面摩擦比手套材料小,这样它在手上就更易滑动。

在手套还在手模上时,就会涂上这些高分子涂层,这种工艺最常用于丁腈和乳胶手套。例如,Ammex Gloveplus黑色丁腈手套就使用了高分子涂层。

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Polyurethane

A polyurethane coating on the inside of the gloves reduces tackiness, making the glove easier to don and doff. Polyurethane is most frequently used on vinyl gloves.

聚氨酯

聚氨酯涂在手套内部,能降低粉末在手套上的粘着量,使手套更易于穿脱。聚氨酯最常用于乙烯基手套。 

Finishes allow glove users to don and doff with ease, creating a seamless experience as they change gloves. Finishes, particularly chlorination, also make the glove softer for people who need to work with their hands all day. These processes also reduce latex proteins that lead to allergies and irritation. Simply put, finishing makes disposable gloves easier and more comfortable to wear. 

手套的后期处理工艺使其穿脱自如,用户可以在穿戴手套时获得无缝体验。特别是氯化工艺,对于需要一整天戴用手套的工作者来说,手感会更加柔软。这些工艺同样也能降低乳胶蛋白导致的过敏和刺激。

总之,“施粉、氯化、高分子涂层、聚氨酯”四大处理工艺能使一次性实验手套佩戴更容易,更舒适。

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