PNG transparency for a t-shirt

A
Posted By
amylynpace
Aug 18, 2006
Views
675
Replies
8
Status
Closed
Howdy.

I’m setting up a file to be direct-printed to a green t-shirt on a website called zazzle.com

It’s currently a PSD with layers and transparency. Black text and a logo on a transparent background.

Their help files say to save it as a 32 bit PNG with alpha transparency and that transparency will be retained. I’m sure the 100% transparent areas will be transparent but what happens to the edge pixels that aren’t 100% transparent? They’ll no doubt be printed as an opaque color, giving me a halo. I can deal with that by mimicking the t-shirt’s color in a bottom layer, I suppose. The shirt will be a lighter color, so it might not matter much.

My questions are:
Which Save for Web should I use? PNG-8 or PNG-24? or can I save as a 32 bit PNG from PS7?
Should I really create an alpha channel transparency? Is it somehow better?
And finally, has anyone had an experience designing a shirt at zazzle or similar.

Thanks
Amy
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png shirt transparency

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MH
Mike Hyndman
Aug 19, 2006
wrote in message
Howdy.

I’m setting up a file to be direct-printed to a green t-shirt on a website called zazzle.com

It’s currently a PSD with layers and transparency. Black text and a logo on a transparent background.

Their help files say to save it as a 32 bit PNG with alpha transparency and that transparency will be retained. I’m sure the 100% transparent areas will be transparent but what happens to the edge pixels that aren’t 100% transparent? They’ll no doubt be printed as an opaque color, giving me a halo. I can deal with that by mimicking the t-shirt’s color in a bottom layer, I suppose. The shirt will be a lighter color, so it might not matter much.

My questions are:
Which Save for Web should I use? PNG-8 or PNG-24? or can I save as a 32 bit PNG from PS7?
Should I really create an alpha channel transparency? Is it somehow better?
And finally, has anyone had an experience designing a shirt at zazzle or similar.

Thanks
32 bit png? 24 then 48 seems to be the progression, see http://www.mezzoblue.com/archives/2003/06/09/a_png_review/

MH
A
amylynpace
Aug 20, 2006
You can imagine my confusion.
Maybe 32=24 in zazzlespeak. I’m using a 24 bt image. Still worried about the edges but I guess I’ll give it a go.
MH
Mike Hyndman
Aug 20, 2006
wrote in message
You can imagine my confusion.
Maybe 32=24 in zazzlespeak. I’m using a 24 bt image. Still worried about the edges but I guess I’ll give it a go.

😉

MH
S
sfb
Aug 20, 2006
It is a tee shirt. They’ll be looking at your tits not the edges of the design.

wrote in message
You can imagine my confusion.
Maybe 32=24 in zazzlespeak. I’m using a 24 bt image. Still worried about the edges but I guess I’ll give it a go.
OR
Owen Ransen
Aug 22, 2006
On 18 Aug 2006 13:41:26 -0700, wrote:

My questions are:
Which Save for Web should I use? PNG-8 or PNG-24? or can I save as a 32 bit PNG from PS7?
Should I really create an alpha channel transparency? Is it somehow better?
And finally, has anyone had an experience designing a shirt at zazzle or similar.

Nobody seems to have answered your question.

PNG has variable transparency, unlike GIF which only has 0% or 100%, so you should be OK.

Easy to use graphics effects:
http://www.ransen.com/
MH
Mike Hyndman
Aug 22, 2006
"Owen Ransen" wrote in message
On 18 Aug 2006 13:41:26 -0700, wrote:

My questions are:
Which Save for Web should I use? PNG-8 or PNG-24? or can I save as a 32 bit PNG from PS7?
Should I really create an alpha channel transparency? Is it somehow better?
And finally, has anyone had an experience designing a shirt at zazzle or similar.

Nobody seems to have answered your question.

PNG has variable transparency, unlike GIF which only has 0% or 100%, so you should be OK.

Easy to use graphics effects:
http://www.ransen.com/

Did you read the link?

"PNG, pronounced ‘ping’, is available in 3 flavours: true colour, grayscale, and palette-based. The former is better known as PNG-24, the latter as PNG-8 (24 and 8 bits per pixel, respectively) and these are the two that will concern us for now. 1-bit transparency means every pixel is either completely transparent, or completely opaque. 8-bit transparency means every pixel has an opacity value from 0 to 255, where 0 is completely transparent and 255 is completely opaque".

MH
OR
Owen Ransen
Aug 22, 2006
On Tue, 22 Aug 2006 12:07:03 +0100, "Mike Hyndman" wrote:

The former is better known as PNG-24, the latter as PNG-8

Ha! I did not even know that PNG-8 existed!

Oh well, you learn something every day…

Easy to use graphics effects:
http://www.ransen.com/
MH
Mike Hyndman
Aug 22, 2006
"Owen Ransen" wrote in message
On Tue, 22 Aug 2006 12:07:03 +0100, "Mike Hyndman" wrote:

The former is better known as PNG-24, the latter as PNG-8

Ha! I did not even know that PNG-8 existed!

Oh well, you learn something every day…

Owen,

"Share what you know, learn what you don’t." 😉

Regards

Mike H

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