A wool fabric printing and dyeing method and wool printed and dyed fabric

Abstract

The invention discloses a wool fabric printing and dyeing method, comprising the following steps: soaking eucalyptus leaves; mordant dyeing the soaked eucalyptus leaves to obtain treated eucalyptus leaves; placing the treated eucalyptus leaves on the prepared wool fabric to be printed and dyed, and then rolling and fixing; steam heating and transferring the rolled and fixed wool fabric for 3h to 8h, with the steam temperature being 90°C to 110°C, to obtain the wool printed and dyed fabric. The wool fabric printing and dyeing method can replace chemical dyes to dye the wool fabric by using eucalyptus leaves as natural plant pigments, and can avoid direct contact between the wool fabric and water by optimizing the processing technology, effectively avoiding the problem of wool felt shrinkage, thereby eliminating the processes of shrinkage-proof pretreatment, washing, drying, etc., and has the characteristics of clear color development, deep chroma, firm coloring, and green environmental protection.

Description

Technical Field

[0001] The invention belongs to the technical field of wool fabric printing and dyeing technology, and in particular relates to a wool fabric printing and dyeing method and wool printed and dyed fabric. Background Art

[0002] With the rapid development of the domestic economy, the living standards have been significantly improved. People are paying more and more attention to health and pursuing products of original ecology and natural materials. Natural materials such as cotton, linen, silk, wool and natural plant dyes are becoming more and more popular.

[0003] Consumers who value the quality of life have begun to pay attention to wool textiles because of their excellent comfort and warmth. However, wool fabrics have certain felting properties, so wool printing needs to go through shrinkage-proof pretreatment, washing, drying, color fixing and other processes. The existing shrinkage-proof chlorination treatment will turn the color of wool fabrics yellow, thus affecting the printing quality, and the chlorination treatment will produce harmful chlorides that cause environmental pollution.

[0004] In the prior art, dyes used in printing production are generally synthesized by chemical processing, which makes consumers worry about the health and safety of the products, and the discharge of chemical dyes causes certain pollution to the ecological environment. Plant pigments have good compatibility with the environment, are biodegradable, non-toxic and harmless, and even have special health care effects on the human body. However, plant pigments have the problems of weak coloring, easy fading or poor coloring.

[0005] Eucalyptus leaves are the leaves of Eucalyptus globulus, a plant of the Myrtaceae family. Young leaves are opposite, ovate, heart-shaped at the base, sessile, and have white powder; mature leaves are leathery, lanceolate, sickle-shaped, and have glandular dots on both sides. It can be used as a medicine for various inflammations and fevers. For patients with fever, eucalyptus oil can quickly reduce the temperature and fever because of its strong bactericidal power. It also has the effect of reducing the viscosity of mucus in the body. Therefore, it can be used for physical treatment of tuberculosis, bronchitis, diphtheria, etc., and can relieve inflammation and make the mucous membrane comfortable. Summary of the invention

[0006] The purpose of the present invention is to provide a wool fabric printing and dyeing method, which can use natural plant pigments instead of chemical dyes to dye the wool fabric, and can avoid direct contact between the wool fabric and water, thereby effectively avoiding the problem of wool felt shrinkage.

[0007] The above-mentioned purpose is achieved by the following technical solutions.

[0008] In a first aspect, the present invention provides a method for printing and dyeing wool fabrics, the method comprising the following steps:

[0009] Soak the eucalyptus leaves;

[0010] subjecting the soaked eucalyptus leaves to mordant treatment to obtain treated eucalyptus leaves;

[0011] Place the treated eucalyptus leaves on the prepared wool fabric to be printed and dyed, and then roll and tie them to fix;

[0012] The rolled and fixed wool fabric is subjected to steam heating transfer for 3h to 8h, with the steam temperature being 90°C to 110°C, to obtain the wool printed and dyed fabric.

[0013] In some embodiments, the eucalyptus leaves are one or a combination of Eucalyptus tereticornis Smith and Eucalyptus cinerea; wherein the scientific name of Eucalyptus tereticornis Smith is Eucalyptus tereticornis Smith, and the scientific name of Eucalyptus cinerea is Eucalyptus cinerea.

[0014] In some embodiments, the steam temperature is 95°C to 105°C.

[0015] In some embodiments, the steam temperature is 98°C to 102°C.

[0016] In some embodiments, the steam heating transfer time is 3.5 hours to 5 hours.

[0017] In some embodiments, the step of subjecting the soaked eucalyptus leaves to mordant treatment is as follows:

[0018] The soaked eucalyptus leaves are placed in water at 95°C to 105°C, and FeSO4 is added and soaked for 20min to 40min to obtain treated eucalyptus leaves, wherein the concentration of FeSO4 is 1g / L to 3g / L.

[0019] In some of the embodiments, the concentration of FeSO4 is 1.5 g / L to 2.5 g / L.

[0020] In some of the embodiments, the step of soaking the eucalyptus leaves is performed by soaking the eucalyptus leaves in water at 75°C to 85°C, with the water level completely covering the plants, and the soaking time is 20min to 40min.

[0021] In some embodiments, the soaking temperature of the eucalyptus leaves is 78° C. to 82° C., and the soaking time is 25 min to 35 min.

[0022] In a second aspect, the present invention provides a wool printed and dyed fabric, wherein the wool printed and dyed fabric is prepared by the wool printed and dyed method as described above.

[0023] In the present invention, it is found that eucalyptus leaves can be used as natural plant pigments to replace chemical dyes for dyeing wool fabrics, and by optimizing the processing technology, the wool fabrics can be prevented from directly contacting with water by controlling the printing and dyeing method, printing and dyeing temperature and printing and dyeing time of the wool fabrics, and the problem of wool felt shrinkage can be effectively avoided, thereby eliminating the steps of anti-shrinkage pretreatment, water washing, drying and the like, and the pigment of the eucalyptus leaves can be stably combined with the wool fabric. The pigment of the eucalyptus leaves in the wool fabric has clear color development, deep chroma, firm coloring, is not easy to fade, and is green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a printing effect diagram of the wool printed and dyed fabric according to Example 1 of the present invention;

[0025] Figure 2 This is a printing effect diagram of the wool printed and dyed fabric according to Example 2 of the present invention;

[0026] Figure 3 This is a printing effect diagram of the wool printed and dyed fabric according to Example 3 of the present invention;

[0027] Figure 4 This is a printing effect diagram of the wool printed and dyed fabric according to Example 4 of the present invention;

[0028] Figure 5 This is a printing effect diagram of the wool printed and dyed fabric according to Example 5 of the present invention;

[0029] Figure 6 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 1 of the present invention;

[0030] Figure 7 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 2 of the present invention;

[0031] Figure 8 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 3 of the present invention;

[0032] Fig. 9 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 4 of the present invention;

[0033] Fig.10 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 5 of the present invention;

[0034] Fig.11 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 6 of the present invention;

[0035] Fig.12 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 7 of the present invention;

[0036] Fig.13 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 8 of the present invention;

[0037] Fig.14 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 9 of the present invention;

[0038] Fig.15 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 10 of the present invention;

[0039] Fig.16 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 11 of the present invention;

[0040] Fig.17 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 12 of the present invention;

[0041] Fig.18 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 13 of the present invention;

[0042] Fig.19 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 14 of the present invention;

[0043] Fig. 20 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 15 of the present invention;

[0044] Fig.21 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 16 of the present invention;

[0045] Fig. 22 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 17 of the present invention;

[0046] Fig.23 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 18 of the present invention;

[0047] Fig.24 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 19 of the present invention;

[0048] Fig.25 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 20 of the present invention;

[0049] Fig.26 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 21 of the present invention;

[0050] Fig. 27 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 22 of the present invention;

[0051] Fig.28 This is a printing effect diagram of the wool printed and dyed fabric of Comparative Example 23 of the present invention;

[0052] Fig.29 This is a printing effect diagram of the wool printed and dyed fabric after soaping according to Example 1 of the present invention;

[0053] Fig.30 This is a printing effect diagram of the wool printed and dyed fabric after soaping according to Example 2 of the present invention;

[0054] Fig.31 This is a printing effect diagram of the wool printed and dyed fabric after soaping according to Example 3 of the present invention;

[0055] Fig.32 This is a printing effect diagram of the wool printed and dyed fabric after soaping according to Example 4 of the present invention;

[0056] Fig.33 This is a printing effect diagram of the wool printed and dyed fabric of Example 5 of the present invention after soaping. DETAILED DESCRIPTION

[0057] In order to facilitate the understanding of the present invention, the present invention will be described more fully below. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0058] The experimental methods in the following examples without specifying specific conditions are usually carried out under conventional conditions or conditions recommended by the manufacturers. The various commonly used chemical reagents used in the examples are all commercially available products.

[0059] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more of the related listed items.

[0060] The present invention is further described below with reference to the embodiments.

[0061] Example 1

[0062] The preparation method of the wool printed and dyed fabric provided in this embodiment comprises the following steps:

[0063] Step (1), fabric preparation: Lay 8 meters of wool fabric flat on the table.

[0064] Step (2), plant soaking treatment: soak the Eucalyptus ulmoides leaves and Eucalyptus rotundifolia leaves in 80° C. hot water, with the water level completely covering the plants, for 30 minutes.

[0065] Step (3), plant mordant treatment: soak the soaked eucalyptus leaves and eucalyptus globulus leaves in 100°C hot water, with the water level completely covering the plants, add FeSO4 (concentration 2 g / L) into the hot water and soak for 30 minutes to obtain the treated eucalyptus leaves and eucalyptus globulus leaves.

[0066] Step (4), placing plants: placing the treated Eucalyptus ulmoides leaves and Eucalyptus globulus leaves on the wool fabric prepared in step (1).

[0067] Step (5), fabric rolling: using a high temperature resistant plastic water pipe as an axis, roll up the wool fabric on which the eucalyptus leaves and eucalyptus globulus leaves have been placed in step (4), and then roll and fix it with a cloth strip to prevent it from spreading.

[0068] Step (6), high temperature transfer: the rolled and fixed wool fabric is placed in a piece dyeing machine and steam heated to 100° C. for 3.5 hours to obtain a wool printed and dyed fabric.

[0069] Example 2

[0070] The preparation method of the wool printed and dyed fabric provided in this embodiment is different from that in Embodiment 1 in that the wool fabric is printed and dyed using Eucalyptus globulus leaves, and specifically comprises the following steps:

[0071] Step (1), fabric preparation: Lay 8 meters of wool fabric flat on the table.

[0072] Step (2), plant soaking treatment: soak the Eucalyptus rotundifolia leaves in 80° C. hot water, with the water level completely covering the plants, for 30 minutes.

[0073] Step (3), plant mordant treatment: soak the soaked Eucalyptus globulus leaves in 100°C hot water, with the water level completely covering the plants, add FeSO4 (concentration 2 g / L) into the hot water and soak for 30 minutes to obtain the treated Eucalyptus globulus leaves.

[0074] Step (4), placing plants: placing the treated Eucalyptus globulus leaves on the wool fabric prepared in step (1).

[0075] Step (5), fabric rolling: using a high temperature resistant plastic water pipe as an axis, roll up the wool fabric on which the eucalyptus leaves have been placed in step (4), and then roll and fix it with a cloth strip to prevent it from spreading.

[0076] Step (6), high temperature transfer: the rolled and fixed wool fabric is placed in a piece dyeing machine and steam heated to 100° C. for 3.5 hours to obtain a wool printed and dyed fabric.

[0077] Example 3

[0078] The preparation method of wool printed and dyed fabric provided in this embodiment is different from that in Embodiment 1 in that the wool fabric is printed and dyed using Eucalyptus tenuifolia leaves, and specifically comprises the following steps:

[0079] Step (1), fabric preparation: Lay 8 meters of wool fabric flat on the table.

[0080] Step (2), plant soaking treatment: soak the Eucalyptus tenuifolia leaves in 80°C hot water, with the water level completely covering the plants, for 30 minutes.

[0081] Step (3), plant mordant treatment: soak the soaked Eucalyptus ulmoides leaves in 100°C hot water until the water level completely covers the plants, add FeSO4 (concentration 2 g / L) into the hot water and soak for 30 minutes to obtain the treated Eucalyptus ulmoides leaves.

[0082] Step (4), placing plants: placing the treated Eucalyptus ulmoides leaves on the wool fabric prepared in step (1).

[0083] Step (5), fabric rolling: using the high temperature resistant plastic water pipe as an axis, roll up the wool fabric on which the fine-leaved eucalyptus leaves have been placed in step (4), and then roll and fix it with a cloth strip to prevent it from spreading.

[0084] Step (6), high temperature transfer: the rolled and fixed wool fabric is placed in a piece dyeing machine and steam heated to 100° C. for 3.5 hours to obtain a wool printed and dyed fabric.

[0085] Example 4

[0086] The preparation method of the wool printed and dyed fabric provided in this embodiment is different from that in Embodiment 1 in that the present embodiment adopts wool knitted cut fabric, and specifically comprises the following steps:

[0087] Step (1), fabric preparation: lay the wool knitted fabric piece flat on the table.

[0088] Step (2), plant soaking treatment: soak the Eucalyptus ulmoides leaves and Eucalyptus rotundifolia leaves in 80° C. hot water, with the water level completely covering the plants, for 30 minutes.

[0089] Step (3), plant mordant treatment: soak the soaked eucalyptus leaves and eucalyptus globulus leaves in 100°C hot water, with the water level completely covering the plants, add FeSO4 (concentration 2 g / L) into the hot water and soak for 30 minutes to obtain the treated eucalyptus leaves and eucalyptus globulus leaves.

[0090] Step (4), placing plants: placing the treated Eucalyptus ulmoides leaves and Eucalyptus globulus leaves on the wool fabric prepared in step (1).

[0091] Step (5), fabric rolling: using a high temperature resistant plastic water pipe as an axis, roll up the wool knitted fabric pieces of eucalyptus slender leaves and eucalyptus rubra leaves that have been placed in step (4), and then roll and fix them with cloth strips to prevent them from spreading.

[0092] Step (6), high temperature transfer: the rolled and fixed wool knitted fabric pieces are placed in a piece dyeing machine and steam heated to 100° C. for 3.5 hours to obtain wool printed and dyed fabrics.

[0093] Example 5

[0094] The preparation method of the wool printed and dyed fabric provided in this embodiment is different from that in Embodiment 1 in that the length of the wool fabric is different and the type of eucalyptus leaves is different, and the method specifically comprises the following steps:

[0095] Step (1), fabric preparation: Lay 12 meters of wool fabric flat on the table.

[0096] Step (2), plant soaking treatment: soak the Eucalyptus ulmoides leaves and Eucalyptus rotundifolia leaves in 80° C. hot water, with the water level completely covering the plants, for 30 minutes.

[0097] Step (3), plant mordant treatment: soak the soaked eucalyptus leaves and eucalyptus globulus leaves in 100°C hot water, with the water level completely covering the plants, add FeSO4 (concentration 2 g / L) into the hot water and soak for 30 minutes to obtain the treated eucalyptus leaves and eucalyptus globulus leaves.

[0098] Step (4), placing plants: placing the treated Eucalyptus ulmoides leaves and Eucalyptus globulus leaves on the wool fabric prepared in step (1).

[0099] Step (5), fabric rolling: using a high temperature resistant plastic water pipe as an axis, roll up the wool fabric on which the eucalyptus leaves and eucalyptus globulus leaves have been placed in step (4), and then roll and fix it with a cloth strip to prevent it from spreading.

[0100] Step (6), high temperature transfer: the rolled and fixed wool fabric is placed in a piece dyeing machine and steam heated to 100° C. for 3.5 hours to obtain a wool printed and dyed fabric.

[0101] Comparative Example 1

[0102] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the steam in step (6) is heated to 60° C., and the other conditions are the same as those in Example 1.

[0103] Comparative Example 2

[0104] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the steam in step (6) is heated to 80° C., and the other conditions are the same as those in Example 1.

[0105] Comparative Example 3

[0106] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 4 in that the steam in step (6) is heated to 80° C., and the other conditions are the same as those of Example 4.

[0107] Comparative Example 4

[0108] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 4 in that the steam in step (6) is heated to 120° C., and the other conditions are the same as those in Example 1.

[0109] Comparative Example 5

[0110] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 2 hours, and the other conditions are the same as those in Example 5.

[0111] Comparative Example 6

[0112] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 2.5 h, and the other conditions are the same as those in Example 5.

[0113] Comparative Example 7

[0114] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 3 hours, and the other conditions are the same as those in Example 5.

[0115] Comparative Example 8

[0116] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 4 hours, and the other conditions are the same as those in Example 5.

[0117] Comparative Example 9

[0118] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 4.5 h, and the other conditions are the same as those in Example 5.

[0119] Comparative Example 10

[0120] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 5 in that the steam heating time in step (6) is 5 hours, and the other conditions are the same as those in Example 5.

[0121] Comparative Example 11

[0122] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that cotton fabric is used instead of wool fabric in step (1), and the other conditions are the same as those of Example 1.

[0123] Comparative Example 12

[0124] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that linen fabric is used instead of wool fabric in step (1), and the other conditions are the same as those of Example 1.

[0125] Comparative Example 13

[0126] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that silk fabric is used instead of wool fabric in step (1), and the other conditions are the same as those of Example 1.

[0127] Comparative Example 14

[0128] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that chemical fiber fabric is used instead of wool fabric in step (1), and the other conditions are the same as those of Example 1.

[0129] Comparative Example 15

[0130] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that in step (2), gardenia leaves and agarwood leaves are used instead of eucalyptus leaves and eucalyptus globulus leaves, and the other conditions are the same as those of Example 1.

[0131] Comparative Example 16

[0132] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the gardenia leaves are used instead of the eucalyptus leaves, and the other conditions are the same as those of Example 1.

[0133] Comparative Example 17

[0134] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the Aquilaria sinensis leaves are used instead of the Eucalyptus eucalyptus leaves, and the other conditions are the same as those of Example 1.

[0135] Comparative Example 18

[0136] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the gardenia leaves are used instead of the eucalyptus leaves, and the other conditions are the same as those of Example 1.

[0137] Comparative Example 19

[0138] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 1 in that the Aquilaria sinensis leaves are used instead of the Eucalyptus tenuifolia leaves, and the other conditions are the same as those of Example 1.

[0139] Comparative Example 20

[0140] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 2 in that the gardenia leaves are used instead of the eucalyptus leaves, and the other conditions are the same as those of Example 2.

[0141] Comparative Example 21

[0142] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 2 in that the Aquilaria sinensis leaves are used instead of the Eucalyptus eucalyptus leaves, and the other conditions are the same as those of Example 2.

[0143] Comparative Example 22

[0144] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 3 in that the gardenia leaves are used instead of the eucalyptus leaves, and the other conditions are the same as those of Example 3.

[0145] Comparative Example 23

[0146] The preparation method of the wool printed and dyed fabric provided in this comparative example is different from that of Example 2 in that the Aquilaria sinensis leaves are used instead of the Eucalyptus tenuifolia leaves, and the other conditions are the same as those of Example 3.

[0147] The color rendering degree and outline fineness of the plant pigments of the wool printed and dyed fabrics obtained in the above Examples 1 to 5 and Comparative Examples 1 to 23 are shown in Table 1 below. The printing effects are as follows: Figure 1-Figure 28 As shown; among them, plant pigment color rendering: very good > good > better > average > poor > bad > very poor; outline fineness: very good > good > better > average > poor > bad > very poor.

[0148] The color fastness to soaping and color fastness to light of the wool printed and dyed fabrics obtained in the above Examples 1-5 were tested. The results are shown in Table 2 below. The printing effect of the wool printed and dyed fabrics after soaping is as follows: Figure 29-Figure 33 shown.

[0149] Color fastness to soap washing: tested according to Q / JX 3-2016 "Plant-dyed woven garments";

[0150] Color fastness to light (sunlight): tested according to Q / JX 3-2016 "Plant-dyed woven garments".

[0151] Table 1 Color rendering, outline fineness and printing effect of plant pigments on wool dyed fabrics

[0152]

[0153]

[0154]

[0155]

[0156] From Table 1 and Figure 1-Figure 28 The results can be seen in:

[0157] The wool printed and dyed fabrics prepared by Examples 1-5 all have good pigment color rendering and outline fineness, and excellent printing effect. Compared with Example 1, the steam temperatures of Comparative Examples 1, 2 and 4 are 60°C, 80°C and 120°C respectively, and the pigment color rendering, outline fineness and printing effect of the wool printed and dyed fabrics obtained by Comparative Examples 1, 2 and 4 are all worse than those of Example 1; compared with Example 4, the steam temperature of Comparative Example 3 is 80°C, and the pigment color rendering, outline fineness and printing effect of the wool printed and dyed fabrics obtained by Comparative Example 3 are also worse than those of Example 4. Compared with Comparative Examples 5-10, it can be seen that the pigment color rendering, outline fineness and printing effect of the high-temperature transfer time of less than 3h in Example 5 are not good.

[0158] Compared with Example 1, Comparative Examples 11-14 used fabrics made of other materials instead of wool printed fabrics, resulting in that the obtained pigment color rendering, contour fineness and printing effect were all inferior to those of Example 1.

[0159] Compared with Example 1, Comparative Examples 15-19, Comparative Examples 20-21, and Comparative Examples 22-23, respectively, compared with Example 3, different plant leaves were used to replace Eucalyptus ulmoides and Eucalyptus eucalyptus leaves, and the pigment color rendering, outline fineness, and printing effect were not good. Therefore, Eucalyptus ulmoides and Eucalyptus eucalyptus leaves are excellent color-rendering plants.

[0160] As can be seen from the above, the wool printed and dyed fabric of the present invention can replace chemical dyes to dye the wool fabric by using eucalyptus roundleaf eucalyptus leaves and eucalyptus fine leaves as natural plant pigments, and by optimizing the processing technology, the pigments of eucalyptus roundleaf eucalyptus leaves and eucalyptus fine leaves can have excellent pigment color rendering, outline fineness and printing effect in the wool fabric.

[0161] Table 2 Color fastness to washing and light of wool printed and dyed fabrics

[0162]

[0163]

[0164] From Table 2 and Figure 29-Figure 33It can be seen that the color fastness to washing with soap of the wool printed and dyed fabrics prepared by Examples 1-5 can reach level 4-5, and the color fastness to light can reach level 3-4. Therefore, the wool printed and dyed fabrics prepared by Examples 1-5 have good color fastness to washing with soap and color fastness to light, and are firmly colored and not easy to fade.

[0165] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0166] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for printing and dyeing wool fabric, characterized in that: The printing and dyeing method of the wool fabric comprises the following steps: Soak eucalyptus leaves in water; subjecting the soaked eucalyptus leaves to mordant treatment to obtain treated eucalyptus leaves; Place the treated eucalyptus leaves on the prepared wool fabric to be printed and dyed, and then roll and tie them to fix; The rolled and fixed wool fabric is subjected to steam heating transfer for 3.0h~5.0h, and the steam temperature is 98℃~102℃ to obtain the wool dyed fabric; the eucalyptus leaves are one or a combination of fine-leaved eucalyptus leaves and round-leaved eucalyptus leaves.

2. The method for printing and dyeing wool fabric according to claim 1, characterized in that: The steam temperature is 100°C.

3. The method for printing and dyeing wool fabric according to claim 1, characterized in that: The time for steam heating transfer is 3.5h~5h.

4. The method for printing and dyeing wool fabric according to claim 3, characterized in that: The steam heating transfer time is 3.5h.

5. The method for printing and dyeing wool fabric according to claim 3, characterized in that: The steam heating transfer time is 4h or 5h.

6. The method for dyeing wool fabric according to claim 1, characterized in that: The steps of mordant treatment of the soaked eucalyptus leaves are as follows: The soaked eucalyptus leaves are placed in water at 95°C to 105°C, and FeSO4 is added and soaked for 20min to 40min to obtain treated eucalyptus leaves, wherein the concentration of FeSO4 is 1g / L to 3g / L.

7. The method for dyeing wool fabric according to claim 6, characterized in that: The concentration of FeSO4 is 1.5g / L~2.5g / L.

8. The method for printing and dyeing wool fabric according to claim 1, characterized in that: In the step of soaking the eucalyptus leaves, the eucalyptus leaves are soaked in water at 75° C. to 85° C. for 20 min to 40 min.

9. The method for printing and dyeing wool fabric according to claim 8, characterized in that: The soaking temperature of eucalyptus leaves is 78℃~82℃, and the soaking time is 25min~35min.

10. A woolen printed and dyed fabric, characterized in that: The wool printed and dyed fabric is prepared by the wool fabric printing and dyeing method according to any one of claims 1 to 9.

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