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Showing posts with label What. Show all posts
Showing posts with label What. Show all posts

Monday, May 1, 2017

What? - Rayon Fabric

Rayon was the first manufactured(regenerated) fiber. In 1855, George Audemars, a swiss chemist, discovered how to make cellulose nitrate. In 1884, Count Hilaire de Chardonnet made the first man made fibers from nitrocellulose. He is referred to as the "father of rayon". Chardonnet got the original French patent, and established the world's first rayon factory. From here other scientists developed more cost effective ways of making other types of rayon.

In 1892 C.F. Cross, E.J. Bevan and Clayton Beadle took out a patent for Viscose which became the basis for the viscose, rayon and cellophane industries. The first patent for "art silk" occurred in 1894 tho it took until 1910 for the first US commercial rayon production to begin. The textile industry switched from calling it "art silk" to rayon in 1924.
Cellulose
The basics of its production are cellulose (often from trees) which is converted into a soluble compound.

An example of a spinneret
A solution of this compound is passed through a spinneret to form soft filaments that are then converted into almost pure cellulose in the final product. Rayon fabrics have different strength and stretch characteristics created by adjusting the drawing process applied in spinning.
Close up of a Rayon fabric


Basic rayon has low wet strength. Thus it can become unstable and may stretch or shrink when wet. Dry cleaning or hand washing was normally recommended to preserve the appearance of regular basic rayon. If machine washed the garment could shrink as much as 10%. Companies over the years have tried to correct this low wet strength and there has been many advancements in rayon development. These advancements have resulted in Modal, lyocell and Tencel to just name a few.

Most rayon in the present day can be machine washed and tumble dried. It wrinkles easily but a light steam can remedy this. It is more absorbant then cotton, soft, comfortable to wear, drapes well and is easily dyed in a multitude of colours.

If you want to learn a bit more about early Rayon production the following movie is approx. 30 minutes.


Monday, April 24, 2017

What? - Organic Cotton - Good or Bad?




Organic Cotton is not the perfect solution and whether it is good or bad can get confusing. It is a good alternative to many other options but one must always be aware of labeling. Unless an item is labeled with accreditation from an appropriate third party the word organic can mean just about any thing. The two most common labels are "Made with Organic" this will normally mean that it is 70% certified organic, the other is "Cerified Organic" this means it was made from 95% organic materials. But until there is a standardized global accreditation that everyone follows this cannot be guaranteed. One of the most common uses for organic cotton presently is large fashion companies using it for about 50% of their blends in t-shirts, some are making an effort to reach "Certified Organic" status. Underwear and infant wear are also areas of fashion where it is consistently becoming more prominant.


Many people living in the United States who are concerned about organics will probably recognize the above logo. This is from the United States Agriculture Department Organics and you may see this occassionally on clothing in the US. This would ensure that the raw cotton was organic but not that the rest of the process involved in the making of the garment was enviromentally conscious.


GOTS goal is to help standardize regulation between countries on what constitutes an organic textile. Organizations from Canada, United States, Japan and Britian etc belong to this larger international accreditation board. In a lot of ways organic clothing is like organic food, make sure you read the labels for fibres/ingredients. Garments that  are labeled FairTrade plus Organic are the most enviromentally conscious, that is unless you are also concerned about your carbon footprint. As I said it can all get confusing. The basic thing to remember is Knowledge is Power. Every individual needs to decide what their priorities are when it comes to Eco Fashion and often they may use some form of a sliding scale. I also include whether it is Made Local and the companies general business practices in my equation which can confuse things even more.

Now on to some basic pros and cons of raw organic cotton.
Pros
-Farmers exposure to toxins greatly reduced
-cotton is a breathable, lightweight fabric choice for a large variety of clothing eg. t-shirts, jeans and other casuals
-normally done as a rotaing crop which helps maintain soil fertility
-better for protection of local wildlife as no leeching of chemicals into surrounding enviroment 
-premium normally paid to farmers approx. 20% more
-if FairTrade farmers are also guaranteed better wages and conditions
- a variety of cooperatives are being created in developing countries to help small farmers
-hypo allergenic

Cons
-whether organic cotton or conventional cotton it is one of the most water intensive crops. It is the 2nd thirstiest crop in industrialized countries and 4th in developing countries
-organic agriculture at the moment is still less efficient, meaning same amount of resources produce a lower volume of product - organic yields are often 25% less then conventional
-weed control can be an issue - thus more labour intensive, often greater fuel emissions and wear and tear on equipment which equals higher carbon footprint
-a bug infestation can cause devastating effects and can lead to 50% or greater loss in total yield
-must be cleaned before processing so this can be an added expense
-certification is normally to expensive for farmers, especially in developing countries. It also takes a minimum of three years to attain
-cost of finished garment more expensive for consumer
-limitation of colourways available to keep finished textiles organic

Is any type of cotton garment truly sustainable? This question can open up a whole new debate. Over the last century Cotton Growers have often been under scrutiny on various practices. There has been issues of poor working conditions, slave labour, child labour etc. It is also said that fashion manufacturing is only 2nd to the oil as the most polluting industry. Many fashion companies are making a conscious effort to become more eco friendly and this is a great movement to support. We all need to think how our purchasing actions effect others and the world we live in so any knowledge of where, what, how and who made our clothing is a wonderful base for this. A good hashtag to check out for this on social media is #whomademyclothes 





Tuesday, March 7, 2017

What? - Crimplene


 (ICI) developed and trademarked Crimplene in the 1950s. The thick polyester yarn is called Crimplene as is fabric made from this yarn. The yarn can be woven, but was most usually seen in a double knit. Crimplene fabric is heavy, wrinkle-resistant, wash-and-wear and easy to sew.
Crimplene will always give me fond memories. As a young child I remember having numerous outfits and other things made from the fabric. We lived in an area where various family friends worked at the Celenese plant in Millhaven. It was the Millhaven Fibers Plant and was the third polyester plant in the world opening in the fall of 1955. I always just remembered it as Celenese in Millhaven but see that name entered in 1972. It had started life as a polyester tire plant but in the late 60's early 70's it switched to yarns. The reason I had numerous things made from crimplene was the fact that the plant sold ends by the pound. I remember digging through a garbage bag, picking out colours, and then cutting squares so a blanket could be made. It seemed everyone in the neighbourhood had one of these blankets in their car, on the porch, with the picnic basket. It was something that could be thrown on the ground and easily washed out and then hung on the line if it got dirty.
During the 80's lines kept shutting down in the plant and they became one of the many textiles plants that closed or were retrofitted to create something else. Millhaven Fibers ceased to exist and now Celenese creates emulsion polymers and medical molds etc, not crimplene.



 Various adverts can be found like the one above showing men's shirts made from the fabric. I mostly just remember men wearing the pants and seeing what was referred to as leisure suits on TV. Like Mr Furley on Three's Company, this is how I practically always picture Don Knotts.


This following pattern picture is one of the most common looks I remember. These are also similar to what you can mostly find at vintage or thrift shops now. The vibrancy of the colours and prints were exceptional and it is one of the reasons crimplene is so recognizable and still has a following. Much of the clothing you can find nowaday looks new, the main thing when looking at it is to check for pilling, snags and pulls. But then if you are a purchaser of vintage or used clothing this is one of the standards to check for on anything.



 This is more similar to what I would of been wearing. Though by the time I reached the age of the girls in the advert I refused to wear crimplene. It may be extremely easy to care for because it was wash and wear but I assure you on a hot day it is not your friend.



Now if I could of had an outfit like Diana Riggs/Emma Peel from The Avengers I probably would of lived in it. This is one of the iconic looks of Emma Peel. I always was envious of her wardrobe and I have to admit I still am. She was one of the first strong self-sufficient women I remember from TV and she had the coolest clothes and boots.