Large-leaf tea vehicle-mounted sachet and preparation method thereof

Abstract

The invention discloses a big-leaf tea vehicle-mounted sachet which comprises a filler and a sachet sleeve, the filler is Hainan big-leaf tea, and the sachet sleeve is made of a Riebrocade material. Hainan big-leaf tea is treated by adopting a white tea processing technology, and through natural withering and low-temperature baking treatment, the original volatile nutritional ingredients of the tea leaves are well reserved, and the fragrance of the tea is stimulated. Through volatilization and absorption of aromatic substances in the filler Hainan big-leaf tea, refreshing and consciousness restoring can be achieved, driving fatigue can be relieved, and by providing pleasant smell, the riding comfort in a vehicle is enhanced, people are helped to relax mood, and tension and anxiety are relieved. Natural fibers are adopted in Riejin, ramie, kapok and herbaceous Jiebai cotton serve as raw materials, chemical dyes and additives are not used in the manufacturing process, the sachet is non-irritant to skin, natural, environmentally friendly and good in air permeability, air circulation in the sachet can be kept, fragrance can be persistently and evenly released, and air quality is improved; the Riejin can also absorb moisture in air, so that the service life of the sachet is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of health care products, and in particular to a vehicle-mounted sachet for large-leaf tea and a preparation method thereof. Background Art

[0002] Car sachets are a type of fragrance product designed specifically for use in cars, and are usually used to improve the air quality and atmosphere in the car. The development of car sachets stems from people's increasing attention to the comfort and odor of the car environment. The main functions of car sachets are as follows: (1) Improve the air quality in the car: by emitting fragrance, cover up or eliminate the odor in the car, making the car environment more pleasant; (2) Enhance driving comfort: Some sachets can also help reduce fatigue while driving and create a more relaxing driving experience; (3) Personalized choice: Different scents and styles can be selected according to personal preferences, thus creating a unique car atmosphere for the driver and passengers. These sachets usually cover up or reduce the odor in the car by emitting specific fragrances, while also bringing a sense of pleasure during driving. However, there are also some problems with car sachets. One of them is that the fragrance may be too strong, sometimes even causing discomfort to the driver or passengers; some cheap or low-quality sachets may have a short fragrance duration and need to be replaced frequently, which not only increases the cost of use but also may affect the user experience; in addition, some sachets may contain more chemical ingredients, which may have potential effects on the health of some people, especially for people who work or drive in the car for a long time.

[0003] At present, more and more car sachets use the theory of Chinese medicine aromatherapy. Chinese medicine aromatherapy uses spices or herbs with Chinese herbal efficacy. According to Chinese medicine theory, these spices can achieve the effect of regulating physical and mental health through aroma inhalation. Different Chinese herbal aromas have different effects, such as lavender can soothe and relax, and angelica can regulate blood and qi. These aromas can help drivers stay calm and concentrate during driving, and relieve driving stress and fatigue.

[0004] In ancient times, people have discovered that tea has a fragrant property and is widely used to improve the smell of the environment. The tea bags (tea bags) used in the tea ceremony culture are not only tools for drinking tea, but are also placed in wardrobes, drawers and other places to help remove odors with their natural aroma. The aroma emitted by the tea itself belongs to the natural plant fragrance, does not contain artificial chemical additives, is relatively safe and harmless, and has no negative impact on health. Tea has certain antibacterial and deodorizing effects, can help purify the air in the car, and reduce the growth of odors and bacteria. In addition, the active ingredient in tea, tea polyphenols, is an antioxidant substance. Studies have found that tea polyphenols have detoxification and anti-radiation effects, and can eliminate free radicals to prevent the occurrence of cancer.

[0005] Therefore, it is particularly important to effectively utilize the active ingredients of tea and develop a sachet with tea as the active ingredient to improve the in-car environment and reduce the driver's fatigue. Summary of the invention

[0006] In view of this, the present invention provides a vehicle-mounted sachet for large-leaf tea and a preparation method thereof to solve the above-mentioned problems.

[0007] The technical solution of the present invention is achieved in this way:

[0008] A vehicle-mounted sachet for large-leaf tea comprises a filler and a sachet cover; the filler is Hainan large-leaf tea.

[0009] Preferably, the weight of the Hainan large-leaf tea is 50-70 grams.

[0010] Hainan large-leaf tea is fresh leaves picked from the large-leaf tea in Wuzhishan, Hainan. Wuzhishan has an average altitude of 635m, a forest coverage rate of 91.8%, an average annual temperature of about 21°C, clean air without dust, an annual precipitation of about 2400mm, an average annual sunshine of about 2000h, and a negative oxygen ion content of 10000+ / cm 3 Shuiman Township has a tropical marine monsoon climate, with no severe cold in winter, no scorching heat in summer, fog in winter and spring, clouds in summer and autumn, abundant rainfall, rich negative oxygen ions, sufficient sunshine, and a large temperature difference between day and night, which is conducive to the accumulation of tea nutrients and is an excellent place for tea planting. The typical characteristics of Hainan large-leaf tea are that its leaves are large and the content of tea polyphenols is high, so it has a richer and more lasting aroma and taste. At the same time, due to the unique ecological environment and climatic conditions in Hainan, Hainan large-leaf tea also has a certain tropical fruit aroma, which is more unique. Hainan's light level is also a key climate influencing factor that tea in other provinces cannot reach. Its special climate and geographical advantages have created the unique quality of Hainan large-leaf tea. In addition to producing and processing high-quality black tea and green tea, its 5-6 leaves or 7-8 leaves still have strong health and health effects.

[0011] Preferably, the sachet cover is made of Li brocade.

[0012] Li brocade is a folk brocade of the Li people in Hainan Island with a long history. "Dongxi Fiber Records" states: "The Li people took colored silk from China, untied it to take out colored silk and jibei, and wove it into brocade." Li brocade is mainly made of cotton thread, supplemented by hemp thread, silk thread and gold and silver thread. Its warp is mostly made by the tie-dyeing method (i.e. tie-dyeing). The warp is woven on a tie-dyeing frame, and then the yarn is tied on the warp. After dyeing, the yarn is removed, and a pattern of blue background and white flowers appears, and then the colored weft is woven in.

[0013] Preferably, the raw materials of the Li brocade include ramie, kapok and herbal jibei cotton.

[0014] Ramie (scientific name: Boehmeria nivea (L.) Gaudich.) is a subshrub or shrub plant of the Urticaceae family. It is one of the important fiber crops in ancient China. Ramie cultivation has a long history, dating back more than 4,700 years. Its leaves are broad, green on the front and silver-gray on the back. Ramie is more adapted to temperate and subtropical climates, and its yield is higher in Hainan. Ramie roots contain the medicinal ingredient "ramie acid", which has the effects of replenishing yin, calming the fetus, treating antenatal and postpartum upset, and treating furuncles.

[0015] Ramie is made into ramie silk after soaking, beating, rubbing, boiling and drying; kapok and jibei cotton can be spun after picking, deseeding and fluffing. After the raw materials are prepared, the four processes of "spinning", "dyeing", "weaving" and "embroidery" are started. Among them, plant dyes are one of the traditional dye making methods of the Li people, and they also embody the original ecological and natural health elements.

[0016] The present invention also provides a method for preparing a vehicle-mounted sachet of large-leaf tea, comprising the following steps:

[0017] S1. Hainan large-leaf tea is processed using white tea processing technology

[0018] S1.1, picking: picking 5-6 leaves or 7-8 leaves of Hainan large-leaf tea;

[0019] S1.2, withering: the picked tea leaves are withered in a natural environment exposed to sunlight. The withering time is adjusted according to the intensity of the sun. The withering time is 36-72 hours;

[0020] S1.3 Drying: The withered tea leaves are dried by low temperature baking;

[0021] S1.4, Picking and sorting: After withering and drying, pick out the impurities;

[0022] S2. Filling: Fill the Hainan large-leaf tea processed by the white tea processing technology into the sachet sleeve made of Li brocade and seal it.

[0023] Preferably, the picking period in S1.1 is selected between Qingming and Guyu.

[0024] Preferably, the low temperature baking temperature in S1.3 is 40-50°C.

[0025] Preferably, the inclusions include tea leaves, tea stems, tea seeds and non-tea inclusions.

[0026] Preferably, the non-tea inclusions include insect bodies, feathers, bamboo chips, wood chips, leaves, weeds, grains, and mineral iron filings, sand, mud, and the like.

[0027] Preferably, the production method of the S2 Li brocade is as follows: (1) preparing ramie, kapok and herbal jibei cotton as raw materials; (2) making ramie silk through the processes of soaking, beating, rubbing, boiling and drying; spinning kapok and jibei cotton after picking, deseeding and fluffing; (3) making it through the four processes of "spinning", "dyeing", "weaving" and "embroidery".

[0028] Preferably, the method for preparing the vehicle-mounted sachet of large-leaf tea comprises the following steps:

[0029] S1. Hainan large-leaf tea is processed using white tea processing technology

[0030] S1.1. Picking: During the period from Qingming to Guyu, pick 5-6 leaves or 7-8 leaves of fresh leaves;

[0031] S1.2, withering: the picked tea leaves are dried in a natural environment exposed to sunlight to shrink naturally. The withering time is adjusted according to the intensity of the sun, and the withering time is 36-72 hours;

[0032] S1.3 Drying: The withered tea leaves are dried by low-temperature baking to maintain their natural aroma; the low-temperature baking temperature is 40-50°C;

[0033] S1.4, sorting: After withering and drying, the leaves, tea stems, tea seeds and non-tea inclusions are sorted out to ensure the softness after being loaded into the inner core;

[0034] S2. Filling: Filling Hainan large-leaf tea processed by white tea processing technology into a sachet made of Li brocade and sealing the sachet; the production method of Li brocade is as follows: (1) preparing ramie, kapok and herbal Jibei cotton as raw materials; (2) making ramie into ramie silk through soaking, beating, rubbing, boiling and drying; and spinning kapok and Jibei cotton into yarn after picking, deseeding and fluffing (3) making the sachet through four processes of "spinning", "dyeing", "weaving" and "embroidering".

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) The present invention provides a large-leaf tea vehicle sachet, which is filled with Hainan large-leaf tea. Hainan large-leaf tea is processed through the white tea processing technology, and the withering process adopts a pure sun-drying process, which makes full use of the biochemical reaction in the withering process to stimulate the aroma of the tea. The volatilization and absorption of the effective ingredients in the filler can refresh the mind and reduce driving fatigue. Hainan large-leaf tea also contains ingredients with analgesic and soothing effects, which can help relieve pain and discomfort in the neck, shoulders or head, and enhance the riding comfort in the car by providing a pleasant smell, helping people relax, relieve tension and anxiety, and benefiting people's health.

[0037] (2) The invention provides a large-leaf tea vehicle-mounted sachet, the sachet cover is Li brocade, Li brocade uses natural fibers, including ramie, kapok, and herbal jibei cotton as raw materials, and the production process does not use chemical dyes and additives, is non-irritating to the skin, and is natural and environmentally friendly. Li brocade fabric has good air permeability, can effectively emit fragrance, maintain air circulation inside the sachet, release fragrance persistently and evenly, and improve air quality; Li brocade can also absorb moisture in the air, help keep the inside of the sachet dry, and extend the service life of the sachet. DETAILED DESCRIPTION

[0038] In order to better understand the technical content of the present invention, specific embodiments are provided below to further illustrate the present invention.

[0039] Unless otherwise specified, the experimental methods used in the embodiments of the present invention are all conventional methods.

[0040] Unless otherwise specified, the materials, reagents, etc. used in the embodiments of the present invention can be obtained from commercial sources.

[0041] Example 1

[0042] A vehicle-mounted sachet for large-leaf tea comprises a filler and a sachet cover; the filler is 50 grams of Hainan large-leaf tea; the sachet cover is made of Li brocade; the raw materials of the Li brocade include ramie, kapok and herbal jibei cotton.

[0043] The method for preparing the vehicle-mounted sachet of large-leaf tea comprises the following steps:

[0044] S1. Hainan large-leaf tea is processed using white tea processing technology

[0045] S1.1. Picking: Pick 7-8 fresh leaves from Qingming to Guyu.

[0046] S1.2, withering: the picked tea leaves are dried in a natural environment exposed to sunlight to allow them to shrink naturally in the sun; the withering time is adjusted according to the intensity of the sun, and the withering time is 36 hours;

[0047] S1.3 Drying: The withered tea leaves are dried by low-temperature baking to preserve their natural aroma; the low-temperature baking temperature is 40°C;

[0048] S1.4, sorting: After withering and drying, the leaves, tea stems, tea seeds and non-tea inclusions are sorted out to ensure the softness after being loaded into the inner core;

[0049] S2. Filling: Filling Hainan large-leaf tea processed by white tea processing technology into a sachet made of Li brocade and sealing the sachet; the production method of Li brocade is as follows: (1) preparing ramie, kapok and herbal Jibei cotton as raw materials; (2) making ramie into ramie silk through soaking, beating, rubbing, boiling and drying; and spinning kapok and Jibei cotton into yarn after picking, deseeding and fluffing (3) making the sachet through four processes of "spinning", "dyeing", "weaving" and "embroidering".

[0050] Example 2

[0051] A vehicle-mounted sachet for large-leaf tea comprises a filler and a sachet cover; the filler is 66 grams of Hainan large-leaf tea; the sachet cover is made of Li brocade; the raw materials of the Li brocade include ramie, kapok and herbal jibei cotton.

[0052] The method for preparing the vehicle-mounted sachet of large-leaf tea comprises the following steps:

[0053] S1. Hainan large-leaf tea is processed using white tea processing technology

[0054] S1.1. Picking: Pick 5-6 fresh leaves from Qingming to Guyu.

[0055] S1.2, withering: the picked tea leaves are dried in a natural environment exposed to sunlight to shrink naturally. The withering time is adjusted according to the intensity of the sun, and the withering time is 72 hours;

[0056] S1.3 Drying: The withered tea leaves are dried by low-temperature baking to preserve their natural aroma; the low-temperature baking temperature is 45°C;

[0057] S1.4, sorting: After withering and drying, the leaves, tea stems, tea seeds and non-tea inclusions are sorted out to ensure the softness after being loaded into the inner core;

[0058] S2. Filling: Filling Hainan large-leaf tea processed by white tea processing technology into a sachet made of Li brocade and sealing the sachet; the production method of Li brocade is as follows: (1) preparing ramie, kapok and herbal Jibei cotton as raw materials; (2) making ramie into ramie silk through soaking, beating, rubbing, boiling and drying; and spinning kapok and Jibei cotton into yarn after picking, deseeding and fluffing (3) making the sachet through four processes of "spinning", "dyeing", "weaving" and "embroidering".

[0059] Example 3

[0060] A vehicle-mounted sachet for large-leaf tea comprises a filler and a sachet cover; the filler is 70 grams of Hainan large-leaf tea; the sachet cover is made of Li brocade; the raw materials of the Li brocade include ramie, kapok and herbal jibei cotton.

[0061] The method for preparing the vehicle-mounted sachet of large-leaf tea comprises the following steps:

[0062] S1. Hainan large-leaf tea is processed using white tea processing technology

[0063] S1.1. Picking: Pick 5-6 fresh leaves from Qingming to Guyu.

[0064] S1.2, withering: the picked tea leaves are dried in a natural environment exposed to sunlight to allow them to shrink naturally in the sun; the withering time is adjusted according to the intensity of the sun, and the withering time is 48 hours;

[0065] S1.3 Drying: The withered tea leaves are dried by low-temperature baking to maintain their natural aroma; the low-temperature baking temperature is 50°C;

[0066] S1.4, sorting: After withering and drying, the leaves, tea stems, tea seeds and non-tea inclusions are sorted out to ensure the softness after being loaded into the inner core;

[0067] S2. Filling: Filling Hainan large-leaf tea processed by white tea processing technology into a sachet made of Li brocade and sealing the sachet; the production method of Li brocade is as follows: (1) preparing ramie, kapok and herbal Jibei cotton as raw materials; (2) making ramie into ramie silk through soaking, beating, rubbing, boiling and drying; and spinning kapok and Jibei cotton into yarn after picking, deseeding and fluffing (3) making the sachet through four processes of "spinning", "dyeing", "weaving" and "embroidering".

[0068] Comparative Example 1

[0069] This example provides a large-leaf tea vehicle-mounted sachet, the ingredients of which are the same as those in Example 2, except that the baking temperature in S1.3 of the preparation method of the large-leaf tea vehicle-mounted sachet in this example is 100°C.

[0070] Comparative Example 2

[0071] This example provides a vehicle-mounted sachet for large-leaf tea, which differs from Example 2 in that the material of the sachet cover in this example replaces Li brocade with non-woven fabric.

[0072] Comparative Example 3

[0073] This example provides a large-leaf tea vehicle-mounted sachet, which is different from Example 2 in that the filling of the sachet in this example replaces Hainan large-leaf tea with Yunnan large-leaf tea. The preparation method of the large-leaf tea vehicle-mounted sachet is the same as that of Example 2.

[0074] Comparative Example 4

[0075] This example provides a large-leaf tea vehicle-mounted sachet, which is different from Example 2 in that the filling of the sachet in this example replaces Hainan large-leaf tea with Guangxi large-leaf tea. The preparation method of the large-leaf tea vehicle-mounted sachet is the same as that of Example 2.

[0076] Comparative Example 5

[0077] This example provides a large-leaf tea vehicle-mounted sachet, which is different from Example 2 in that the filling of the sachet in this example replaces Hainan large-leaf tea with Guangdong large-leaf tea. The preparation method of the large-leaf tea vehicle-mounted sachet is the same as that of Example 2.

[0078] Comparative Example 6

[0079] This example provides a large-leaf tea vehicle-mounted sachet, which is different from Example 2 in that the filling of the sachet in this example replaces Hainan large-leaf tea with Guiyang large-leaf tea. The preparation method of the large-leaf tea vehicle-mounted sachet is the same as that of Example 2.

[0080] Test Example 1

[0081] The Hainan large-leaf tea treated by the white tea processing technology in Example 2 and the tea treated by the white tea processing technology in Comparative Example 1 and Comparative Examples 3-6 were tested for aroma components by headspace solid phase microextraction gas chromatography-mass spectrometry, wherein the main aroma components are β-linalool, methyl salicylate, geraniol, etc. The results are shown in Table 1 below:

[0082] Table 1 Aroma types and relative content (%)

[0083] Group β-Linalool(%) Methyl salicylate(%) Geraniol(%) Example 2 20.8 23.2 16.5 Comparative Example 1 17.6 21.3 14.2 Comparative Example 3 15.9 20.1 14.9 Comparative Example 4 18.2 19.4 15.1 Comparative Example 5 16.4 19.2 13.9 Comparative Example 6 18.9 20.6 12.7

[0084] As can be seen from Table 1, the Hainan large-leaf tea of ​​the present invention has more aroma component content than large-leaf tea varieties from other origins. The Hainan large-leaf tea undergoes white tea processing technology, and the withering process adopts a pure sun-drying process, which fully utilizes the biochemical reaction in the withering process to stimulate the aroma of the tea, and maintains its natural aroma through low-temperature baking.

[0085] Test Example 2

[0086] The influence of the large-leaf tea vehicle-mounted sachet obtained by test example 1-3 and comparative example 1-6 on the sleep latency and sleep time induced by sodium pentobarbital in mice.Select SPF grade Kunming male mice and randomly divide them into 10 groups, 10 in each group.The large-leaf tea vehicle-mounted sachet obtained by embodiment 1-3 and comparative example 1-6 is suspended in the center of mouse cage, and the sachet specification is 6cm*5cm*0.6cm. The blank control group is not provided with a sachet. After normal feeding for 15d, each group of mice is intraperitoneally injected with pentobarbital solution (40mg / kg).Record injection time (TR), after injection, mice are placed in a feeding box separately, record the moment when the righting reflex of each mouse disappears in 30min and reaches 1min, represent mice falling asleep (TS), then record the moment when the righting reflex of each mouse recovers, represent mice waking up (TW), calculate the sleep latency (TS-TR) and sleep time (TW-TS) of each mouse, and the result is as shown in table 2.

[0087] Table 2

[0088] Group Sleep latency time / min Sleep time / min Blank control group 5.1±1.4 28.3±1.5 Example 1 <![CDATA[7.6±1.2 * ]]> <![CDATA[13.9±1.4 * ]]> Example 2 <![CDATA[7.9±1.1 * ]]> <![CDATA[13.5±1.3 * ]]> Example 3 <![CDATA[8.0±1.6 * ]]> <![CDATA[13.4±1.5 * ]]> Comparative Example 1 <![CDATA[6.5±1.2 ** ]]> <![CDATA[18.1±1.2 ** ]]> Comparative Example 2 <![CDATA[7.0±1.3 ** ]]> <![CDATA[15.0±1.1 ** ]]> Comparative Example 3 <![CDATA[6.2±1.2 ** ]]> <![CDATA[19.6±1.4 ** ]]> Comparative Example 4 <![CDATA[6.9±1.3 ** ]]> <![CDATA[16.7±1.2 ** ]]> Comparative Example 5 <![CDATA[6.6±1.5 ** ]]> <![CDATA[18.2±1.3 ** ]]> Comparative Example 6 <![CDATA[6.8±1.4 ** ]]> <![CDATA[17.5±1.2 ** ]]>

[0089] Note: Compared with the blank control group, * P<0.05; compared with Example 2 group, ** P<0.05.

[0090] As can be seen from Table 1, the large-leaf tea vehicle-mounted sachets prepared in Examples 1-3 of the present invention can significantly prolong the sleep latency induced by pentobarbital and shorten the sleep time induced by pentobarbital, indicating that it has a certain refreshing effect on mice.

[0091] The results of Comparative Example 1 and Example 2 show that low-temperature baking can better retain the original volatile nutrients of tea leaves, and baking at a higher temperature will cause the volatile components in tea leaves to volatilize, and some nutrients will be destroyed or lost, thereby affecting the efficacy of tea leaves. Comparative Example 2 replaces Li brocade with non-woven fabrics, and the refreshing effect is weakened. Li brocade uses natural fibers, and is made of ramie, kapok, and herbal jibei cotton as raw materials. It is natural and environmentally friendly, has good air permeability, can effectively emit fragrance, maintain air circulation inside the sachet, and make the fragrance lasting and evenly released, and can absorb moisture in the air, which helps to keep the sachet dry. Comparative Examples 3-6 use large-leaf tea from other origins, and their refreshing effects are weakened to a certain extent. This is because the unique ecological environment and climatic conditions in Hainan are conducive to the accumulation of tea nutrients.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle-mounted sachet for large-leaf tea, comprising a filler and a sachet cover, characterized in that: The filler is Hainan large-leaf tea.

2. The vehicle-mounted sachet for large-leaf tea according to claim 1, characterized in that: The weight of the Hainan large-leaf tea is 50-70 grams.

3. The vehicle-mounted sachet for large-leaf tea according to claim 1, characterized in that: The material of the sachet cover is Li brocade.

4. The vehicle-mounted sachet for large-leaf tea according to claim 3, characterized in that: The raw materials of Li brocade include ramie, kapok and herbal jibei cotton.

5. The method for preparing a vehicle-mounted sachet of large-leaf tea according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Hainan large-leaf tea is processed using white tea processing technology S1.1, picking: picking 5-6 leaves or 7-8 leaves of Hainan large-leaf tea; S1.2, withering: the picked tea leaves are withered in a natural environment exposed to sunlight. The withering time is adjusted according to the intensity of the sun. The withering time is 36-72 hours; S1.3 Drying: The withered tea leaves are dried by low temperature baking; S1.4, Picking and sorting: After withering and drying, pick out the impurities; S2. Filling: Fill the Hainan large-leaf tea processed by the white tea processing technology into the sachet sleeve made of Li brocade and seal it.

6. The method for preparing a vehicle-mounted sachet of large-leaf tea according to claim 5, characterized in that: The picking period of S1.1 is selected between Qingming and Guyu.

7. The method for preparing a vehicle-mounted sachet of large-leaf tea according to claim 5, characterized in that: The low temperature baking temperature in S1.3 is 40-50°C.

8. The method for preparing a vehicle-mounted sachet of large-leaf tea according to claim 5, characterized in that: The production method of S2 Li brocade is as follows: (1) preparing ramie, kapok and herbal jibei cotton as raw materials; (2) making ramie silk through soaking, beating, rubbing, boiling and drying; spinning kapok and jibei cotton after picking, deseeding and fluffing; (3) making it through four processes of "spinning", "dyeing", "weaving" and "embroidery".