造纸涂布新技术
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Rod coater disadvantages
CD profile can be difficult CD向的横幅控制比较难
coat weight control limited & sensitive to coating vis. 涂布量控制较难，对涂料粘度比较敏感
Operational issues
requires low viscosity/solids & thus high drying load 需要较低的粘度/固含量，因为干燥的需求比较大
can have patterns 会形成花斑
entrained air and porous coatings 空气会进入涂层形成中空的涂层
Operational issues操作方面
rod life is long compared to blade 棒刀的寿命高于刮刀
coat weight control is difficult.. especially at high speed 涂布量的控制比较难-尤其在高速纸机上
Elements of Rod Coater – Jagenberg type 棒刀涂布机的组成 - Jagenberg
Factors Affecting Coater Runnability 影响涂布机运转的因素
Application and Metering – Two Normal Steps 上料和计量 – 两个基本的步骤
Blade Coaters 刮刀式涂布
Blade coaters are the most commonly used metering device in the paper & board industry 在造纸工业的涂布应用中刮刀式涂布是最常见的方式 ridged blade硬刮刀 bent blade软刮刀
rugged/excellent for base coats 适合于底涂
Rod coater disadvantages棒刀式涂布机的缺点
coatings can have patterns 涂层易形成花斑
solids or viscosity change coat weight 固含量或粘度直接影响涂布量
Blade streaks 刮刀条纹
Board and high coat weights
Blade streaks 刮刀条纹
Blade Coaters-Ridged 刮刀涂布机 – 硬刮刀
Ridged blade coater advantages硬刮刀涂布的优点
smooth level surface .. Excellent roto & offset print 平整的纸面- 优异的凹版和胶版印刷性能
applicator roll condition critical to good surface quality 上料辊的工作状况对纸张表面质量有很大影响
Metering Size Press Coater 计量式施胶涂布
Used with various application devices including: 使用不同的上料装置，包括：
roll applicator上料辊 short dwell短流着 jet applicator喷射型
Stiff Blade – Bent Blade at Tip 硬刮刀 – 软刮刀刀尖工作情况
Paper Coating Techniques 造纸涂布新技术
Presented for Daewo
John Moore – Chemco International John Moore – 化联精聚化学
Introduction前言
We will review paper coating equipment, the basic concepts will be discussed along with:
Rod Affect on Coating Smoothness 棒刀对涂层平滑度的影响
Metering Size Press Coaters 计量式施胶涂布
MSP coater advantages计量式施胶涂布
free of blade lines没有刮刀条痕 rugged/excellent for base coats or LWC适合于底涂 can run at speeds over 2000 m/min运转车速可以超过2000m/min can coat two sides simultaneously同时两面涂布 low capital cost成本低
Coating/Application, Dwell, Metering
涂布/上料，留着，计量
Blade Coater w/Short Dwell Applicator 刮刀涂布机/短留着上料装置
Blade Load for Short Dwell vs Roll Applicator 短留着和喷射式涂布头的刮刀加压
versatile in coat weight and the uniform thickness is important for many functional coatings 涂布量的灵活性和均一的涂层厚度可以适应多种涂布的需求
AK coater disadvantages气刀式涂布机的缺点
Application consists of applying more material than is
needed in the final product 上料是指将过量的涂料涂到纸张表面
Metering methods remove the excess in a way which leaves
我们将回顾一下涂布的设备，并依次讨论一下其基本概念 - advantages in paper quality对纸张的优点 - disadvantages对纸张的缺点 - operational issues纸机操作的影响
These things are important to your ability to problem solve and provide detailed feed back to principle and internal customers like TMC.
这些方面对于提高解决问题的能力，并提高反馈问题的能力都是很 有帮助的。
Fundamentals page 1 基本原理 第一页
Almost all coaters consist of two functions:所有的涂布机都具 有两种功能： Application上料装置 metering 计量装置
Operational issues操作方面
lips become plugged … especially at higher speed 喷嘴会堵赛，尤其是在高速时
can only be used on low speed & coaters under 500 m/min 只能应用于低于500m/min的涂布机
Airknife Coater 气刀式涂布机
Airknife Coater – double knife w/blowoff pan 气刀式涂布机- 带吹气面板的双刀型
Rod Coaters 棒刀式涂布机
Rod coater advantages 棒刀式涂布机的优点
free of blade lines 没有刮刀条痕
Typical Operational Conditions for Blade Coaters刮刀涂布的典型工作条件
Head angle 0 刮刀角
Coating solids 涂料固含量
Coater Speed 涂布车速
Coating Visc. 涂料粘度
Best suited for 最适合于
Coating/Application, Dwell, Metering
涂布/上料，留着，计量
Air Knife Coaters 气刀式涂布机
AK coater advantages 气刀式涂布机的优点
uniform thickness coat important for optical uniformity 均一的涂层厚度，对保持均一的光学性能非常重要
less problems with streaks than stiff blade 刮刀条痕较硬刮刀少
Bent blade disadvantages软刮刀涂布的缺点
poor ability to achieve low coat weight at high speeds 在高速下较难达到高的涂布量
the desired coating quality at the desired production rate 计量是指将过量的涂料从纸层移除，达到需要的涂布量
Fundamentals page 2 基本原理 第二页
We will consider the four most popular coating methods: 我们将讨论四种比较常见的涂布方式：
Biggest concern 最关系到
Stiff Blade硬刮刀 Bent Blade软刮刀
35 to 50
15 to 25
45 to 70
45 to 70
To 2000 m/min
200 to 1200 m/min
800-3000
800-1500
LWC ,pre-coats and low coat weight
high coating dewatering at high blade angle/ pressure 在大的刮刀角度或加压时保水性能差
Operational issues
blade lines/streaks
刮刀条痕
blade wear can be high
刮刀磨损严重
Roll Applicator – Trailing Blade Coater 辊式涂布- 整饰刮刀涂布机
good coat weight control at high speed or solids 高速或高固含量下的良好的涂布量控制
best LWC when used with short dwell applicator 当用短留着型涂布设备时，非常适合轻涂纸LWC
Ridged blade disadvantages硬刮刀涂布的缺点
poor ability to achieve high coat weight at low speeds 在低速时很难达到高的涂布量
high coating de-watering at high blade pressure 刮刀压力越大，保水性越差
Operational issues操作方面
ability to obtain high coat weight at low speed or solids 在较低的车速或固含量下，得到较高的涂布量
can apply high coat weight on smooth substrates with few blade lines 在光滑的底面上得到高的涂布量，刮刀条痕较少
blade lines/streaks 刮刀条痕
blade wear can be high 刮刀磨损严重
Blade Coaters-Bent 刮刀涂布机 – 软刮刀
Bent blade coater advantages 软刮刀涂布的优点
same smooth coating as stiff blade 像硬刮刀一样的平整纸面
Blade coating both bent and stiff 刮刀涂布，硬刮刀和软刮刀
Air Knife Coating 气刀式涂布
Rod Coating 棒刀式涂布
Metering Size Press/Roll 计量式施胶涂布/辊式
Blade vs Airknife vs Rod/Metering Size Press 刮刀式涂布和棒刀/计量式施胶涂布的比较
CD profile can be difficult CD向的横幅控制比较难
coat weight control limited & sensitive to coating vis. 涂布量控制较难，对涂料粘度比较敏感
Operational issues
requires low viscosity/solids & thus high drying load 需要较低的粘度/固含量，因为干燥的需求比较大
can have patterns 会形成花斑
entrained air and porous coatings 空气会进入涂层形成中空的涂层
Operational issues操作方面
rod life is long compared to blade 棒刀的寿命高于刮刀
coat weight control is difficult.. especially at high speed 涂布量的控制比较难-尤其在高速纸机上
Elements of Rod Coater – Jagenberg type 棒刀涂布机的组成 - Jagenberg
Factors Affecting Coater Runnability 影响涂布机运转的因素
Application and Metering – Two Normal Steps 上料和计量 – 两个基本的步骤
Blade Coaters 刮刀式涂布
Blade coaters are the most commonly used metering device in the paper & board industry 在造纸工业的涂布应用中刮刀式涂布是最常见的方式 ridged blade硬刮刀 bent blade软刮刀
rugged/excellent for base coats 适合于底涂
Rod coater disadvantages棒刀式涂布机的缺点
coatings can have patterns 涂层易形成花斑
solids or viscosity change coat weight 固含量或粘度直接影响涂布量
Blade streaks 刮刀条纹
Board and high coat weights
Blade streaks 刮刀条纹
Blade Coaters-Ridged 刮刀涂布机 – 硬刮刀
Ridged blade coater advantages硬刮刀涂布的优点
smooth level surface .. Excellent roto & offset print 平整的纸面- 优异的凹版和胶版印刷性能
applicator roll condition critical to good surface quality 上料辊的工作状况对纸张表面质量有很大影响
Metering Size Press Coater 计量式施胶涂布
Used with various application devices including: 使用不同的上料装置，包括：
roll applicator上料辊 short dwell短流着 jet applicator喷射型
Stiff Blade – Bent Blade at Tip 硬刮刀 – 软刮刀刀尖工作情况
Paper Coating Techniques 造纸涂布新技术
Presented for Daewo
John Moore – Chemco International John Moore – 化联精聚化学
Introduction前言
We will review paper coating equipment, the basic concepts will be discussed along with:
Rod Affect on Coating Smoothness 棒刀对涂层平滑度的影响
Metering Size Press Coaters 计量式施胶涂布
MSP coater advantages计量式施胶涂布
free of blade lines没有刮刀条痕 rugged/excellent for base coats or LWC适合于底涂 can run at speeds over 2000 m/min运转车速可以超过2000m/min can coat two sides simultaneously同时两面涂布 low capital cost成本低
Coating/Application, Dwell, Metering
涂布/上料，留着，计量
Blade Coater w/Short Dwell Applicator 刮刀涂布机/短留着上料装置
Blade Load for Short Dwell vs Roll Applicator 短留着和喷射式涂布头的刮刀加压
versatile in coat weight and the uniform thickness is important for many functional coatings 涂布量的灵活性和均一的涂层厚度可以适应多种涂布的需求
AK coater disadvantages气刀式涂布机的缺点
Application consists of applying more material than is
needed in the final product 上料是指将过量的涂料涂到纸张表面
Metering methods remove the excess in a way which leaves
我们将回顾一下涂布的设备，并依次讨论一下其基本概念 - advantages in paper quality对纸张的优点 - disadvantages对纸张的缺点 - operational issues纸机操作的影响
These things are important to your ability to problem solve and provide detailed feed back to principle and internal customers like TMC.
这些方面对于提高解决问题的能力，并提高反馈问题的能力都是很 有帮助的。
Fundamentals page 1 基本原理 第一页
Almost all coaters consist of two functions:所有的涂布机都具 有两种功能： Application上料装置 metering 计量装置
Operational issues操作方面
lips become plugged … especially at higher speed 喷嘴会堵赛，尤其是在高速时
can only be used on low speed & coaters under 500 m/min 只能应用于低于500m/min的涂布机
Airknife Coater 气刀式涂布机
Airknife Coater – double knife w/blowoff pan 气刀式涂布机- 带吹气面板的双刀型
Rod Coaters 棒刀式涂布机
Rod coater advantages 棒刀式涂布机的优点
free of blade lines 没有刮刀条痕
Typical Operational Conditions for Blade Coaters刮刀涂布的典型工作条件
Head angle 0 刮刀角
Coating solids 涂料固含量
Coater Speed 涂布车速
Coating Visc. 涂料粘度
Best suited for 最适合于
Coating/Application, Dwell, Metering
涂布/上料，留着，计量
Air Knife Coaters 气刀式涂布机
AK coater advantages 气刀式涂布机的优点
uniform thickness coat important for optical uniformity 均一的涂层厚度，对保持均一的光学性能非常重要
less problems with streaks than stiff blade 刮刀条痕较硬刮刀少
Bent blade disadvantages软刮刀涂布的缺点
poor ability to achieve low coat weight at high speeds 在高速下较难达到高的涂布量
the desired coating quality at the desired production rate 计量是指将过量的涂料从纸层移除，达到需要的涂布量
Fundamentals page 2 基本原理 第二页
We will consider the four most popular coating methods: 我们将讨论四种比较常见的涂布方式：
Biggest concern 最关系到
Stiff Blade硬刮刀 Bent Blade软刮刀
35 to 50
15 to 25
45 to 70
45 to 70
To 2000 m/min
200 to 1200 m/min
800-3000
800-1500
LWC ,pre-coats and low coat weight
high coating dewatering at high blade angle/ pressure 在大的刮刀角度或加压时保水性能差
Operational issues
blade lines/streaks
刮刀条痕
blade wear can be high
刮刀磨损严重
Roll Applicator – Trailing Blade Coater 辊式涂布- 整饰刮刀涂布机
good coat weight control at high speed or solids 高速或高固含量下的良好的涂布量控制
best LWC when used with short dwell applicator 当用短留着型涂布设备时，非常适合轻涂纸LWC
Ridged blade disadvantages硬刮刀涂布的缺点
poor ability to achieve high coat weight at low speeds 在低速时很难达到高的涂布量
high coating de-watering at high blade pressure 刮刀压力越大，保水性越差
Operational issues操作方面
ability to obtain high coat weight at low speed or solids 在较低的车速或固含量下，得到较高的涂布量
can apply high coat weight on smooth substrates with few blade lines 在光滑的底面上得到高的涂布量，刮刀条痕较少
blade lines/streaks 刮刀条痕
blade wear can be high 刮刀磨损严重
Blade Coaters-Bent 刮刀涂布机 – 软刮刀
Bent blade coater advantages 软刮刀涂布的优点
same smooth coating as stiff blade 像硬刮刀一样的平整纸面
Blade coating both bent and stiff 刮刀涂布，硬刮刀和软刮刀
Air Knife Coating 气刀式涂布
Rod Coating 棒刀式涂布
Metering Size Press/Roll 计量式施胶涂布/辊式
Blade vs Airknife vs Rod/Metering Size Press 刮刀式涂布和棒刀/计量式施胶涂布的比较