Vol.178

Introduction of 7 benefits of High Definition Ink (High Quality and High Definition Screen Printing Ink)

Introduction of 7 benefits

To the designers and technical experts who expect new possibilities of screen printing

We will introduce 7 benefits which High Quality and High Definition Screen Printing Ink provides to the customers.
Note1) Now we still deliver High Definition Ink in Japan only.
Note2) High Definition Screen Printing Ink obtained patent.

1. 7 benefits of High Quality and High Definition Screen Printing Ink

7 benefits provided by High Quality and High Definition Screen Printing Ink are as follows. All of these benefits had not been realized until now. This High Quality and High Definition Screen Printing Ink provides excellent decoration printability as described as follows.

  1. Fine printability
    Enables printing 100µm line with accuracy within 100 – 116µm. (We have actual result of printing 30µm fine line).
  2. Solid printing and fine line printing at the same time.
    Enables mixed pattern of solid, gradation, and fine line printing with 1 stencil.
  3. Measure for saw edge (concavo-convex on printed boundary surface)
    Enables printing of beautiful straight line and circle with saw edge below 10µm
  4. Continuous printability
    Enables continuous printing of 1500 sheets with no deformation in fine line and dot.
  5. High-speed printability
    Enables fine printing of 800 – 1500 sheets/hour by cylinder press.
  6. Re-printability
    Enables restarting printing even after stopping printer for 1 hour while ink is on stencil.
  7. Reduction of the number of cleaning stencil
    Enables reduction of the number of cleaning stencil from once/300 sheets to once/1500 sheets.

2. Introduction of benefits related to improvement of decoration characteristics and quality

1st benefit: Fine printability

  Conventional ink High Quality and High Definition Ink
Fine line Printing 100µm fine line makes ink sagging width at one side 20µm thicker (line width about 140µm). In printing 100µm fine line, stable printing with ink sagging width
below 8µm at one side is possible
(line width 100 – 116µm) .
Gradation Dot gain occurs. Enables stable printing.
Outline character printing Outline character printing of 100µm, character becomes thinner or blur. Enables stable outline printing of
100µm character. Enables solid printing without pinhole.

2nd benefit: Solid and fine line printing at the same time

Conventional ink Solid and fine line printing at the same time causes bleed of line, ink spatter, and blur.
High Quality and High Definition Ink Enables solid and fine line printing (fine pattern) with one stencil at the same time.

 

3rd benefit: Countermeasure for saw edge (Solution of saw edge (concavo-convex in printed boundary line)

Conventional ink Concavo-convex in line is conspicuous. Concavo-convex or distortion occurs in curved line at the time of outline printing of true circle.
High Quality and High Definition Ink Enables printing line with concavo-convex below 10µm and outline printing of circle with concavo-convex below 10µm.

– Printing White Ink on glass with semi-automatic screen printing machine. Comparing the 50th sheet printed.
Printing conditions: Polyester stencil (L420 mesh, thread diameter 27µm) Printing from top down.

Conventional ink
(GLS-HF679 WHITE)		 There is concavo-convex of 50µm level.
High Quality and High Definition Ink
(XGL-HF679 WHITE)		 Concavo-convex hardly occurs.

3.Introduction of benefits related to productivity and workability

4th benefit: Continuous printability

Conventional ink
(GLS-HF679 WHITE)		 At the time of printing 100µm line, about 20µm is thicker on one side. (line width: about 140µm) Ink spatter occurs after printing 300 sheets.
High Quality and High Definition Ink XER ink: Capable of ink sagging width below 8µm on one side even after printing 400 sheets with semi-automatic screen printing machine and 1500 sheets with automatic screen printing machine.Enables stable printing (line width 100 – 116µm).

Printing conditions:Polyester stencil (L355 mesh, thread diameter 27µm)

Conventional ink (ERX-971 BLACK)

50th sheet print
Line is thickened by ink sagging, which is barely acceptable.

100th sheet print
No good as ink spatter occurred in addition to thickened line caused by ink sagging
High Quality and High Definition Ink (XER-971 BLACK)

50th sheet print
Realizes beautiful line with no thickened line caused by ink sagging and without concavo-convex.

1500th sheet print
Realizes beautiful line & space in 1500th sheets without halt by cleaning stencil, etc.

 

5th benefit: High-speed printability

Conventional ink Unable to perform stable printing of 100µm line with automatic screen printing machine.
High Quality and High Definition Ink Enables printing of 100µm line with automatic screen printing machine at following speed.
XER：800 – 1500shot/hour
XIP-HF：800 – 1000shot/ hour
XFM：800 – 1000shot/ hour

6th benefit: Re-printability

Conventional ink Wiping off stencil is required after leaving ink on stencil 3 – 5 minutes.
High Quality and High Definition Ink Enables printing after waste printing of 5 sheets even after 1 hour of leaving ink on stencil.

 

7th benefit: Reduction of the number of cleaning stencil

Conventional ink Cleaning stencil about every 20 minutes is required depending on printing pattern.
(About once per 300 sheets)
High Quality and High Definition Ink Cleaning stencil is required only about every 90 minutes.
(About once per 1500 sheets)

4. Product information of High Quality and High Definition Ink

Ink Series XERInk series XIP-HFInk series XGL-HFInk series XFMInk series
Type 1 pack type 2 pack type 2 pack type 1 pack type
Substrate Treated PET, PC Treated PET, PC Glass PC
Application Applicable to printing name plates. Applicable to injection molding. Exclusive for printing glass Applicable to thermoforming (vacuum forming)
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