Advantages of Coloured Cotton
There are several advantages of naturally coloured over the white cotton varieties. They are briefly discussed below:
4.1 Effect on Human Health Cotton fabrics with artificial dyes have been reported to have adverse effects on the skin and human health. Artificial dyes cause allergy and itching on the skin and sometimes may cause skin cancer. Artificial dyes have adverse effect on their health. There is risk of skin cancer among the persons who regularly come in contact with artificial dyes. The fabric prepared from naturally coloured cotton lint is free from such adverse effects. There is no need of using artificial dyes, when the fabric is manufactured from naturally coloured cotton. Such fabric …show more content…
Commercial white cotton is by far the most pesticide dependent crop in the world. Although it only occupies 3% of the world’s farmland, it consumes more than 25% of the insecticides and 12% of the pesticides used worldwide. [21] 4.3 Effect on cost of fabric production The dyeing process adds to the cost of production of fabric. The dyeing process is omitted when naturally coloured lint is used for manufacturing of the fabric. Thus the cost of production of fabric can be reduced to some extent through the use of naturally coloured cotton.
4.4 Effect of Washing on lint colour
The reaction to washing of natural colours is quite different from that of synthetic colours. Dyed fabrics more or less fade with each washing. On the contrary, fabrics from naturally coloured cotton improve its fastness and colour intensity with each washing. Experiments have shown that washing fabrics from coloured cotton intensifies its colour. The idea that the natural colour intensifies with the exposure to sunlight may be true for specific colours but is certainly not applicable to all colours of cotton …show more content…
The green colour is controlled by one gene and brown colour with two or more genes. Cotton is an often cross-pollinated crop. In natural conditions, cross pollination occurs to the extent of 5-20 percent. Growing of coloured and white cotton in the vicinity will enhance the chance of contamination of white lint genotypes with coloured genotypes and vice-versa. Contamination may occur in three ways, viz. (1) through natural out crossing with white cotton, (2) during ginning, and (3) during de-linting. Growing of white cotton in the field in which coloured cotton was grown in the previous year may also lead to contamination through volunteers. Hence, cultivation of coloured cotton should be restricted to small areas only. Moreover, research work on coloured cotton should be restricted to only few research centres to avoid contamination of white cotton [5,
There are several advantages of naturally coloured over the white cotton varieties. They are briefly discussed below:
4.1 Effect on Human Health Cotton fabrics with artificial dyes have been reported to have adverse effects on the skin and human health. Artificial dyes cause allergy and itching on the skin and sometimes may cause skin cancer. Artificial dyes have adverse effect on their health. There is risk of skin cancer among the persons who regularly come in contact with artificial dyes. The fabric prepared from naturally coloured cotton lint is free from such adverse effects. There is no need of using artificial dyes, when the fabric is manufactured from naturally coloured cotton. Such fabric …show more content…
Commercial white cotton is by far the most pesticide dependent crop in the world. Although it only occupies 3% of the world’s farmland, it consumes more than 25% of the insecticides and 12% of the pesticides used worldwide. [21] 4.3 Effect on cost of fabric production The dyeing process adds to the cost of production of fabric. The dyeing process is omitted when naturally coloured lint is used for manufacturing of the fabric. Thus the cost of production of fabric can be reduced to some extent through the use of naturally coloured cotton.
4.4 Effect of Washing on lint colour
The reaction to washing of natural colours is quite different from that of synthetic colours. Dyed fabrics more or less fade with each washing. On the contrary, fabrics from naturally coloured cotton improve its fastness and colour intensity with each washing. Experiments have shown that washing fabrics from coloured cotton intensifies its colour. The idea that the natural colour intensifies with the exposure to sunlight may be true for specific colours but is certainly not applicable to all colours of cotton …show more content…
The green colour is controlled by one gene and brown colour with two or more genes. Cotton is an often cross-pollinated crop. In natural conditions, cross pollination occurs to the extent of 5-20 percent. Growing of coloured and white cotton in the vicinity will enhance the chance of contamination of white lint genotypes with coloured genotypes and vice-versa. Contamination may occur in three ways, viz. (1) through natural out crossing with white cotton, (2) during ginning, and (3) during de-linting. Growing of white cotton in the field in which coloured cotton was grown in the previous year may also lead to contamination through volunteers. Hence, cultivation of coloured cotton should be restricted to small areas only. Moreover, research work on coloured cotton should be restricted to only few research centres to avoid contamination of white cotton [5,