Author Topic: Screens Ripping  (Read 7440 times)

Offline Maxie

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Screens Ripping
« on: November 22, 2023, 03:17:00 AM »
What could be causing screens to rip in the middle?
Printing on MHM S  Type
Maxie Garb.
T Max Designs.
Silk Screen Printers
www.tmax.co.il


Offline tonypep

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Re: Screens Ripping
« Reply #1 on: November 22, 2023, 05:33:47 AM »
Check the ink for any screws, machine parts that may have come loose and fell in. Also check the print head for missing screws etc.
Or it could be the gremlins!

Offline Sbrem

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Re: Screens Ripping
« Reply #2 on: November 22, 2023, 10:04:27 AM »
Sometimes there could be a small nick in the mesh, just waiting to pop...

Steve
I made a mistake once; I thought I was wrong about something; I wasn't

Offline Doug S

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Re: Screens Ripping
« Reply #3 on: November 22, 2023, 10:08:22 AM »
I don't know if your machine has the same floodbars but check them for nicks if so.  It doesn't take much of one to rip the screen.  Use some emery cloth to smooth them out.
It's not a job if you love doing it.

Offline Atownsend

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Re: Screens Ripping
« Reply #4 on: November 22, 2023, 03:38:58 PM »
For us a rip in the middle usually means tension is too high. But we’re using newmans. Are these screens new?

Offline Evo

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Re: Screens Ripping
« Reply #5 on: November 22, 2023, 07:38:19 PM »
Need more info.

*Where* did the rip occur? On press? During cleanup?


Possible culprits (not a complete list):

Too high tension
Burr on an ink knife
Burr on a flood bar
Careless teenager in the screen room
Debris in the ink
Debris on a pallet
Debris in a shop rag
You looked at the screen wrong and hurt it's feelings
There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply. The person who buys on price alone is this man's lawful prey.
John Ruskin (1819 - 1900)

Offline Admiral

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Re: Screens Ripping
« Reply #6 on: November 27, 2023, 12:47:28 PM »
Need more info.

*Where* did the rip occur? On press? During cleanup?


Possible culprits (not a complete list):

Too high tension
Burr on an ink knife
Burr on a flood bar
Careless teenager in the screen room
Debris in the ink
Debris on a pallet
Debris in a shop rag
You looked at the screen wrong and hurt it's feelings

"Debris in the ink"

One time we noticed metal shavings in the white ink bucket.  Electricians....

Offline Maxie

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Re: Screens Ripping
« Reply #7 on: January 31, 2024, 03:14:00 PM »
Thanks for the comments, I was over streching.
My Newton meter was one by 4 newtons, I'm using thin mesh so overstretching by 4 Newtons is quite a lot.
I've had my meter for 30 years, cost $100 to have it recalibrated by Newman, not bad.
Maxie Garb.
T Max Designs.
Silk Screen Printers
www.tmax.co.il