不干膠標簽是目前應用普遍的標簽,但它的構造并不簡單。典型的不干膠標簽由五層組成,包括:
Self-adhesive label is the most widely used label at present, but its structure is not simple. Typical adhesive labels consist of five layers, including:
一層——外表資料,或稱原料,用于記載或印刷圖文信息。
The first layer, appearance data, or raw materials, is used to record or print graphic information.
第二層——底漆,或稱增粘涂層,能夠使粘合劑和外表資料更嚴密地分離。底漆同時也有避免化學試劑浸透的作用,否則化學試劑可能會從底下的三層浸透過來,弄臟標簽外表。另外,彩色底漆也可用作透明外表資料的背景。
The second layer, primer, or tackifier coating, enables a closer separation of adhesives and appearance data. Primer also has the effect of avoiding chemical reagent immersion, otherwise the chemical reagent may be immersed from the bottom three layers to dirty the label appearance. In addition, color primers can also be used as backgrounds for transparent appearance data.
第三層——標簽的膠粘劑。在撕去標簽外表襯紙、將標簽貼到某物體外表之前,膠粘劑將外表資料與涂有硅樹脂的襯紙別離開。
Layer 3 - Adhesive for labels. Before tearing off the outer lining of the label and pasting the label on the surface of an object, the adhesive keeps the appearance information away from the silicone-coated lining.
第四層——硅樹脂涂層,用于確保標簽與襯紙容易分開。
The fourth layer, silicone coating, is used to ensure that labels and linings are easily separated.
第五層——襯紙,維護標簽在運用前不被粘污,通常由漂白或原色的Kraft紙(偶然也會用潔凈的聚酯資料)加工而成。襯紙還有支撐的作用,保證在處置標簽的過程中,標簽不會彎曲或卷曲。
Layer 5 - Paper lining, which maintains that the label is not dirty before use, is usually made of bleached or pristine Kraft paper (occasionally clean polyester material). Paper lining also serves as a support to ensure that the label does not bend or curl in the process of handling the label.
固然不干膠標簽用處普遍,深受大家歡送,但它不是在任何環境下都能適用。例如,在冷凍食品包裝和其他高速操作時,采用熱封標簽更為、經濟。
Although the non-sticker label is widely used and welcomed by everyone, it can not be applied in any environment. For example, in frozen food packaging and other high-speed operations, the use of heat-sealed labels is more efficient and economical.
粘性測試的重要性
Importance of Viscosity Testing
不同類型的不干膠標簽在運用之前,測試膠粘劑的類型是很重要的,看看這種膠粘劑是屬于不干膠,熱封膠還是涂膠水紙。有些膠粘劑會與特定物質發作化學反響。例如,用作標牌的不干膠標簽在特定條件下會污染某些特殊的織物。有些需求短暫粘性的標簽在曝光條件下會產生耐久的粘性。而另一方面,某些需求有耐久粘性的標簽在某些外表卻會失去粘性。
It is important to test the type of adhesives for different types of non-drying labels before they are used. See if the adhesives belong to non-drying adhesives, heat sealants or glued paper. Some adhesives react chemically with specific substances. For example, non-drying glue labels used as labels can contaminate certain special fabrics under certain conditions. Some labels that require temporary stickiness produce durable stickiness under exposure conditions. On the other hand, some labels with durable stickiness will lose stickiness in some appearances.
在再生紙的外表運用不干膠標簽和其他標簽時,經常會呈現問題。在停止循環加工的過程中有多種不同紙張,有些紙張會被硅或蠟的涂層污染,這樣混合加工就污染了終的再消費品。在這些被污染的再生紙外表運用標簽時,膠粘劑常常會失去作用。留意:不干膠標簽中硅樹脂涂層的作用是確保不干膠容易地脫離襯紙。
Problems often arise when self-adhesive labels and other labels are used on the surface of recycled paper. There are many different kinds of paper in the process of stopping recycling. Some paper will be contaminated by the coating of silicon or wax, so the mixed processing will contaminate the final consumer goods. Adhesives are often ineffective when labeling the appearance of contaminated recycled paper. Note: The role of silicone coatings in sticker labels is to ensure that the sticker is easily detached from the lining.
溫渡過低也會招致問題發作。低溫降低了粘結的速度,在膠粘劑粘牢外表之前,標簽可能曾經從外表剝落下來了。假如標簽貯存不當——環境溫差大,濕度動搖大,或者堆放不當——標簽運用之后很快會失去粘性。
Low temperatures can also cause problems. Low temperatures reduce the speed of bonding, and the label may have peeled off the surface before the adhesive adheres to the surface. If the label is stored improperly --- the ambient temperature difference is large, the humidity is shaken, or the stacking is improper --- the label will lose its stickiness soon after it is used.
有效運用不干膠標簽的主要要素之一是正確地將不干膠從襯紙外表剝開。
One of the most important factors in the effective use of sticker labels is to peel the sticker from the outside of the lining paper correctly.
很多人都錯誤的從標簽左角或右角揭開拉下,這樣會削弱接觸局部不干膠的粘性,而且還會毀壞資料中的“外表纖維”,使標簽卷曲。
Many people mistakenly pull the label from the left or right corner, which will weaken the stickiness of contact with local adhesive, but also destroy the "external fibers" in the data, making the label curl.
從襯紙外表扯開不干膠標簽的正確辦法是:盡量堅持標簽的平直,從頂端或底端的中心剝開襯紙,能夠保證標簽很好地粘結到物體外表。
The correct way to tear off the sticker label from the outside of the liner is to stick to the straightness of the label as far as possible and peel the liner from the center of the top or bottom to ensure that the label sticks well to the outside of the object.