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　　牛皮纸的印刷特性

　　Printing characteristics of kraft paper

　　通常牛皮纸有两种基本颜色，棕色和白色。白纸经过化学技术漂白，通常用于印刷，而棕色牛皮纸用于更多包装。白色牛皮纸包装具有健康安全、环保、性价比高等诸多优点。它完全采用木浆生产，来自人工林场而不是天然林，白色牛皮纸可回收再利用。

　　Usually, kraft paper has two basic colors, brown and white. White paper is bleached by chemical technology and is usually used for printing, while brown kraft paper is used for more packaging. White kraft paper packaging has many advantages such as health, safety, environmental protection, and high cost-effectiveness. It is entirely produced using wood pulp and comes from artificial forest farms rather than natural forests. The white kraft paper can be recycled and reused.

　　牛皮纸印刷工艺

　　Kraft paper printing process

　　一个颜色中如果同时有大面积的实地和网点(或很细的线条)，那就最好把实地和网点(或很细的线条)分成两个版来印。要不然的话，实地部分印实了，网点(或线条)就容易印糊，网点或线条印清楚了实地部分又容易漏白，如果对印刷效果要求严格的话，两者就很难兼顾，所以需要分成两块印版来做。

　　If there are large areas of solid and dotted lines (or very thin lines) in a color, it is best to divide the solid and dotted lines (or very thin lines) into two versions for printing. Otherwise, if the solid part is printed, the dots (or lines) are easily blurred, and if the dots or lines are printed clearly, the solid part is prone to white leakage. If the printing effect is strictly required, it is difficult to balance the two, so it is necessary to divide them into two printing plates for production.

　　牛皮纸因其特殊的纹理和质感，成为了设计师非常喜欢使用的材料之一。在印刷牛皮纸时，需要注意以下几个方面:1、印刷设备的选择:牛皮纸的表面比较粗糙，需要选择适合的印刷设备，一般推荐使用凸版印刷机或柔性版印刷机。印刷过程中，需要控制好协调轮和压力轮的压力，以确保印刷效果清晰。2、印刷色彩和图案设计的技巧:牛皮纸表面的皱纹和纹理会对印刷效果产生影响。在设计时，需要根据牛皮纸的表面特点进行设计，避免过于复杂的图案或细节。

　　Kraft paper has become one of the materials that designers love to use due to its unique texture and texture. When printing kraft paper, attention should be paid to the following aspects: 1. Selection of printing equipment: The surface of kraft paper is relatively rough, and suitable printing equipment should be selected. Generally, it is recommended to use a relief printing machine or a flexographic printing machine. During the printing process, it is necessary to control the pressure of the coordinating wheel and pressure wheel to ensure clear printing results. 2. Techniques for printing color and pattern design: Wrinkles and textures on the surface of kraft paper can affect the printing effect. When designing, it is necessary to design according to the surface characteristics of kraft paper, avoiding overly complex patterns or details.

　　3、常见的牛皮纸印刷效果:常见的牛皮纸印刷效果有烫金、烫银、压纹、鼓凸等。这些效果的出现需要在印刷时控制好温度和压力，以及合适的印刷油墨。

　　3. Common kraft paper printing effects: Common kraft paper printing effects include hot stamping, silver stamping, embossing, bulging, etc. The emergence of these effects requires controlling the temperature and pressure during printing, as well as appropriate printing ink.

　　牛皮纸的种类   牛皮纸通常保持其黄褐色之本色，适合作袋子和包装纸等。依性质与用途的不同，牛皮纸又有各种不同的用途。牛皮纸系一种纸的统称，并没有一定的规范，一般根据其性质和用途的不同加以分类。按照颜色的不同可以分为:原色牛皮纸、赤牛皮纸、白牛皮纸、平光牛皮纸、单光牛皮纸、双色牛皮纸等。按照用途的不同可以分为:包装牛皮纸、防水牛皮纸、防潮牛皮纸、防锈牛皮纸、打版牛皮纸、制程牛皮纸、绝缘牛皮纸板、牛皮贴纸等。按照材质的不同可分为:再生牛皮纸、牛皮芯纸、牛皮原纸、粗面牛皮纸、牛皮纸、木浆牛皮纸、复合牛皮纸等。牛皮纸原材料来源不同，生产批次不同，生产季节不同，生产机器机台不同，等等很多原因都会影响到牛皮纸卷筒原纸的颜色不一样，这种颜色的不一样很难避免的，而且无法控制，一般同一批次牛皮纸可以保证98%颜色一致。

　　What are the types of kraft paper    Kraft paper usually maintains its natural yellow brown color and is suitable for use as bags and packaging paper. According to their properties and uses, kraft paper has various purposes. Kraft paper is a general term for a type of paper that does not have a certain standard and is generally classified based on its properties and uses. According to different colors, it can be divided into: primary kraft paper, red kraft paper, white kraft paper, flat kraft paper, single gloss kraft paper, two-color kraft paper, etc. According to different purposes, it can be divided into packaging kraft paper, waterproof kraft paper, moisture-proof kraft paper, rust proof kraft paper, printing kraft paper, process kraft paper, insulated kraft paper, kraft stickers, etc. According to the different materials, it can be divided into recycled kraft paper, kraft core paper, kraft base paper, rough kraft paper, kraft paper, wood pulp kraft paper, composite kraft paper, etc. The different sources of raw materials, production batches, production seasons, production machines, and many other reasons can affect the color of kraft paper rolls. This color difference is difficult to avoid and cannot be controlled. Generally, the same batch of kraft paper can ensure 98% color consistency.

　　牛皮纸与漂白纸的区别

　　The difference between kraft paper and bleached paper

　　与漂白纸相比，牛皮纸有许多独特的优点。对于居家食品的包装，如烧烤食品或家常食物，牛皮纸自然的褐色使包装看起来温馨、怀旧。木质装潢为主体、带乡村气息的牛排餐厅，外卖食品包装用牛皮纸，即使不在餐厅用餐也能感受到餐厅的风格。单是牛皮纸独特的外观，也比整体是白色的包装 更显突出。

　　What    Compared to bleached paper, kraft paper has many unique advantages. For home food packaging, such as barbecue or home cooked food, the natural brown color of kraft paper makes the packaging look warm and nostalgic. A steak restaurant with wooden decoration as the main body and a rural atmosphere. The delivery food packaging is made of kraft paper, and even if you don't dine in the restaurant, you can feel the style of the restaurant. The unique appearance of kraft paper alone is more prominent than the overall white packaging.

　　牛皮纸与纸袋纸的区别

　　What is the difference between kraft paper and paper bag paper

　　纸袋纸类似于牛皮纸，大多以针叶木硫酸盐浆来生产，国内也有掺用部分竹浆、棉杆浆、破布浆生产的，因此纸袋纸机械强度很高，一般用来制作水泥、农药、化肥及其它工业品的包装袋。为适合灌装时的要求，纸袋纸要求有一定的透气性和较大的伸长率。

　　Paper bag paper is similar to kraft paper and is mostly produced from coniferous wood sulfate pulp. In China, some bamboo pulp, cotton pulp, and rag pulp are also used for production. Therefore, paper bag paper has high mechanical strength and is generally used to make packaging bags for cement, pesticides, fertilizers, and other industrial products. To meet the requirements for filling, paper bag paper requires a certain degree of breathability and a large elongation rate.

　　牛皮纸包括箱板纸、水泥袋纸、高强度瓦楞纸、茶色纸板，牛皮纸是用针叶木硫酸盐本色浆制成的质地坚韧、强度大纸面呈黄褐色的高强度包装纸，从外观上可分成单面光、双面光、有条纹、无条纹等品种，质量要求稍有不同。牛皮纸主要用于制作小型纸袋、文件袋和工业品、纺织品、日用百货的内包装。牛皮纸分为鲍、础、叠3个等级。

　　Kraft paper includes box board paper, cement bag paper, high-strength corrugated paper, and brown cardboard. Kraft paper is a high-strength packaging paper made of needle leaf wood sulfate paste with a tough texture and high strength, with a yellow brown paper surface. It can be divided into single-sided glossy, double-sided glossy, striped, and non striped varieties in appearance, with slightly different quality requirements. Kraft paper is mainly used to make small paper bags, document bags, and inner packaging for industrial products, textiles, and daily necessities. Kraft paper is divided into grades U, A, and B3.

　　牛皮纸的优缺点优点牛皮纸包装由环保材料制成;强力的牛皮纸制成优质的牛皮纸盒;牛皮纸包装是最具成本效益的包装选择;牛皮纸包装在商业领域具有广泛的用途;牛皮纸盒具有更好的图形打印功能;牛皮纸箱易于个性化和定制。缺点主要缺点是牛皮纸不能遇水，稍加水就会软化纸张，所以必须将袋子存放在干燥的地方。如果要存放液体产物，尽量不要使用牛皮纸。或者如果想用牛皮纸，可以选择加一层防水笔贰膜。因为植物纤维素是牛皮纸的主要，加之牛皮纸工艺造就了牛皮纸另外的一个缺点:牛皮纸往往比常见的纸要粗糙，如果您需要您的包装产物光滑靓丽，那么牛皮纸是无法胜任的，牛皮纸宣扬的是环保、健康、复古、温情与质朴。

　　What are the advantages and disadvantages of kraft paper Kraft paper packaging is made of environmentally friendly materials; High quality kraft paper boxes made from strong kraft paper; Kraft paper packaging is the most cost-effective packaging choice; Kraft paper packaging has a wide range of uses in the commercial field; Cowhide cardboard boxes have better graphic printing capabilities; Cowhide cardboard boxes are easy to personalize and customize. Disadvantages The main disadvantage is that kraft paper cannot come into contact with water. Adding a little water will soften the paper, so the bag must be stored in a dry place. If storing liquid products, try not to use kraft paper. Or if you want to use kraft paper, you can choose to add a layer of waterproof PE film. Because plant cellulose is the main component of kraft paper, and the kraft paper process has created another drawback of kraft paper: kraft paper is often rougher than common paper. If you need your packaging products to be smooth and beautiful, kraft paper is not capable. Kraft paper promotes environmental protection, health, retro style, warmth, and simplicity.

　　牛皮纸对公司的影响

　　The impact of kraft paper on enterprises

　　1.由于它不会给包裹增加太多重量，因此使用牛皮纸包装可以降低运输成本。2.牛皮纸中的低木质素使纸张比其他材料更硬、更耐用。3.质地具有高延展性和强度，其柔韧性提供更多产物保护。4.可以使用设计元素，风格简约美观。天然材料给人一种简单而有吸引力的感觉和外观，5.环保，牛皮纸可回收再利用，并且在自然条件下降解快。潜在客户会欣赏您的环保意识，将其视为对您个性的肯定。随着现代对环保产物和工艺的需求比以往任何时候都高，您将为客户提供牛皮纸环保纸，客户是喜闻乐见的。

　　1. As it does not add too much weight to the package, using kraft paper packaging can reduce transportation costs. The low lignin content in kraft paper makes it harder and more durable than other materials. 3. The texture has high ductility and strength, and its flexibility provides more product protection. 4. Design elements can be used, with a simple and beautiful style. Natural materials give people a simple and attractive feeling and appearance. 5. Environmentally friendly, kraft paper can be recycled and reused, and degrades quickly under natural conditions. Potential customers will appreciate your environmental awareness and see it as a recognition of your personality. With the increasing demand for environmentally friendly products and processes in modern times, you will provide customers with eco-friendly kraft paper that they will enjoy.

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