AY Honors/Mat Making/Answer Key

1. In your culture name the materials which are used in mat making.

• 

  Coconut
• 

  Bulrush
• 

  Hemp
• 

  Straw
• 

  Date palm
• 

  Screw pine

Mats are made of many, many different types of material, including:

• Coir (coconut fibers)
• Reeds
• Bulrushes (including cattails)
• Hemp
• Rattan (cane)
• Various grasses
• Straw
• Palm leaves
• Screw pine (Pandanus) leaves

2. Explain and demonstrate how to prepare this material.

Coir

Green coconuts, harvested after about six to twelve months on the plant, contain pliable white fibres. Brown fibre is obtained by harvesting fully mature coconuts when the nutritious layer surrounding the seed is ready to be processed into copra and desiccated coconut. The fibrous layer of the fruit is then separated from the hard shell (manually) by driving the fruit down onto a spike to split it (De-husking). A well seasoned husker can manually separate 2,000 coconuts per day. Machines are now available which crush the whole fruit to give the loose fibres. These machines can de-husk up to 2,000 coconuts per hour.

Brown fibre

The fibrous husks are soaked in pits or in nets in a slow moving body of water to swell and soften the fibres. The long bristle fibres are separated from the shorter mattress fibres underneath the skin of the nut, a process known as wet-milling. The mattress fibres are sifted to remove dirt and other rubbish, dried in the sun and packed into bales. Some mattress fibre is allowed to retain more moisture so that it retains its elasticity for 'twisted' fibre production. The coir fibre is elastic enough to twist without breaking and it holds a curl as though permanently waved. Twisting is done by simply making a rope of the hank of fibre and twisting it using a machine or by hand. The longer bristle fibre is washed in clean water and then dried before being tied into bundles or hunks. It may then be cleaned and 'hackled' by steel combs to straighten the fibres and remove any shorter fibre pieces. Coir bristle fibre can also be bleached and dyed to obtain hanks of different colours.

White fibre

The immature husks are suspended in a river or water-filled pit for up to ten months. During this time micro-organisms break down the plant tissues surrounding the fibres to loosen them — a process known as retting. Segments of the husk are then beaten by hand to separate out the long fibres which are subsequently dried and cleaned. Cleaned fibre is ready for spinning into yarn using a simple one-handed system or a spinning wheel.

Hemp

REWORD THIS QUOTE FOR USE

One of the reasons hemp fiber has been valued is because of its length. The primary bast fibers in the bark are 5–40 mm long, and are amalgamated in fiber bundles which can be 1–5 m long (secondary bast fibers are about 2 mm long).

Hemp is a bast fiber crop, i.e. the most desirable (“long”) fibers are found in the phloem-associated tissues external to the phloem, just under the “bark.” The traditional and still major first step in fiber extraction is to ret (“rot”) away the softer parts of the plant, by exposing the cut stems to microbial decay in the field (“dew retting,” shown in Figs. 46 and 47) or submerged in water (“water retting, ” shown in Fig. 13). The result is to slough off the outer parts of the stem and to loosen the inner woody core (the “hurds”) from the phloem fibers (Fig. 14). Water retting has been largely abandoned in countries where labor is expensive or environmental regulations exist. Water retting, typically by soaking the stalks in ditches, can lead to a high level of pollution. Most hemp fiber used in textiles today is water retted in China and Hungary. Retting in tanks rather than in open bodies of water is a way of controlling the effluents while taking advantage of the high-quality fiber that is produced. Unlike flax, hemp long fiber requires water retting for preparation of high-quality spinnable fibers for production of fine textiles. Improved microorganisms or enzymes could augment or replace traditional water retting. Steam explosion is another potential technology that has been experimentally applied to hemp (Garcia-Jaldon et al. 1998). Decorticated material (i.e. separated at least into crude fiber) is the raw material, and this is subjected to steam under pressure and increased temperature which “explodes” (separates) the fibers so that one has a more refined (thinner) hemp fiber that currently is only available from water retting. Even when one has suitably separated long fiber, specialized harvesting, processing, spinning and weaving equipment are required for preparing fine hemp textiles. The refinement of equipment and new technologies are viewed as offering the possibility of making fine textile production practical in western Europe and North America, but at present China controls this market, and probably will remain dominant for the foreseeable future.

Rattan

Generally, raw rattan is processed into several products to be used as materials in furniture making. The various species of rattan ranges from several millimetres up to 5-7 cm in diameter. From a strand of rattan, the skin is usually peeled off, to be used as rattan weaving material.

3. Name plants that can be used for making dyes in your culture. Tell where they come from and how to prepare them for dying.

There are many thousands of different plants that can be used for dying, including ones you can find in your own back yard or local forest. Roots, nuts and flowers are all common sources of dye. Take a look at this list for plants sorted by color and the source of these directions. This worldwide wiki can't tell you which plants are in YOUR culture, but with a little research you will know.

Here are some generalized directions that should work with most plants. Variation may be required for specific plants, and different cultures may do things somewhat differently. This assumes you will either dye the material before weaving or dye the entire finished mat at once. There are two main jobs - prepare the material and make the dye.

Preparing the Mat Material for Dyeing

You will likely need to prepare a simple Color Fixative:

a) Salt Fixative (for berry dyes) 1/2 cup salt to 8 cups cold water

b) Plant Fixatives (for plant dyes) 4 parts cold water to 1 part vinegar

Add material to be died to the fixative and simmer for an hour. Rinse the material and squeeze out excess. Rinse in cool water until water runs clear.

Preparing the Plants

Step 1: Gather the plant material: blossoms should be in full bloom, berries ripe and nuts mature for best results

Step 2: Next chop your plant material into small pieces and put it in a suitable pot. Add twice as much water to your plant material. Bring to a boil, then simmer for about an hour. Next strain the plant material out. A time saver is to put the chopped plant material in a net bag, just pull the bag instead of straining.

Here is one example to follow in your report.

Rattan

The fruit of some rattans exudes a red resin called dragon's blood. This resin was used as a dye for violins, among other things. The resin normally results in a wood with a light peach hue.

Dragon's blood resin is produced from the rattan palms of the genus Daemonorops of the Indonesian islands and known there as jerang or djerang. It is gathered by breaking off the layer of red resin encasing the unripe fruit of the rattan. The collected resin is then rolled into solid balls before being sold.

4. Show how to use native and synthetic dyes in dyeing mat making material.

Using Natural Dyes

Adventist Youth Honors Answer Book/Natural dyes

5. Make two mats showing two different types of weaving. One of the mats must have a reasonably fine weave.

This is where you show what you learned and end up with two mats you can use or give as gifts.

References

http://www.hort.purdue.edu/newcrop/ncnu02/v5-284.html