Quantitative, also known as gram weight, refers to the weight per square meter of paper, expressed in g / m2. The quantitative planning formula is: sample weight / sample area. Quantitative is an important goal to balance the physical function of paper. Generally speaking, the paper with high quantitative has relatively high tensile strength, ring crush strength, tear, stiffness and thickness. Using high quantitative paper to make corrugated box, its compressive strength is relatively higher. Therefore, to make high-strength corrugated boxes, one of the basic requirements of customers is to select high-quality paper materials.

緊度 它是指每立方厘米紙張的分量，用g／cm3來(lái)體現(xiàn)。其策畫(huà)公式為：

Tightness refers to the weight of paper per cubic centimeter, expressed in g / cm3. The planning formula is as follows:

紙的緊度怎樣，反響了它的纖維構(gòu)造布局的疏密水平。箱板紙和瓦楞紙的緊度值高，它們的耐破度、環(huán)壓強(qiáng)度、耐拆穿和抗張功能相對(duì)就好，那么，紙箱的集體強(qiáng)度 相對(duì)也就高。可是，若緊度過(guò)大，紙材簡(jiǎn)單脆裂，尤其是白板紙，緊度值若明顯大于標(biāo)準(zhǔn)，其耐折度功能將會(huì)有所下降。

The tightness of paper reflects the density of its fiber structure. If the tightness value of cardboard and corrugated paper is high, their bursting strength, ring crush strength, tear resistance and tensile function are relatively good, then the collective strength of carton is relatively high. However, if the tightness is too large, the paper material is simple and brittle, especially the white board, if the tightness value is significantly greater than the standard, its folding function will be reduced.

所以，用白板紙作面層裱合的瓦楞紙板，不 宜接收緊度過(guò)高的白板紙，以免影響紙箱搖蓋的耐折度。

Therefore, it is not suitable for corrugated board with white board as surface layer to receive white board with too high tightness, so as not to affect the folding resistance of carton cover.

施膠度 紙張、紙板在出產(chǎn)時(shí)，施加必定量的松香膠等耐水性的膠體物后，使紙面增加抗水性，這種出產(chǎn)加工工藝稱(chēng)為施膠。施膠度是權(quán)衡膠量巨細(xì)的質(zhì)量目標(biāo)，依據(jù)國(guó)度標(biāo) 準(zhǔn)，可接收墨水劃線法和表面汲取分量法舉辦檢測(cè)。工場(chǎng)也可敷衍了事，用“滴水法”檢測(cè)紙面的施膠度。其做法是：在紙面滴一點(diǎn)水，若水點(diǎn)洇滲速率快，說(shuō)明施 膠度欠好；若水點(diǎn)不易呈現(xiàn)洇滲征象，水珠浮在紙面上，說(shuō)明施膠度就好。制作瓦楞紙箱的原紙，要求施膠度要好，多么不易吸濕，紙箱的含水率安定，可較好地保 證紙箱的強(qiáng)度。

Sizing paper, paperboard in the production, the application of a certain amount of rosin and other water-resistant colloidal matter, so that the paper surface to increase water resistance, this production process known as sizing. Sizing degree is the quality target to weigh the size of sizing amount. According to the national standard, it can be detected by ink marking method and surface absorption component method. Workshop can also be perfunctory, with the "dripping method" to detect the sizing degree of paper. The method is: drop a little water on the surface of the paper, if the water point bleeding rate is fast, it means that the sizing degree is not good; If the water spot is not easy to show the sign of bleeding, and the water drops float on the paper surface, it means that the sizing degree is good. The base paper for making corrugated box requires good sizing degree, how difficult it is to absorb moisture, and the moisture content of the box is stable, which can better ensure the strength of the box.

含水率 所謂含水率是指紙或紙板中水分的含量，用百分比體現(xiàn)，其查驗(yàn)的策畫(huà)公式為：

Moisture content the so-called moisture content refers to the moisture content of paper or paperboard, which is expressed in percentage. The planning formula for checking is as follows:

含水率成為紙箱的三個(gè)重要缺點(diǎn)查驗(yàn)項(xiàng)目之一的重要原因原由。當(dāng)紙箱的含水率偏高時(shí)會(huì)使得其耐拆穿抗壓強(qiáng)度和耐破 強(qiáng)度等功能會(huì)有所下降。瓦楞紙具有必定的耐壓、抗張、耐折功能和抗拆穿，水分含量過(guò)高會(huì)使得紙質(zhì)就顯得柔軟、挺度差，壓楞和粘合質(zhì)量也差。要是水分明顯低于下極限標(biāo)準(zhǔn)值時(shí)，壓楞時(shí)就簡(jiǎn)單呈現(xiàn)破碎征象。要是瓦楞紙和箱板紙的水分含量懸殊過(guò)大時(shí)，單面機(jī)加工出來(lái)的瓦楞紙板，就簡(jiǎn)單呈現(xiàn)彎曲，下工序裱適時(shí)就簡(jiǎn)單呈現(xiàn)起泡和脫膠征象，使紙箱的強(qiáng)度明顯下降。

Moisture content has become one of the three important shortcomings of carton inspection items. When the moisture content of the carton is too high, it will make the function of bursting strength and bursting strength decline. Corrugated paper has a certain pressure, tension, folding function and tear resistance, too high moisture content will make the paper appear soft, poor stiffness, corrugated and bonding quality is also poor. If the moisture content is obviously lower than the lower limit standard value, it will simply show the sign of breakage when pressing. If the moisture content difference between corrugated paper and cardboard is too large, the corrugated paper produced by single-sided machining will simply show bending, and the next mounting process will simply show signs of blistering and degumming, so that the strength of the carton will be significantly reduced.

耐折度 紙箱作為一種包裝容器，其搖蓋需常常作開(kāi)啟運(yùn)動(dòng)，這就要求紙材應(yīng)具有必定的耐折身手。紙的橫向耐折度是測(cè)定紙?jiān)诒囟ǖ膹埩Α⑺俾屎鸵朁c(diǎn)條件下，對(duì) 150?15mm標(biāo)準(zhǔn)的試樣作1350角的往復(fù)性折疊實(shí)驗(yàn)，當(dāng)紙樣開(kāi)裂時(shí)，即為耐折度的查驗(yàn)次數(shù)。制作箱板紙和折板紙的漿料特性、紙的含水率、緊度、纖維長(zhǎng)度和聯(lián)協(xié)力的牢度以及原紙受寄存時(shí)刻和溫度等要素的影響，很大水平上決定著原紙的耐折度。要前進(jìn)紙箱的耐折度功能，做好原材料的質(zhì)量把關(guān)是重要的一環(huán)。

Folding carton as a kind of packaging container, its swing cover often needs to be opened, which requires that the paper material should have a certain folding ability. The lateral folding resistance of paper is to measure the bending resistance of 150? Mm paper under certain tension, speed and viewpoint conditions? When the paper sample is cracked, it is the inspection times of folding resistance. The properties of pulp, moisture content, tightness, fiber length and joint fastness, and the influence of storage time and temperature on the folding resistance of base paper are the key factors for making cardboard and folding paper. In order to improve the folding function of cartons, it is important to control the quality of raw materials.

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