1. Brush type

刷式涂布机是比较古老的涂布设备，在19世纪50年代用于使用瓷土涂料生产涂布墙壁纸。刷式涂布头有三种不同的类型：圆刷涂布头、毯辊涂布头和毯套涂布头。

The brush coating machine is a relatively ancient coating equipment used in the 1850s to produce coated wall papers using porcelain clay coatings. There are three different types of brush type coating heads: circular brush coating heads, blanket roller coating heads, and blanket sleeve coating heads.

2、气刀

2. Air knife

20世纪30年代气刀涂布机的出现标志现代纸张涂布工业的诞生。气刀涂布机克服了刷式涂布机的缺点，迅速被推广，涂布纸产量急剧增加。

The emergence of air knife coating machines in the 1930s marked the birth of modern paper coating industry. The air knife coating machine overcomes the shortcomings of the brush coating machine and is quickly promoted, resulting in a sharp increase in the production of coated paper.

3、刮刀式

3. Scraper type

20世纪50年代出现了刮刀式涂布机。此后刮刀涂布机技术得到了快速的发展。根据上料设备、刮刀类型和刮刀安装位置的不同，刮刀涂布头也分为许多种，如硬刃刮刀涂布机、拖刀式刮刀涂布机、软刃刮刀涂布机、喷泉式上料刮刀涂布机、短驻留刮刀涂布机、比尔刮刀涂布机、刮辊式涂布机等。

In the 1950s, a scraper type coating machine emerged. Since then, the technology of scraper coating machines has developed rapidly. According to the different feeding equipment, scraper types, and scraper installation positions, scraper coating heads are also divided into many types, such as hard blade scraper coating machines, drag blade scraper coating machines, soft blade scraper coating machines, fountain type feeding scraper coating machines, short dwell scraper coating machines, Bill scraper coating machines, scraper roller coating machines, etc.

4、辊式

4. Roller type

辊式涂布是用涂布辊向涂布面施以涂料，机内涂布以这种涂层机为主。涂布量可通过计量辊间压力进行调节，压力增强，涂布量减少。

Roller coating is the process of applying paint to the coating surface using a coating roller, and this type of coating machine is mainly used for internal coating. The coating amount can be adjusted by measuring the pressure between the rollers, increasing the pressure and reducing the coating amount.

5、喷雾涂布

5. Spray coating

喷雾涂布技术是一种非接触涂布方式，采用可控高压喷雾技术，对纸或纸板进行单面或双面涂布。

Spray coating technology is a non-contact coating method. Controlled high-pressure spray technology is used to coat paper or paperboard on one or both sides.

6、帘式涂布

6. Curtain coating

多层帘式涂布机只需经过一次涂布操作，就能够赋予喷墨打印纸表面三层结构，并能够在不均匀的纸张表面上获得均匀的涂层。

The multi-layer curtain coating machine can endow the surface of inkjet printing paper with a three-layer structure and obtain a uniform coating on uneven paper surfaces with just one coating operation.

7、狭缝式涂布

7. Slit coating

狭缝涂布头包括，涂布液储存罐；泵，用于将涂布液储存罐里的涂布液通过供给管路压送到喷嘴处；控制部，用于控制泵及喷嘴的的工作，压力检测部，用于检测管路压力，当压力达到预定压力条件时喷嘴排除涂布液。

The narrow seam coating head includes a coating liquid storage tank; Pump, used to press the coating liquid in the coating liquid storage tank to the nozzle through the supply pipeline; The control section is used to control the operation of the pump and nozzle, and the pressure detection section is used to detect pipeline pressure. When the pressure reaches the predetermined pressure condition, the nozzle discharges the coating liquid.

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