Natural dyeing refers to the process of using natural dyes as dyeing materials, without or with minimal use of chemical additives during the dyeing process, and using natural dyes obtained from nature, using natural soil, minerals, and biological enzymes as natural mordant to dye products. It is also known as "plant dyeing" or "plant dyeing". It includes plant based dyes (such as indigo), animal based dyes (such as lac), and mineral based dyes (such as cinnabar), with plant based dyes being the most commonly used and the most perse types of materials available

Using dyes

In the long history, humans have obtained natural colors from natural materials. Natural dyes include mineral, animal, and plant dyes, with plant dyes as the bulk.

. The "Six Classics of the Tang Dynasty" states that "dyeing is mostly made of grass and trees, some of which are flowers and leaves, some of which are stems and solid, some of which are root bark, some of which are soil, and some of which are collected at different times." Natural dyes used for dyeing are generally plant-based dyes, such as trees, herbaceous plants, flowers, fruits, traditional Chinese medicine, tea, etc. Mineral dyes, such as cinnabar, ochre, stone blue, etc., animal dyes, such as cochineal insects, lac insects, cuttlefish juice, etc. Plant dyes are the most common natural dyes and have the most common uses. Bark, roots, branches and leaves, fruits, and shells; Flowers, dried flowers, leaves, and fruits of flowers; The skin, fruit, and juice of many fruits can be used for coloring. The rich natural ecology contains infinite color resources. Research and experiments have shown that there are at least a thousand types of dyes that can be applied, some of which have been applied by ancestors, and many have not yet been developed

Meaning

Positive significance

1. Historical and cultural significance: Natural coloring has accumulated many experiences and wisdom of predecessors, and these excellent color cultures should be given new meaning so as not to cause cultural fragmentation.

2. Environmental significance: The characteristic of natural dyeing lies in the sustainable utilization of natural resources, while avoiding serious pollution caused by chemical dyes

3. Aesthetic significance: Natural dyeing can not only produce various bright and high chromatic colors, but also a large number of delicate intermediate colors. Elegant colors are the most generous gift of nature and are worth savoring carefully. Moreover, through different repetitions and color schemes, a richer and more meaningful color hierarchy can be achieved

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China