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The Wet-White-Cloth Fabric Test: How To Avoid Dye Migration
Of everything a new owner could be told, this is the most important, and it's the most regularly brushed aside. Dye migration takes place when dark fabric transfers colour onto the doll's skin, and it never reverses once it's took place. Try every cleaning goods and approach going and scrub all day; a stain that's been absorbed into TPE won't come out. Prevention is the only defence, and it starts with a straightforward test that takes two minutes and costs nothing.
 
Every Skin Tone Is at Risk
Behind it all sits some uncomplicated chemistry. Migration from the fabric into the TPE works like water soaking into a sponge; TPE is oil-based and dark dyes are normally oil-soluble. A few hours in a warm room in a dark dress is enough to cause a permanent stain, because the process starts right away on contact and accelerates with heat and pressure. It happens to some degree on every skin tone; on pale dolls, though, it's particularly apparent because dark marks are impossible to miss.
 
Rub It Against a White Cloth for Thirty Seconds
There's nothing complex about the test itself. Start with a hidden spot, an inside seam ideally, and take a small piece of the fabric from it, then wet it fully with clean water. Something white is the target, a cloth, cotton bud or kitchen paper, and you rub the wet fabric against it firmly for about thirty seconds. A trace of colour on the white cloth tells you the fabric will stain your doll, so don't put it on her. You can use the fabric without worry if the white cloth stays clean, since it's safe.
 
Fail It and It Will Stain
Water is used in the test because it simulates the moisture naturally present on the doll's skin, and that moisture is what activates the dye transfer. A worst-case scenario is precisely what you're after, and since wet fabric on damp skin transfers more dye than dry on dry, a water test delivers one. Pass the water test and the fabric is safe for normal use. Fabric that fails will stain, and nothing gets around that.
 
Manufacturing Processes Change
Same brand as last time? Repeat the test for every new piece of clothing in any case. Because dye batches vary and manufacturing processes change, there's no guarantee that a fabric that was safe last year is safe this year. What the test takes is two minutes; what it gives you is a doll that looks decent for years instead of permanent dark marks on her thighs. There's no excuse for skipping it, and the purchasers who learn this the hard way are the ones who end up purchasing replacement dolls.
 
Concentrated, Oil-Soluble Dyes
Failing the test most often: dark colours, cheap dyes, and anything that feels a little waxy or coated. Pay most attention to black, dark red, dark blue and dark purple, the worst offenders, whose dyes are concentrated and oil-soluble. Substantial quantities of pigment make bright neon colours risky as well. Cheap dyeing bleeds more than correct dyeing. That's why pricey clothing is regularly safer than cheap clothing, even though the difference isn't guaranteed.
 
White, Cream, Beige and Pale Pastels
Three types of fabric are safest: light colours, natural fibres, and pre-washed pieces. Because there's not enough pigment to cause noticeable staining, white, cream, beige and pale pastels are practically invariably safe. Dye stays put more firmly in cotton, linen and other natural fibres than in synthetics, so they're less likely to bleed. Washing beforehand gets rid of most of the excess dye, so pre-washed fabric is less likely to transfer onto the doll. Before putting any new clothing on the doll, pre-wash it when in doubt.
 
Salt Acts as a Mordant
A failed fabric isn't necessarily a lost cause; a few things are worth attempting first. A small quantity of white vinegar added to repeated hot washes (a number of) can help set the dye and minimise bleeding. Mordant is the term for what salt does, binding the dye to the fibres, and it's why an overnight saltwater soak can also help. Even so, no method here always works, and some fabrics will bleed whatever you do, yet it's worth attempting if you genuinely want to use a specific piece of clothing.
 
Lessening the Risk
When washing hasn't fixed the failure, the safest alternative is not to use the fabric. Stains on dolls are permanent, and a new doll is far more pricey than a replacement piece of clothing.When attachment to the fabric wins and you want to use it anyway, a few mitigation strategies are on offer. A lining of light-coloured fabric on the inside of the clothing puts a barrier between the dark dye and her skin. Or use the clothing for short periods only, and remove it immediately after use. Not foolproof, either of them, but they reduce the risk.
 
Always Test Generic Clothing
Understanding dye migration and testing their fabrics: those are the sellers to purchase doll clothing from, if you want the safest approach. You pay more for clothing from doll-specific brands, but it's also more reliable, because they're usually aware of the issue and opt for their fabrics accordingly. High street shops sell generic clothing that's a gamble, and the cheaper the item, the higher the risk. Before employing generic clothing, always test it.
 
Summer Changes the Rules
There's a seasonal factor as well that's worth knowing about. Worse in warm weather is dye migration, because heat accelerates the process. Particularly if the doll is stored in a warm room, summer can turn a winter pass into a fail. If you're buying new clothing in summer, test it more fully, and consider washing it a number of times before use. The same goes for a doll stored in a warm room, where the heat will cause any residual dye to migrate faster.
 
Once It's Set, It's There for Good
If it happens, the stain itself is worth understanding. Not sharp but diffuse: that's how dye migration stains ordinarily look, because the dye spreads through the material rather than sitting on the surface. Look for general darkening or discolouration of the region, not a clear outline of the fabric. As the stain spreads and deepens, it goes from hard to spot originally to more obvious over time. There's no fixing a set stain, so you either cover it with clothing or accept it as part of the doll's history.
 
Don't Skimp on the Thirty Seconds
The testing technique matters as much as the test itself. Don't skimp on the thirty seconds of rubbing, because a quick rub can miss a slow bleed. A light touch tells you nothing; rub as though you're trying to remove a stain, as that's the pressure the fabric faces against the doll's skin. Move to a fresh section of the white cloth each time, or the leftover stain from a previous test will give a false result. Wet fabric, rather than dry, is what you test, because water is what activates the dye transfer.
 
Multi-Coloured Clothing and the Dye Test
Testing a fabric with multiple colours? Start with the darkest section. Failing on the dark sections is possible even if a fabric passes on the light ones, and the dark sections are what will stain the doll. Test each colour separately if you're not sure, and be especially attentive with fabrics that have dark patterns on a light background, because the dark parts are the ones that bleed.
 
Fabric, Temperature and Pressure
People ask how much contact time a fabric needs before it stains the doll. Vast variation is the honest answer, shaped by the fabric, the temperature and the pressure. An hour is all it takes for some fabrics to stain, but others take days or weeks. The safest approach is to assume that any fabric that fails the test will stain eventually, and to steer clear of it totally. The bleed is cumulative and irreversible, so there's no safe exposure time for a fabric that bleeds.
 
Where Staining Is Most Common
Customers of a used doll should check for dye migration before purchase. Staining is most typical on the thighs, back and buttocks, so look there for dark patches. A doll with apparent dye stains is worth less than one without, because the stains are permanent and influence the doll's appearance. Cost the stains in. Covering them (with clothing or a new body) costs money, so factor that into the cost of a used doll with stains, and don't pay full price.
 
Final Word on Dye Migration
Single most key maintenance habit for any doll owner: the wet-white-cloth test. It takes two minutes, it costs nothing, and it avoids the most widespread cause of permanent damage. In a hurry? Test regardless. Every new piece of clothing, as part of your routine. By skipping the test you save five minutes, and that could cost you a doll. More info at this A Brutally Honest Rundown of Sex Dolls Today- Read Before You Buy (https://dark0de.org/showthread.php?tid=1114) d48_f76  which is worth considering with The Real Rundown of Sex Dolls- The Honest Breakdown (http://rc.zeitup.hera-software.de/thread-22191.html) and The Complete Rundown of Sex Dolls Right Now- What to Expect (https://thesolowargamer.com/showthread.php?tid=16793). Also check out  continued (https://ulundi.online/mybb/showthread.php?tid=387) alongside all  click here for more (https://forums.librenetwork.org/showthread.php?tid=403) as well as  about his (https://forum.makethemmove.com/showthread.php?tid=90658) as well as  go to this website (http://forum.anchorpointpodcast.com/viewtopic.php?t=387401) on top of  click site (https://mybb.nord.net/showthread.php?tid=877) bearing in mind  anchor (https://www.registrofiatbarchetta.com/viewtopic.php?f=1&t=2113791) together with  read this (http://rc.zeitup.hera-software.de/thread-11277.html) not to mention  find out here now (http://ahtop.top/showthread.php?tid=198) on top of  check out this site (https://forum.qui-gonline.com/viewtopic.php?t=22052) and  the original source (http://forum.exalto-emirates.com/viewtopic.php?f=7&t=245220) for more.