在家里用厨余——茶叶和咖啡渣染色

Preetha R, Nancy Angeline Rani
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引用次数: 0

摘要

食品和纺织工业被认为是人类生存最重要的工业。食品工业产生了大量的废物,这些废物被用作动物饲料或进行堆肥,或者只是作为垃圾填埋场。其中一些有机废物含有着色颜料,可有效地用于为纺织品着色。因此,有可能利用食品工业的废物来填补纺织材料的空白。化学染料更容易使用,也能产生明亮的颜色,但另一方面,它会对环境造成污染。来自植物的天然染料需要大量使用,这可能会导致自然资源的枯竭。考虑到这些因素,食品工业的废料可以有效地用于纺织品的染色,这将使天然染色变得负担得起,并使纺织品染色过程具有可持续性。这种可持续的方法通过利用一个行业产生的废物并为另一个行业创造增值项目来保护环境。本研究是考虑到可持续性方面,这是互惠互利的食品和纺织工业。天然染料可以在厨房或花园里找到,可以产生美丽的色彩。一种简单的染色工艺可以利用家庭厨房里可用的资源在家里给织物上色。以日常厨余垃圾中两种广泛使用的饮料——茶渣和过滤咖啡渣提取后的煎渣为研究对象。这些废物不是直接作为垃圾填埋场,而是在处理之前提取染料。用提取的染料对明矾浸染棉织物进行染色。这些染色织物具有良好的耐汗、耐摩擦、耐洗涤、耐熨烫的色牢度。由于这些染料是天然的,它们是安全和环保的。这项研究证明,可以利用丢弃的厨房垃圾提取染料,这些染料可以用来制造增值产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
DYEING AT HOME FROM KITCHEN WASTE - TEA AND COFFEE RESIDUE
Food and Textile industries are considered to be the most vital industries for human survival. The food industry generates an enormous amount of waste which is used as animal feed or undergoes composting or just go as landfills. Some of these organic wastes contains colouring pigments which can be effectively used to colour textiles. Hence there is a possibility to bridge the gap utilizing the waste from food industry to colour textile materials. Chemical dyes are easier to use and produce bright shades but on the other hand it causes pollution to the environment. Natural dyes from plant sources are required in large amounts which may cause depletion of natural resources. Considering these factors, the waste material from food industry, which is available at little, or no cost can be effectively used to colour textiles, this would make natural dyeing affordable and bring about sustainability in textile dyeing process. This kind of sustainable approach protects the environment by utilizing the waste produced by one industry and creating a value-added item for another industry. This study was carried out considering the sustainability aspect which is mutually beneficial to food and textile industries.Natural dyes can be found in the kitchen or in one’s garden can produce beautiful hues. A simple dyeing process can be used to colour the fabric at home utilising available resources in the home kitchen. Decoction waste after extracting two widely used beverages - tea dust and filter coffee dust which are part of everyday kitchen waste were used for the study. Instead of these wastes going directly as landfills, dye was extracted prior to its disposal. Cotton fabric, mordanted with Alum, was dyed with the extracted dye. These dyed fabrics showed good to excellent colour fastness to perspiration, rubbing, washing, and pressing. Since these dyes are natural in origin, they are safe and eco-friendly. This study proves that throw-away kitchen waste can be utilized to extract dyes that can be used to create value-added products.
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