Image via Wikipedia

You’ve just ordered a new velvet and unrolled it to admire your purchase. But how do you re-roll it?

When you roll almost any fabric you should have the face on the inside. With a velvet this is the pile so you have the pile on the inside.

Some, but not all, velvet piles stand straight up others will ‘lay down’. for the former it does not matter which way you then roll the fabric (provided the pile is on the inside). However for typically longer pile which lays down (ie you can brush it flat with your hand in one direction only) then you should roll the fabric down the pile as you return it to its roll.

Hopefully that made sense. Good luck.

Related Articles

• Mohair Velvet & Other Velvets (kothea.com)
• Projects ” How-To’s ” Red Velvet Valentine Whoopie Pies (cutoutandkeep.net)
• ‘VELVET’ SURPRISE: Moe Tucker, tea party fan (politico.com)
• Red Velvety (farhanahizani.wordpress.com)

Image by rogue-designs via Flickr

Sanforising is a finishing technique for already woven fabric.

Interior Designers do not need to know the detail of exactly what happens. So, in brief, the process is usually associated with cotton fabric and often also with shirting fabric. The idea behind sanforising is to pre-shrink the fabric. Clearly any shrinkage after the fabric has been made up may cause problems and Interior Designers DO need to be aware of that!

When sanforised fabric is subsequently made up into curtains or used on upholstery the naturally occurring effects of fabric stretching are reduced, but like many natural fabrics some further shrinkage could occur.

As a general rule: more tightly woven fabrics tend to shrink less.

The sanforisation process involves stretching and heating damp fabric over a series of rollers

Related articles

• How to Get The Most Out Of An Interior Designer (via Women’s Business Connection Blog) (kothea.com)
• Fabric Fridays – 5/13/11 (riverplacequiltandsew.wordpress.com)
• Careful Fabric Usage For Housing Interior Plans (sooperblog.com)

Essentially you need to look at the Martindale or Rub Test result for the specific fabric in question. Two silk velvets can be quite different.

As with all velvets a proper cleaning regime is important to extend the life of the fabric.

One of KOTHEA’s silk velvets has a rub test/Martindale of 25,000. This is more than adequate for general upholstery.

Fortunately static is rarely noticed when curtains are hung, this is partly because of the chosen combination of materials and partly also because the weight of the material overcomes the weak power of static electricity. However if you do have this rare problem then you have already invested a lot of time, effort and money into buying curtain material and having them made up and hung. Do you have to start again?

Before answering that dreaded question it is important to understand what causes the problem in the first place. There is little point in re-making the curtains if the same problem is going to happen again.

Static is a natural phenomena. The main way in which static is created is when two materials are rubbed together causing an excess electrical charge on their surfaces. It is not, however, caused by the friction itself and it is not caused because a material is synthetic/man-made.

All materials differ in their propensity to cause static. It takes the properties of TWO materials to cause static; one must be good at giving up ‘electrons’ and the other good at receiving ‘electrons’. The better that each of the materials are at giving/receiving ‘electrons’ then the more static there will be. For any scientists reading, you might remember that this is measured by The Triboelectric Series.

On the Triboelectric Series; hair, wool, glass, nylon and fur are good at giving up electrons. Whereas silk, paper and cotton are at the other end of the scale and are bad at giving up electrons. Conversely; wood, metals, polyester and styrene are bad at attracting electrons whereas at the other end of this side of the scale polyurethane, polyethylene, vinyl/PVC are good at attracting electrons.

Thus a combination of PVC and hair would produce the most static whereas cotton and wood would produce the least. If you think about combing your hair then this should ring true.

Polyester is very similar to gold, platinum, brass, silver, nickel and copper in its static generating properties. Whereas, cotton is one of the lowest materials on the scale.

So the first lesson, bearing in mind the above, is that the choice of materials ie the curtain and the lining are critical. Also any surface that the curtain comes into contact with is important. So the second lesson is to consider the location.

Let’s turn now to how the curtain is made up. An experienced, professional curtain maker should know how to avoid the static problem.

Taking an example of a mixed composition fabric. Let’s say 40% cotton, 40% viscose and 20% polyester. And let’s also say that the material is loosely woven and has movement. Looking at such a fabric an experienced curtain maker would say that the fabric ‘needed taming’ and that a light cotton inter liner should be used. In addition to that the following details should be followed:

• The interlining should be locked in with 3 inch stitches. This should not be knotted;
• At the leading edge the interlining should be serged and locked in;
• The hem should be herring bone stitched. The stitches should not be too large and should not catch the face fabric; and
• Because of the nature of the fabric, the hem should slightly break on the floor.

These are not generic solutions to all curtain static problem. But they should be considered by the curtain maker.

So we have seen that: the choice of material; how the design works when hung; and how the curtain is made up, all have impacts on the creation or dissipation of static.

Essentially the fabric’s life is increased with better durability and resilience. The handling characteristics of the fabric can be improved; and knit backing also helps prevent seam slippage.

The same principle applies for the fabric whether or not it is to be used for either upholstery or wall covering. There will certainly be other requirements for contract usage, say, in hotels and aviation and also other treatments like fire retardancy or stain protection would be required for contract upholstery.

Posted in Product Comments Tagged: chenille, contract fabric, contract fabrics, knit back, silk, silk damask, silk fabrics, silk velvet, silk velvets, silks, textured upholstery fabric, upholstry fabric, velvet ]]> http://blog.kothea.com/2009/01/05/knit-back-fabric-backing/feed/ 1 KOTHEA - Passionate About Fabrics For Top Designers http://blog.kothea.com/2009/01/02/fabric-treatment-companies/ http://blog.kothea.com/2009/01/02/fabric-treatment-companies/#comments Fri, 02 Jan 2009 21:35:19 +0000 Luxury Fabric, Inspired Design http://kothea.wordpress.com/?p=34 ]]> We are often asked to recommend farbic treatment companies for flame retarding in contract installations. Most treatment comapanies offer other services such as; back coating fabric for walls, and stain resistance/repellency. There are several such companies in the UK and at various times we have used all of the following:

Essex Flameproofing,

Textiles FR, and

TEK Treatments

Just click the company name to take you to their web site. Please feel free to add comments to this posting recommending any suppliers you have used but any negative comments about other comapnies are not permitted on this site. Thank you.