Se souvenir de moi
Votre connexion a échoué, essayez une nouvelle fois. Si vous avez oublié votre mot de passe, cliquez ici
Tip: User name is always your e-mail-address.
 
label ad 275 x 180
S'inscrire/Connexion
Si vous êtes membre de PressCity.com, veuillez vous connecter à votre compte.
Nom d'utilisateur
Mot de passe
Connexion
Mot de passe perdu?? cliquez ici
Pas encore membre?
Si vous n'êtes pas encore un membre de PressCity, vous pouvez vous inscrire gratuitement dès maintenant.
Profitez de toutes les possibilités que vous avez avec un abonnement gratuit
S'inscrire
  Start a new discussion or ask a question
 
  Category
  Dealing Machines
  Technical Questions
  About PressCity
  Miscellaneous
 
Questions
Manjunath BK Posted: 03-06-2011 14:36

Shade Variation from Gripper to Tail



Hello everyone,

Please help me with your answers for below queries.

1. Many Technicians from reputed Printing machinery manufacturers tell me that you can not avoid shade variation between Gripper to Tail of a sheet even if you set your oscillation rollers to the best.

Is this true ?


2. Is it usual to have mechanical problems if you buy a used Offset Printing machine with Perfector to print Board of higher caliper say 600 microns ?
Reply
Peter Mailand Replied: 07-06-2011 08:39
Hi Manjunath,

First of all which printing press are you printing on?
What is the state of the rollers?
Are there a difference in density from gripper edge to tail?

Facing mechanical problems when printing 0,6 mm cardboard on a perfecting press is dependent on which press you are choosing.
It would not according to my opinion be a problem if you choose f. ex. a new KBA or Heidelberg CX/CD perfecting press.

Best regards
Peter
Manjunath BK Replied: 07-06-2011 17:10
Thank you Peter for your prompt response.

1. We are using Brand New Heidelberg CD 102 5+L in which we are finding variation from Gripper to Tail. Hdg.Technicians say they can minimize the problem, but can not completely avoid it. How do you avoid this problem ?

2. We want to buy a Heidelberg or Mitsubhishi 102 size press with perfector to print 0.6mm board. What is your advise?

Thank you in advance for response.

best regards,
Manjunath
 
Peter Schwarz Replied: 28-07-2011 02:14
1. You always will have diffrences but should be not noticable for the human eye. Print a solid measure your density form front to back change your occilation timing until you got what you need.
Also adjust to the image you print maybe you can set the high oint in an area where it does not hurt.
2. The Mitsubishi can no pint 0.6mm most perfecting press going only up to 0.4mm Newer KBA and the HD CD would be a good choice.
Click To Reply

Sur PressCity.com vous pouvez aussi trouver ...

Machines Offset d'occassion
  • Heidelberg
  • KBA
  • Ryobi
  • Komori
Equipement Prépresse
  • CTP-systems
  • Plate Processors
  • Contact Frames
Equipement Postpress
  • Folding machines
  • Guillotines / cuttingline
  • Saddlestitchers
  • Perfect Binder
Carton / Emballage
  • Carton Gluers
  • Die Cutters
  • Laminating and Coating
Rotatives
  • Newspaper
  • Heatset
  • Flexo
  • Labels and Forms
A propos de PressCity
  • Introduction
  • Adresses
  • Termes et Services
Devenir membre
  • A propos de l'enregistrement
  • Types d'adhésion
  • Pour les revendeurs
Support
  • Webmaster
  • Support technique
  • Ventes
Espace Membre
Autres liens
  • Plan du site
Presscity credit cards
sur PressCity.com vous pouvez payer en ligne avec les cartes de crédit suivantes:
label ad 120 x 300
label ad 120 x 300
label ad 120 x 300