Laboratory Practicals in Dyeing

Following are the documents depicting the laboratory practicals for dyeing. These are extremely useful for students of Textile Chemistry and textile enthusiast.

1. Dyeing with Vat Dyes

2. Simple Color Matching 

3. Dyeing with Direct Dyes

4. Dyeing of Acrylic

5. Dyeing of Polyester

6. Dyeing of Wool with Milling Acid Dyes

7. Dyeing of Wool with Premetallised Dyes

8. Dyeing of Wool with Lavelling Acid Dyes

9.Creation of a successful match prediction database

10. Mercerising Cotton

11. Determination of Milling Shrinkage in Wool

12. Dyeing of P/C blend

13. Dyeing of Polyester with Disperse Dyes

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how to check a garment for fitting

• Lengthwise grainlines, side seams, center front and center back seams hang straight or at right angles to the floor.

• Crosswise grainlines are parallel to floor.

• Adequate wearing ease is available for sitting, moving and bending.

• Armhole seams curve smoothly over the end of shoulder.

• Darts point to the fullest part of the curve.

• Shoulder seam length comes to end of shoulders.

• Sleeves are comfortable with no wrinkles.

• Hipline fits smoothly.

• Hemline is even.

• Pant legs hang smoothly and do not restrict any part of the legs.

• Crotch depth is right, neither too low and baggy nor too tight and binding.

• Pants hang smoothly from the waist. The waistband fits the body comfortably and stays in place when bending and sitting.

• Pants have no pulls or excess fabric across the front or back crotch level.

• The length of the garment is becoming.

Source

 

Some Common Synthetic and Blended Fabrics-2

Chiffon

Chiffon Fabric is a lightweight, sheer and plain woven fabric.It is a textile made from silk, cotton, nylon, polyester, or rayon.This fabric can be difficult to work with because of its light and slippery textures. Due to this delicate nature, chiffon must be hand washed very gently. This fabric is a good choice for manufacturing blouses,dupattas and various types of ladies dresses. It is also used for making bridal gowns,scarves and evening and formal wears.

Polyester Chiffon

It is available in the GSMs of 35, 40, 50, 60 and 70 with widths of 42", 44" and 56"

A typical polyester chiffon has the following specifications: 30D/14/2000 Flat S+Z - 30D/14/3200 Flat `s` 88/80

Nylon Chiffon

This can be hand dyed and dip dyed which can give unique coloring effects. It is available in 30, 35 and 40 GSM and in widths of 36", 38", 40", 42" and 44"

Cationic Chiffon

Cationic Chiffon is a polyester fabric woven with 2 colors of thread. The different colored thread in the weave of the fabric provides an elegant iridescent quality giving this chiffon greater depth of color and character over the regular polyester chiffon.


Cationic is a  type of dye used on acrylic or on modified polyester or modified nylon yarn. It is often used to achieve cross dyed effects.  Cationic dyeable yarn is woven in a pattern with regular yarn in the same fabric. The pattern becomes visible by dyeing the fabric in 2 baths, one for each of the types of yarn.

Silver Chiffon

A typical silver chiffon fabric has the following specifications:

 It has 100% polyester, with 30D x 30D with a pick density of 177 x 109 and with a weight of 53 GSM.

Viscose Chiffon

It is composed of 100% viscose. It can be hand dyed and dip dyed. It has extra smoothness, comfort and delicacy because of viscose. It is available in 30, 35 and 40 GSM with widths of 40 and 42 inches. Also known as Japan. A typical fabric has the following configurations.

Here is a video that depicts how to illustrate Chiffon and other sheer fabrics, enjoy !!

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Some Common Synthetic and Blended Fabrics-1

Here is a list and pictures of some synthetic and blended fabrics

Satin


Satin is a type of glossy fabric.

It is commonly used in apparel : satin baseball jackets, athletic shorts, women's lingerie, nightgowns, blouses and evening gowns, but also in some men's boxer shorts, shirts and neckties.Other uses include interior furnishing fabrics, upholstery, and bed sheets.

Polyester Satin

They are available in the following weights:

GSM: 85, 100, 140, 160, 210, 230

Lycra Satin

A typical fabric has a composition of 97% Polyester with 3% Spandex, with specifications of 50D*75D+40S and with a fabric density of 250*104. Available in widths of 57"/58" with a weight of 90GSM .  Also available in 100, 120 and 140 GSM and widths of 42" and 44". 

Nylon Satin

 It is available in the GSM: 80, 100 with width of 42”, 44”. 

You can have a look here at the qualities running in grey fabric, yarns and finished products in Surat.

The following is a video depicting how to illustrate satin