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#16
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bleached paper
On Jan 30, 3:15*pm, Martin wrote:
On Fri, 30 Jan 2009 06:28:23 -0800 (PST), moghouse wrote: On 30 Jan, 13:48, Martin wrote: It seems tea bags contain chlorine and dioxines. So, no more used tea bags on the garden ) Where has that Dutch good taste gone? They never had any. BTW I'm not Dutch. Tea bags are not fit to line your dustbin. UK supermarkets are stuffed with boxes of tea bags. The Dutch haven't had dustbins for decades. If you want a decent cup of tea buy leaf tea and mix two thirds strong tea with one third Earl Grey and you will never use a tea bag again! I rarely use tea bags, I prefer coffee. The Dutch & Germans dunk tea bags in warm water. At a job interview in NL, I was given a drink whilst I was waiting. I asked what the curious tasting luke warm liquid in a plastic cup was. The answer was "tea". -- Martin I realize you are not a native but you are surrounded by cloggies so something must rub off. I must say the only time I visited Holland I was forced to drink coffee, though I was much impressed by the ham and cheese breakfasts. The British supermarkets are stuffed with a great many foods that I would never eat! |
#17
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bleached paper
Sheila wrote: How do I know which paper is bleached/unbleached? I have been putting paper in my compost heap, but just read you shouldn't put bleached in......oh no, how do I find out! 'White' paper is either bleached or dyed. I hate to think what is in the dye! -- Pete C London UK |
#18
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bleached paper
The message
from "Pete C" contains these words: Sheila wrote: How do I know which paper is bleached/unbleached? I have been putting paper in my compost heap, but just read you shouldn't put bleached in......oh no, how do I find out! 'White' paper is either bleached or dyed. I hate to think what is in the dye! You can't dye something white. Actually, it is bleached and if glossy, white clay is added, and it is heat-treated. (Basically, ironed...) -- Rusty Direct reply to: horrid dot squeak snailything zetnet point co period uk Separator in search of a sig |
#19
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bleached paper
The message
from Martin contains these words: I rarely use tea bags, I prefer coffee. The Dutch & Germans dunk tea bags in warm water. They get that close to water? They get closer. They export Heineken & Bavaria Pils to UK. Ah. Making love in a punt... -- Rusty Direct reply to: horrid dot squeak snailything zetnet point co period uk Separator in search of a sig |
#20
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bleached paper
Thats exactly what I was going to say! ;-) -- Shaun. Hmmm, I think I'll still keep putting the paper in! and the tea bags! |
#21
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bleached paper
~misfit~ writes
Yep. I went and bought a document shredder when they were on special last year. We get a free local rag here twice a week, I shred it, two pages at a time, and layer it between lawn clippings etc. on the compost heap. The compost seems fine. shrug I don't use glossy paper or pages with excesively large amounts of colour though. I don't use a lot of tea bags but when I do, they go in too. :-) I find newspapers rot down easily enough without shredding. Shredding seems a lot of unnecessary work to me! -- Kay |
#22
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bleached paper
Somewhere on teh intarwebs Chris Hogg wrote:
On Sat, 31 Jan 2009 00:11:22 GMT, Rusty_Hinge wrote: The message from "Pete C" contains these words: Sheila wrote: How do I know which paper is bleached/unbleached? I have been putting paper in my compost heap, but just read you shouldn't put bleached in......oh no, how do I find out! 'White' paper is either bleached or dyed. I hate to think what is in the dye! You can't dye something white. Actually, it is bleached and if glossy, white clay is added, and it is heat-treated. (Basically, ironed...) Paper these days is mostly made from softwood, i.e. fast growing conifers. They are pulped, either mechanically or chemically with alkali (or a combination of the two) to break down the lignins and liberate the cellulose fibres, which are usually then bleached. Chlorine used to be used extensively, but chlorine dioxide, oxygen, hydrogen peroxide or ozone are used now to avoid the formation of harmful dioxins. White mineral fillers are usually added to the pulp slurry (e.g. chalk or china clay, aka kaolin), to give opacity and improve whiteness. The pulp slurry, at a very low solids content (little more than cloudy white water), is then run onto a continuous conveyor belt of wire mesh, where the water is sucked through, leaving a fragile web of wet fibres. This is continuously lifted off and passed over a series of heated rollers and drying stages to consolidate and strengthen it. If the paper is destined for the glossy magazine market, it is subsequently coated with a high-solids slurry of either china clay or chalk, depending on the quality of finish required, together with an adhesive to bind it. Historically, this might be casein, made from milk, but synthetic latex adhesives are used now. Optical brighteners can also be added. Under UV light these fluoresce into the visible spectrum, making the paper look whiter than it really is. Similar chemicals are added to washing powders, which is why some white shirts glow under the UV lighting in discos, for example. Paper coating is often done at very high speeds, hundreds of feet per minute. To give gloss, the dried, coated paper is passed through a series of pairs of heated polished steel rollers forced together under pressure, a bit like a series of old-fashioned clothes mangles. There is a very slight speed differential between opposite rollers which causes slip and which polishes the paper. The paper industry used to have a very poor reputation for polluting rivers with waste, particularly waste water containing residual cellulose fibres and chemical residues. This had a very high biological oxygen demand (BOD) as it decayed, resulting in dead fish and sterile rivers. But over the last few decades they've cleaned up their act enormously, and most pulp mills in the western world have to conform to very strict regulations, and AIUI many recycle everything they use with virtually no effluent at all. The suggestion that bleached paper is somehow harmful to living organisms in a compost heap is, at best, outdated, and probably never had any validity in the first place. Thats exactly what I was going to say! ;-) -- Shaun. "Build a man a fire, and he`ll be warm for a day. Set a man on fire, and he`ll be warm for the rest of his life." Terry Pratchett, Jingo |
#23
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bleached paper
Somewhere on teh intarwebs Sheila wrote:
Thats exactly what I was going to say! ;-) -- Shaun. Hmmm, I think I'll still keep putting the paper in! and the tea bags! Yep. I went and bought a document shredder when they were on special last year. We get a free local rag here twice a week, I shred it, two pages at a time, and layer it between lawn clippings etc. on the compost heap. The compost seems fine. shrug I don't use glossy paper or pages with excesively large amounts of colour though. I don't use a lot of tea bags but when I do, they go in too. :-) Cheers, -- Shaun. "Build a man a fire, and he`ll be warm for a day. Set a man on fire, and he`ll be warm for the rest of his life." Terry Pratchett, Jingo |
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