一、阻隔功能
1、 Barrier function
紙和紙板屬于多孔性纖維材料，對水分、氣體、光線、油脂等具有必定程度的滲透性，且其阻隔性受溫濕度的影響較大，可以經(jīng)過恰當(dāng)?shù)耐獗砑庸頋M意其阻隔功能的要求。
Paper and paperboard are porous fiber materials, which have a certain degree of permeability to moisture, gas, light, grease and so on, and their barrier property is greatly affected by temperature and humidity, so they can be processed properly to meet the requirements of barrier function.
二、加工功能
2、 Processing function
紙和紙板具有杰出的加工功能，可折疊處理，并可采用多種封合方法，簡單加工成具有各種功能的包裝容器，簡單實(shí)現(xiàn)機(jī)械化加工操作。別的經(jīng)過恰當(dāng)?shù)耐獗砑庸ぬ幚?，可以為紙和紙板供給必要的防潮性、防蟲性、阻隔性、熱封性、強(qiáng)度及物理功能等，擴(kuò)大其使用范圍。
Paper and paperboard have outstanding processing function, folding processing, and can use a variety of sealing methods, simple processing into a variety of functional packaging containers, simple realization of mechanical processing operation. After proper surface processing, paper and paperboard can be provided with necessary moisture-proof, insect proof, barrier, heat sealing, strength and physical functions, so as to expand its application range.
三、機(jī)械功能
3、 Mechanical function
紙和紙板具有必定的強(qiáng)度、挺度和機(jī)械適應(yīng)性，它的強(qiáng)度巨細(xì)首要決定于紙的材料、質(zhì)量、厚度、加工工藝、外表情況及必定的溫濕度條件等;別的紙還具有必定的折疊性、彈性及撕裂性等，適合制作成型包裝容器或用于裹包。
Paper and paperboard have a certain strength, stiffness and mechanical adaptability. Its strength mainly depends on the paper material, quality, thickness, processing technology, appearance and certain temperature and humidity conditions; other paper also has certain folding, elasticity and tearing properties, which are suitable for forming packaging containers or wrapping.
四、衛(wèi)生功能
4、 Health and safety function
在紙的加工過程中，尤其是化學(xué)法制漿，通常會殘留必定的化學(xué)物質(zhì)，因而有必要根據(jù)包裝內(nèi)容物來正確合理選擇各種紙和紙板。
In the process of paper processing, especially in chemical pulping, there are always some chemical residues. Therefore, it is necessary to select various kinds of paper and paperboard according to the contents of the package.
五、印刷功能
5、 Printing function
紙和紙板吸收和粘結(jié)油墨的能力較強(qiáng)，印刷功能好，因而在包裝上常用作印刷外表。紙和紙板的印刷功能首要決定于外表平滑度、施膠皮、彈性及粘結(jié)力等。
Paper and paperboard have strong ability to absorb and bond ink and have good printing function, so they are often used as printing appearance on packaging. The printing function of paper and paperboard mainly depends on the surface smoothness, rubber application, elasticity and adhesion.
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