[gift]

Hello to all,
i hope that my post don't make mess on cnprint.
To understand better why is standardisation important in graphic art industry.
ISO standard is agreement between all parties.
Paper, ink printing press, CTP and all others manufacturers, and also print buyers.

Make internal standard does not make sense (discover warm water)
For example to make new cars model and use bolts 8.1 mm or 13.5 mm.

To clarify ISO 12647/1 to 8 is only one part.
If ink manufacturer make ink according ISO 2846, you will get print according ISO 12647/2.
And if your contract proof is made according 12647/7 it will look like print (ISO 12647-2) when you watch under light according ISO 3664.

I don't like to be rude, but sentence "we have satisfied customer", means "nobody complain" is no quality at all.

How you can repeat job if you did not follow some rules? (standard).
ISO Technical committee group (TC130) do great job and supply to ISO members (customers, manufacturers, national interest group) proposal.
After consensus ISO standard is approved.

Standard did not come from "nowhere"

You have standard everywhere, for example HDMI (ANSI/CTA-861). Imagine that every TV manufacturer make different cable for their TV.

If you make internal (printing company) standard. How your customer know what he get?
With respect to small printer company, approval on printing press for every job is time consuming and with a lot of waste of time and paper.

Ugra PSO, Fogra PSO are rules - receipt what you need to do, what to check to print according ISO 12647
Certification from Ugra, Fogra, GMI is approval from third party (Ugra, Fogra, GMI) that you follow the rules.

On the end goal is to "print expected".

[gift]

Hello to all,
i like to make this topic more active and i like to clarify some stuff.
SWOP, is not standard. Acronym SWOP come from Specification for Web Offset Publications.

Also G7 is not standard, G7 describe procedure to achieve gray balance.
What they say and what i understand, because of different printing media, you need to adjust press ( and/or plate) to achieve neutral gray on this media.
Unfortunately, this is not possible, and there is no claim from G7 paper that you can do that.

My question for my colleagues from Graphic Art, is it that what we really want?

For example, customer have technical brochure and choose paper with high OBA quantity (*b < -6) . A lot of products made of Steel or Aluminium and they like that everything will be let say Cold Gray. With G7 it will be neutral gray.

On other side we have different products, Receipt Book. A loot pictures of bread, meat, fruit. White dishes. Customer choose neutral or yellowish paper ( b* > 1 )
If we correct neutral gray to achieve b = 0, why we choose different media with different paper white CIE b* value?
I am not sure that this is what customer want, and what printer want.
Please let me know your opinion.

[water706]

印刷标准化影响的因素很多，我们凹印行业就很难搞，粘度、材料、刮刀角度都会有比较大的影响