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bleed

In printing, bleed is printing that goes beyond the edge of where the sheet will be trimmed. In other words, the bleed is the area to be trimmed off. The bleed is the part on the side of a document that gives the printer a small amount of space to account for natural movement of the paper during guillotining, and design inconsistencies. Artwork and background colors often extend into the bleed area. After trimming, the bleed ensures that no unprinted edges occur in the final trimmed document.It is very difficult to print exactly to the edge of a sheet of paper/card, so to achieve this, it is necessary to print a slightly larger area than is needed and then trim the paper/card down to the required finished size. Images, background images and fills which are intended to extend to the edge of the page must be extended beyond the trim line to give a bleed.
Bleeds in the US generally are 1/8 of an inch from where the cut is to be made. Bleeds in Europe generally are 2 to 5mm from where the cut is to be made. This can vary from one print company to another. Some printers ask for specific sizes; most of these companies place the specific demands on their website or offer templates that are already set to their required bleed settings.

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  1. M

    One cold radiator upstairs

    One of my upstairs radiators is cold. I've tried bleeding it, the Lockshield valve and the TRV valve are both open. The TRV valve pin is fine and pops up on its own, I've even had the radiator off and flushed out any sludge etc. but it still isn't warming up. When I try to bleed a little air...
  2. C

    duroVent automatic radiator bleed valves

    Have any of our esteemed members any practical experience of this valve ? Good or bad - all comments gratefully recieved and acknowleged :hurray: Centralheatking
  3. T

    Bleeding system, 2 rads not bleeding

    Im just a DIY'er but i wanted to remove my radiators on my new house tonight to strip the paper from behind them. The system is all combi-boiler heated with no tanks left in the house. I noticed there were 2 system bleed points when i started. I put a hose to the first in the dining room and...
  4. P

    Gravity Fed Air In System

    Hi All, I've just added four new radiators to a property. System: conventional heating system Conventional Potterton Suprima boiler I've bleed the air from the radiators correctly, starting at the bottom then upstairs. All the radiators seem to be getting hot, but the boiler seems switch on...
  5. A

    How to bleed water from pipes to prevent freezing and bursting in winter?

    I am trying to bleed the taps so I turned off the cold water mains tap but there is still a considerable flow of water from the tap. It's been running for over 20 minutes with no sign of decreasing. I don't know why the mains tap isn't shutting down the water supply completely. I have a...
  6. M

    Always getting air lock when refilling system

    I have drained and refilled my system a few times (with some cracking advice off here) and each time I still end with an air lock. After draining down I re-open the valve in the f&e tank in the loft, let it fill and then start bleeding downstairs rads first to encourage filling. Once all the...
  7. J

    Whats the name of this central heating bleed valve 'thing'?

    Hi all, I have a radiator by my front door which has a leak (now isolated to stop the leak) from a cental heating bleed valve - I suspect the cleaner hit it with a hoover and damaged it - but in order to replace it, I need to know what it is called so I can order the right part. I am not...
  8. T

    Quick one - is this another bleed point?

    Hello guys, just nosing around the airing cupboard after a heating drain and refill and thought I'd got everything but then noticed this on the hot water section after the 3 way valve. is this a manual bleed point? It looks like a screwdriver top to it but I'm unsure if I should touch it? many...
  9. S

    Self bleed valves

    Hi all fitted some of these on a job & customer says rads are now hotter than before. Has anybody used them & are they any good. The blurb from the company states higher efficiency lower bills etc
  10. R

    No air from bleed valves

    Changed a radiator today. The heating is a system boiler, I shut the supply to the f&e tank and drained the rads. When I had fitted the rad and started to fill the system there was a small amount of air from each rad and then it stopped. The f&e tank is still full and the rads arent filling...
  11. B

    Wallstar 12/15 bleed point

  12. M

    Reinstalling radiator with no bleed valve

    Hi. I have a bathroom radiator which I need to remove so that I can re-tile behind it. The radiator in a 1970's cast iron type and the bleed valve has been removed and the hole welded up at some time in the past. It's part of a shared system between 2 apartments and I don't have access to the...
  13. W

    Old Radiator Bleed Valve Replacement

    Hi All, Thanks in advance for any advice. My wife and I are DIYing our sitting room (repaint etc etc). I took the old rads off the wall to have them sand blasted and powder coated, thinking it would be much nicer to have the old ones used than spend money on new. While they were away the inner...
  14. M

    worcester 15/19

    Hello, I have a problem with my boiler. I ran out of oil and have now replenished it but it won't come out of lock out mode. Every time I try to reset it, it fires up for a couple of seconds then goes to lock out. I understand that I need to bleed/prime the oil pump and I have tried to undo...
  15. M

    How to bleed worcester heatslave 15/19

    Hi guys, Can anyone help! Ran out of oil. Does anyone know how to bleed the Worcester Heatslave 15/19 oil boiler? The lockout light is also on. thanks, mems.
  16. N

    Can I install a bleed valve in my heated towel rail?

    My bathroom has been refitted with a brand new designer type towel rail. This is the highest radiator on my circuit and is slowly collecting some air. My old bathroom rad had a standard bleed valve which was easy to use. This towel rail has no valve, just a "bolt" and fibre washer. To release...
  17. L

    open vented system woe

    Hi guys, i am not too clued up on open vented system layouts and fault findings so any help will be much appreciated. a friend contacted me to say some of there rads where not heating and they regularly had to bleed the rads on the top floor (3 floor house) i was rushing to another job but...
  18. L

    Radiator TRVs and Bleed Valves

    Hello all, Firstly let me apologise, I'm sure my questions below have been asked time and time again. * I understand the old type TRVs (uni-directional) had to be installed on the flow side of the radiator only, however the newer TRVs (bi-directional) can be installed on either the flow or...
  19. A

    Abv's in central heating.

    I have a bog standard vented, fully pumped c/h system. Recently had to drain down, refill and bleed system. After a fair bit of grief with air, have managed to restore system to fully working. As part of the saga, I traced all elements/pipes of system and found that both of the system ABV's have...
  20. L

    Bleed oil burner not working

    Hi, I live in student accommodation where we never really pay much attention to anything, but anyway this is the second time our oil has ran out but we are having difficulties bleeding it this time. Last time I ha no problem I just used a spanner to loosen the nut and waited for the oil to drip...
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