With the development of science and technology and the improvement of people’s living standards, people’s pursuit of textiles is not only satisfied with the basic functions of warmth and decoration, but also has an increasing demand for functional textiles that are healthy and environmentally friendly. Sexual textiles are also constantly innovating in types. In addition to waterproof, moisture-wicking, anti-UV, flame-retardant, anti-static, anti-bacterial and anti-mite, there are also new functional fabrics such as moisturizing and skin care, hand and skin feel, various fragrances and medical care. However, functional fabrics are constantly emerging. Why do fabrics have special functions? Do functional fabrics contain active ingredients?
Today we will reveal the mystery of functional fabrics in terms of active ingredients. veil.
Cannabidiol (English abbreviation CBD) has the effects of improving fatigue, soothing mood, and antibacterial and anti-inflammatory. CBD is also used as a functional finishing agent on textile fabrics.
How to identify whether fabrics contain cannabidiol
First of all, the key point to identify whether fabrics contain CBD is how we extract extremely trace amounts of CBD from fabrics. There is currently no testing standard for this. Based on relevant information and the nature of CBD being easily soluble in organic solvents, we select different Various solvents were used at different temperatures and different extraction times to explore extraction solutions, and finally determined the optimal solution for extracting CBD from fabrics.
Secondly, perform LC-MS quantitative testing on the fabric extract. Figure 1 shows the LC-MS test chart and standard curve of the extract. RT=2.72min is the retention time of CBD. The CBD content is quantitatively calculated through the external standard method.
Figure 1 LCMS test chart and standard curve of the extraction solution
How to identify whether fabrics contain shea butter?
In recent years, underwear and socks treated with shea butter have become more and more popular. It has become more and more popular. Studies have found that shea butter is close to the various indicators of human sebum secretion. It contains rich non-saponifiable ingredients and is easy for the body to absorb. It can prevent dryness and cracking, further restore and maintain the skin’s natural elasticity, and at the same time It also has an anti-inflammatory effect. So, do shea fabrics really contain shea butter? We know that the main component of oil is fatty acid glycerides. Different oils have different fatty acid content and distribution. CXS32R-2017 “Regional Standard for Unrefined Shea Butter” stipulates the distribution of related fatty acids of shea butter.
Therefore, the judgment of shea butter can be judged by measuring the fatty acid distribution. The textile fabric undergoes a series of pre-treatments such as solvent extraction and esterification. The content of various fatty acids is measured through GCMS, and the proportion of each fatty acid is obtained, and then compared with the standard. Figure 2 shows the measured fatty acid distribution of a certain type of sock. It can be seen that the distribution of each fatty acid is within the range specified in the standard, therefore, the socks contain shea butter.
Figure 2 Measured fatty acid distribution of a certain type of socks
Currently in China Various functional testing standards for functional textiles have been formulated abroad. However, for the endless functional fabrics currently on the market, the coverage of the existing national standard functional testing methods is still very limited. Many products such as skin care and moisturizing At present, apart from human efficacy experiments, it is difficult to evaluate whether functional fabrics such as texture and feel are truly functional. However, human efficacy experiments often take a long time and are expensive. It is an economical and convenient way to initially judge whether functional fabrics are functional through the detection of active ingredients. It requires the help of instrumental analysis. Analysis and determination of functional ingredients of market fabrics:
1. Beauty and skin care: hyaluronic acid, squalane, aloe vera, shea butter, argan oil, camellia oil, amino acids, collagen, silk protein.
2. Hand and skin feel: cool feeling: mint and other plant extracts, xylitol, thermal/cold insulation phase change materials, etc.
3. Health care: grass coral, mugwort, cannabidiol, caffeine, artemisinin, pomegranate, ginseng, ganoderma, white peony root, maca, etc. Plant active ingredients.
4. Fragrance: lavender, rose, jasmine, freesia, pine and cypress.
5. Medical and health care functions: determination of certain trace elements, such as germanium, titanium, etc. </p
