瓦楞紙板在消費(fèi)過(guò)程中采用臨時(shí)防水劑處理，具有臨時(shí)防水劑功能。當(dāng)水落在紙板上的時(shí)間很短時(shí)，不要弄濕成水滴，以免水滲透紙板。臨時(shí)防水劑處置紙板技術(shù)在我國(guó)已應(yīng)用近十年。這種防水劑初是從日本引進(jìn)的，日語(yǔ)的字面意思是吸水劑。
Corrugated board is treated with temporary waterproof agent in the process of consumption, which has the function of temporary waterproof agent. When the water falls on the board for a short time, do not wet it into water drops, so as to avoid water penetration into the board. The technology of temporary waterproof agent for paperboard disposal has been applied in China for nearly ten years. This kind of waterproof agent was originally introduced from Japan, which literally means water absorbent.
該涂料初用于織物纖維，后來(lái)用于紙板處理。因此，大多數(shù)的樹(shù)都用吸水劑的名字。萃取劑是一種蠟乳液,普通固體含量:48% ~ 51%,其大的特點(diǎn)是使用可用的30倍的水稀釋,然后涂上一層瓦楞紙板面正在成型,溫度約150℃干燥后,紙纖維由于包裹的醋,外觀和較低的表面張力,一層水滲透。
The coating was originally used for fabric fibers and later for paperboard processing. Therefore, most trees use the name of absorbent. The extractant is a wax emulsion. The ordinary solid content is 48% ~ 51%. Its biggest feature is that it can dilute 30 times of water that can be used, and then coated with a layer of corrugated paper. The surface of the paper is being molded. After drying at about 150 degrees, the paper fiber is permeated with a layer of water due to the wrapped vinegar, appearance and lower surface tension.
當(dāng)與水接觸時(shí)，水不會(huì)在此紙板上浸泡，形成水珠滾動(dòng)，從而達(dá)到防水效果。然而，蠟對(duì)紙纖維的附著力并不好，尤其是當(dāng)萃取劑被稀釋30倍時(shí)，其固體含量可達(dá)1.5~，紙纖維只要包上一層很薄的蠟即可。也由于蠟蠟乳液粒徑比平常普通的聚合物乳液粒徑,去紙纖維穿透深度是困難的,同時(shí)退出,一個(gè)類化學(xué)物質(zhì)敏感的代理明礬普通外觀往往很快破乳和降水在紙m,因此在紙上畫(huà)蠟粒子的本地代理只有一個(gè)薄層。
When in contact with water, the water will not be soaked in the cardboard, forming water droplets rolling, so as to achieve waterproof effect. However, the adhesion of wax to paper fiber is not good, especially when the extractant is diluted 30 times, its solid content can reach 1.5 ~, and paper fiber only needs to be coated with a thin layer of wax. Also because the wax wax emulsion particle size is higher than the usual ordinary polymer emulsion particle size, the paper fiber penetration depth is difficult, and quit, a chemical sensitive agent alum common appearance is often very fast demulsification and precipitation in paper m, so the wax coating on paper is only a thin layer of local substitute.
在外摩擦作用下，蠟很容易被摩擦掉，外露時(shí)無(wú)蠟包裹纖維，防水效果大大降低。為了增強(qiáng)蠟對(duì)紙纖維的附著力，萃取劑中往往含有松香衍生物或羧基化聚合物乳液，它們對(duì)紙纖維的附著力好，與蠟的溶解度好。
Under the external friction, the wax is easy to be rubbed off. When exposed, there is no wax around the fiber, which greatly reduces the waterproof effect. In order to enhance the adhesion of wax to paper fibers, the extraction agents often contain rosin derivatives or carboxylated polymer emulsions, which have good adhesion to paper fibers and good solubility with wax.
這樣，它們的參與可以促進(jìn)蠟對(duì)紙纖維的附著力，同時(shí)如果蠟停止對(duì)紙纖維的改性，如其氧化、堿化等，也有類似的效果，可以使蠟對(duì)紙纖維的附著力增加。但必須指出,這些措施是增加,代理在這樣一個(gè)成分濃度仍不防水膜層,所以在遇到摩擦,如紙箱在處理的過(guò)程中,疊加摩擦,往往使這個(gè)防水出現(xiàn)丟失。這就是為什么這種紙箱的涂層作為臨時(shí)防水紙箱。
In this way, their participation can promote the adhesion of wax to paper fiber. At the same time, if wax stops modifying paper fiber, such as oxidation, alkalization, etc., it has similar effect, which can increase the adhesion of wax to paper fiber. However, it must be pointed out that these measures are to increase the agent's waterproof coating at such a component concentration, so in the event of friction, such as in the process of processing cartons, superimposed friction, often makes this waterproof loss. That's why this kind of carton coating acts as a temporary waterproof carton.
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