Page 21 - Shawl Weaving Artisan - TP

Textile & Handloom Exercise 1.1.07

Shawl Weaving Artisan - Textile Fibers and Safety

Identification of fibers by burning and microscopic test

Objectives : At the end of this exercise you shall be able to
• identify fibers with burning test
• identify fibers with microscopic test.

Requirements

Tools/Equipment’s/Instruments • Eraser - 1 No.
• Microscope (Medium) - 1 No • Wool fiber - 5 gms
• Cotton Fiber - 5 gms
Materials • Silk fiber - 5 gms
• Notebook - 1 No. • Nylon fiber - 5 gms
• Pencil - 1 No. • Acrylic fiber - 5 gms

PROCEDURE

TASK 1: Identify different types of fibers with burning test

Refer Exercise No. 1.1.01 in Task 2

TASK 2: Identify different types of fibers with microscopic test
1 Take one small sample from the given samples. 9 Adjust the light source and focus.
2 Give identification code nos like 1,2,3,…6, to the 10 Look for the overall structure of the fibres, such as
fiber samples. their shape, arrangement, and uniformity.
3 Clean the sample to remove dust or impurities, if 11 Switch to a higher magnification (e.g., 40x) for a
necessary. closer look at finer details.
4 Place the fibre sample on a clean glass microscope 12 Observe the characteristic of given fibre.
slide.
13 Note the fibre’s Surface structure (smoothness or
5 Than spread the fibre so individual strands are roughness), Diameter and uniformity, presence of
visible. any impurities in your notebook.
6 Add a drop of water or mounting medium to enhance 14 Take photos or sketch what you see under the
visibility and prevent movement.(if needed). microscope.
7 Gently place a coverslip over the fibre to flatten it 15 Remove the sample, clean the slide and coverslip.
and protect it during observation.
16 Repeat the exercise with other fiber samples from
8 Turn on the microscope and select the appropriate step1 to 14.
objective lens (start with a low magnification, e.g., 4x 17 Note all the characteristics you observe during the
or 10x). microscopic test in the following table 1.

Table 1

Surface structure
S No. Sample code Diameter and uniformity Presence of any impurity
(smooth or rough)
1
2

3
4

5

9