nv publications N.V. Business Publications
43 Main Street
Avon By The Sea, NJ 07717
(732)502-0500
Fax: (732)502-9606
lprazych@nvpublications.com

N.V. Business Publications
540 W Frontage Rd. Suite 3124
Northfield, IL 60093-1230
(847)441-5645
Fax: (847)441-5652
advertising@nvpublications.com
Brunton Publications
1 Salisbury Office Park,
London Road
Salisbury, Wiltshire SP1 3HP
Tel: 011441722337038
publications@brunton.co.uk

NV PUBLICATIONS CLASSIFIEDS

Site Map

The Source 2014
Industry Calendar
(Click Below To View)

Get Adobe Flash player

INTERNET
DIRECTORIES
NV Publications BCN internet directorynv publications flexo internet directory


CLICK TO VIEW
The 2014
FMN Executive Outlook

 

EXPERT-BANNER2.jpg

 

 


wilkinson-pic.jpgWelcome to  'Ask The Expert'.  This page is moderated by industry consultant, Steve Wilkinson.  This page features the answers to your questions. Our visitors can also post comments to these questions/answers as well.  You can learn more about Steve's background and our 'Ask The Expert' page by Clicking Here.

 

If you have a new question to ask, just CLICK HERE to post your question.  Questions and comments will be reviewed by our staff and posted as quickly as possible.  All questions should be non-commercial in nature

As always, thanks for visiting www.nvpublications.com. 


ASK-THE-EXPERT


February 15, 2011
Talking with my ink supplier he mentioned that there are two types of UV inks. Can you tell me what they are and if one is better than another?

     Not that I am an ink chemist, but I believe your supplier was probably referring to free radical chemistry and cationic formulas. Free radical UV inks have acrylates and oligomers as their primary components, and are used in flexo, gravure, rotary letterpress and offset coatings. They also have a photoinitiator that will allow them to absorb UV light energy to be able to form free radicals, which in turn starts the polymerization process. They also have other additives such as silicones, waxes and other inhibitors.

     Cationic inks use very different epoxy resins and other monomers as the primary components as well as a photoinitiator. They do have similar additives as cationic inks. Cationic is the most common system used because it has more capabilities, and the raw materials are more readily available. They have better solvent, abrasion resistance and are more compatible with water-based inks. Cationic inks are claimed to have better adhesion and although longer to cure do give good barrier protection, and it is claimed the base materials are less toxic.

Add new comment

All fields are required.

*

*

*

No Comments




Archives

s

 

This Site  Created & Managed by Netincome LLC

NV PUBLICATIONS PACKAGING INDUSTRY

FLEXO MARKET NEWS  AUGUST 11TH ISSUE NOW ONLINE
CLICK TO VIEW

SPONSORED BY