5. Harper Anilox Roll

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

COVER SLIDE

Harper is the only anilox manufacturer in the world with an ISO 9001 registered quality system.

Both Charlotte, NC and Green Bay, WI are ISO certified.San Jose will be certified soon

Harper is known internationally for “World Class Quality” anilox rolls and service

Harper Corporation of America

Harper’s Technical Services

Roll Audits Print Sample EvaluationsBanded Roll Design And TestingDr. Blade EvaluationsConsultingIn Plant TrainingProcess And Quality Improvement

Charlotte, NCLeading manufacturer of quality anilox rolls.Started by Ron & Katherine Harper in 1971.Manufacturing Facility: 4,500 square metersHouses 11 EchocelTM Laser Engraving Units.

Harper Corporation of America

Green Bay Satellite plant opened in June, 1997.Manufacturing Facility : 2,800square metersHouses 2 EchocelTM Laser Engraving Units.

Green Bay, WI

Harper Corporation of America

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

Plate mouting roll

Impression roll

Anilox roll

Chamber doctor blade system

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

Mechanically Engraved Chrome

Original Anilox TechnologyFrequently Electro-plated with copperEngraving tool forced into copper or steelChrome plating 0.013-0.025 mm thickPyramid or quadrangular shaped cells

Mechanical Engraving

Mechanical Chrome

OpeningOpeningWall or Wall or LandLand

Depth

Depth

New Chrome Anilox Roll

Wide Lands Wide Lands & Post Areas& Post Areas

Worn Anilox Roll

Loss Of DepthLoss Of DepthLoss Of VolumeLoss Of Volume

Laser Engraved Ceramic

Introduced in the 1980’sCoated with chrome oxide ceramic Ceramic coating 0.255 to 0.635 mm thickCeramic polished to mirror finish Life is determined by the care given to the roll

Harper Laser Engraved Ceramic

Harper pioneered 60° engravingsProprietary laser technology60° engravings revolutionized flexo print quality Harper developed new cell quality standards for cell shape, consistency and repeatability

Components Of A Cell

Cell Wall

Post Area

Cell Depth& Volume

CellShape

CellAngle

60º

Cell Cavity

1

2

3

4

60º

60º Hexagonal Engravings

Selecting high quality anilox roll

• Good cell geometryThin cell wallLess post areaCell cavity: parabolic shape

• Dept to Opening ratio• Smooth cell surface

Thin cell wall

1 นิ้ว มีความยาว = 25,400 ไมครอนAnilox 200 lines / inch =25,400 ไมครอน

=25,400 ไมครอน

Anilox 1Cell = 25,400/200= 127 ไมครอน

Opening Cell wall Cell width

120 ไมครอน 7 ไมครอน 127 ไมครอน

100 ไมครอน 27 ไมครอน 127 ไมครอน

90 ไมครอน 37 ไมครอน 127 ไมครอน

80 ไมครอน 47 ไมครอน 127 ไมครอน

Cell Wall

Cell Opening

Components Of A Cell

Depth of Cell

Typical Cell Profile Geometry's

Test TubeQuad

Parabolic Shape

Best Shape

Selecting high quality anilox roll

• Good cell geometryThin cell wallLess post areaCell cavity: parabolic shape

• Dept to Opening ratio• Smooth cell surface

Development Of Depth-to-Opening-Ratio

100 microns

28 microns

D/O Ratio (%) = Cell Depth (28)Cell Opening (100) X 100% = 28 %

Laser Engraved 60º

Qualitative benefit from Harper anilox roll

• C M Y printing on white background

• High light printing

Qualitative benefit from Harper anilox roll

• C M Y printing on white background

• High light printing

Selecting high quality anilox roll

• Good cell geometryThin cell wallLess post areaCell cavity: parabolic shape

• Dept to Opening ratio• Smooth cell surface

Wide Cell Walls = Poor Ink Films

Printing Plate

Resulting Poor Ink Film Transferred To Plate

Poor Ink Film Transferred To Substrate

Substrate

Anilox Cells With Wide Cell Walls

Thin Cell Walls = Flat Ink Films

Anilox Cells With Thin Cell Walls

Printing Plate

Smooth Ink Film Transferred To Plate

Smooth Ink Film Transferred To Substrate

Substrate

Qualitative benefit from Harper anilox roll

• Solid white printing• High light printing

LowCell Volume Optimum Range

Today The Optimum Depth-to-OpeningRange Is Based On Echotopography

Volume NOT DEPTH!

Current Depth-to-Opening-Ratio

HighCell Volume

Reduced Anilox VolumeHeavy Anilox Volume

Cell Volume Controls Ink Film Thickness

3/10/97 Steve Tucker 40

TIR• TIR - Total Indicator Runout, A measure of

concentricity and roundness. Measured on roll face as compared to bearing surfaces, A & B.

.1 mm A - B

A B

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

ขัด anilox เคาทําอยางนีหรอืเปลาคา พีธวัชชัยขา

• Chrome roll

• Ceramic roll

• Component of cell

• Engraving degree• Line screen

แลวเราจะไดอะไร

จาก

เลือกผนังเซลบาง ,เซลรูปชามอาง,ปาก

ชามรูปอาง, รอยตอเซลเล็ก

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

Laser Engraved 60º

Cell Wall

Cell Opening

Components Of A Cell

Depth of Cell

Element 2:Scientific Anilox Selection

Depth to Opening Ratio:Between 23% and 33%Optimum is 28%

PlateCylinder

Desired Ink

Dipping Result

AniloxCylinder

CellContainin

g Ink

Highlight Dot

Dot Dipping:Understand relationship between plate dot and anilox cell openingPrevent plate dots fromentering anilox cells

A

B

Cell Depth (B)Cell Opening (A)X 100%

Development Of Depth-to-Opening-Ratio

100 microns

28 microns

D/O Ratio (%) = Cell Depth (28)Cell Opening (100) X 100% = 28 %

LowCell Volume Optimum Range

Today The Optimum Depth-to-Opening Range Is Based On Echotopography

Volume NOT DEPTH!

Current Depth-to-Opening-Ratio

HighCell Volume

ภาพบน

ใช anilox Harper ชั้นหมึกหนา 28 ไมครอน

ภาพลาง

ใช anilox แบบ hard chrome ชั้นหมึกหนา 45 ไมครอน

Development Of Depth-to-Opening-Ratio

100 microns

28 microns

D/O Ratio (%) = Cell Depth (28)Cell Opening (100) X 100% = 28 %

OpeningOpeningWall or Wall or LandLand

Depth

Depth

New Chrome Anilox Roll

ชนิดของ anilox roll

ความลึกของ cell anilox roll ที่ 250/lpi

ลักษณะการพิมพ ความหนาของชั้น

หมึก

Harper Anilox roll

21 microns พิมพสมัผัสพอดี 21 ไมครอน

Ceramic roll อี่นๆ

30 microns แยกลูกยางออก

จากanilox ประมาณ 1 เสนผม

100 ไมครอน

Chrome Anilox roll

45 microns แยกลูกยางออก

จากanilox ประมาณ 1 เสนผม

115 ไมครอน

ถามจิ๊ง ถาติ๊นา ซือ้ Harper จะประหยัดหมีกไดเทาไหรความหนา

ของชั้นหมึก

ชนิดของ anilox roll

21 ไมครอน

100 ไมครอน

115 ไมครอน

Harper Anilox rollCeramic roll อี่นๆChrome Anilox roll

1. Harper Corporation of America

2. Harper Asia Pacific

3. Role play of anilox roll in Flexo. Press

4. Smart anilox roll

5. Take money from Harper Anilox roll

6. Maintenance of anilox roll

7. Simply ways to kill your anilox roll

Element 2:Scientific Anilox Selection

Depth to Opening Ratio:Between 23% and 33%Optimum is 28%

PlateCylinder

Desired Ink

Dipping Result

AniloxCylinder

CellContainin

g Ink

Highlight Dot

Dot Dipping:Understand relationship between plate dot and anilox cell openingPrevent plate dots fromentering anilox cells

A

B

Cell Depth (B)Cell Opening (A)X 100%