Motherwort cellulose fiber and preparation method thereof

Abstract

The invention provides a motherwort cellulose fiber. According to the fiber, the content of motherwort extracts is 8.2-8.5%, the dried break strength is greater than or equal to 4 cN / dtex, the wet break strength is greater than or equal to 2.2 cN / dtex, and the dried break elongation is greater than or equal to 24%. The invention further provides a preparation method of the fiber. The method comprises the steps of preparing motherwort gelatin fluid, preparing motherwort microcapsules, adding a dispersing agent, and preparing a spinning stock solution. According to the motherwort cellulose fiber prepared by the preparation method disclosed by the invention, the slow release period of effective components of motherwort is long, and reaches 1.5-2.5 years. According to the motherwort cellulose fiber prepared by the preparation method disclosed by the invention, the content of the motherwort extracts is 8.2-8.5%, the dried break strength is greater than or equal to 4 cN / dtex, the wet break strength is greater than or equal to 2.2 cN / dtex, the dried break elongation is greater than or equal to 24%, the quantity of residual sulfur is less than or equal to 4.2 mg / 100g, the rate of extra-long fibers is less than or equal to 1.0%, and long fibers are less than or equal to 10 mg / 100g.

Description

technical field

[0001] The invention relates to a method for preparing motherwort cellulose fibers, belonging to the field of fiber preparation. Background technique

[0002] With the advancement of science and technology and the improvement of people's living standards, people's pursuit of material and spiritual life, especially the concept of clothing, is also constantly changing, and people are paying more and more attention to the comfort and functionality of textiles. Traditional cotton, hemp, silk, wool and other natural fibers are affected by factors such as themselves and natural climate, grain and cotton competition for land, etc., the functionality and output of the fibers are far from meeting the actual needs. With the continuous outbreak of the global energy crisis, the quantity of synthetic chemical fibers will also be difficult to continue to grow. In recent years, the development of regenerated cellulose fibers has eased the pressure of insufficient productio...

Examples

Embodiment 1

[0037] Example 1 The preparation method of Motherwort cellulose fiber whose specification is 1.67dtex×38mm

[0038] (1) Selection of raw materials

[0039] The motherwort extract is selected as the raw material of motherwort microcapsules. The motherwort extract is a brown powder, 100% passes through an 80 mesh sieve, the motherwort content is 60%, the ash content is ≤3.2%, the water content is ≤3.8%, and the heavy metal content ≤5ppm, lead content≤1ppm, arsenic content≤0.5ppm, mercury content≤0.4ppm, total number of bacteria≤500cfu / g, total number of mold≤50cfu / g, Salmonella and Escherichia coli should not be detected.

[0040] (2) Preparation of motherwort emulsified dispersion

[0041] The motherwort emulsified dispersion liquid is processed and prepared from motherwort extract and peach gum solution; the dosage of the motherwort extract and peach gum solution is calculated according to parts by weight; 5 parts of motherwort extract and 3 parts of peach gum solution are mi...

Embodiment 2

[0076] Example 2 Testing the antiallergic properties of fabrics woven from cellulose fibers of the present invention

[0077] Test parameters: skin redness (visual score), itching (subjective feeling), skin redness area (percentage of initial area)

[0078] Grouping: the present invention group, control group, 30 people in each group;

[0079] Measurement method: Use a specific test blade to drip histamine hydrochloride (5mg / ml) on the skin at the same position on the upper part of the arms of all the subjects, the lowest amount is 0.2ml, and the skin will become red, swollen and itchy after 5 minutes;

[0080] The present invention group wears the clothes that adopt the fiber described in the embodiment of the present invention 1 to make, and the matched group wears the clothes that general cellulose fiber is woven; The specific results are shown in Table 4-5;

[0081] Table 2 Skin redness and swelling (maximum severity value is 10)

[0082]

[0083] Table 3 skin itchin...

Embodiment 3

[0086] Example 3 The process parameters for preparing motherwort gelatin solution are optimized

[0087] Using the preparation method of motherwort cellulose fiber described in Example 1, only change step (3) to prepare motherwort gelatin solution, the amount of gelatin aqueous solution, stirring speed, cooling speed, after the cellulose fiber is prepared, the dry strength of the fiber is detected , wet strength, dry elongation at break, sustained release period, the bacteriostatic rate to Staphylococcus aureus, the bacteriostatic rate to Escherichia coli, the bacteriostatic rate to Candida albicans; Adopt the detection method of embodiment 2, detect Anti-allergic properties of fibers (24h skin redness, skin itching).

[0088] Table 4 The multi-factor combination analysis of the process parameters for the preparation of motherwort gelatin solution

[0089]

[0090] Table 5 Analysis of process parameters optimization experiment results for the preparation of motherwort gela...

technical field

[0001] The invention relates to a method for preparing motherwort cellulose fibers, belonging to the field of fiber preparation. Background technique

[0002] With the advancement of science and technology and the improvement of people's living standards, people's pursuit of material and spiritual life, especially the concept of clothing, is also constantly changing, and people are paying more and more attention to the comfort and functionality of textiles. Traditional cotton, hemp, silk, wool and other natural fibers are affected by factors such as themselves and natural climate, grain and cotton competition for land, etc., the functionality and output of the fibers are far from meeting the actual needs. With the continuous outbreak of the global energy crisis, the quantity of synthetic chemical fibers will also be difficult to continue to grow. In recent years, the development of regenerated cellulose fibers has eased the pressure of insufficient productio...

Examples

Embodiment 1

[0037] Example 1 The preparation method of Motherwort cellulose fiber whose specification is 1.67dtex×38mm

[0038] (1) Selection of raw materials

[0039] The motherwort extract is selected as the raw material of motherwort microcapsules. The motherwort extract is a brown powder, 100% passes through an 80 mesh sieve, the motherwort content is 60%, the ash content is ≤3.2%, the water content is ≤3.8%, and the heavy metal content ≤5ppm, lead content≤1ppm, arsenic content≤0.5ppm, mercury content≤0.4ppm, total number of bacteria≤500cfu / g, total number of mold≤50cfu / g, Salmonella and Escherichia coli should not be detected.

[0040] (2) Preparation of motherwort emulsified dispersion

[0041] The motherwort emulsified dispersion liquid is processed and prepared from motherwort extract and peach gum solution; the dosage of the motherwort extract and peach gum solution is calculated according to parts by weight; 5 parts of motherwort extract and 3 parts of peach gum solution are mi...

Embodiment 2

[0076] Example 2 Testing the antiallergic properties of fabrics woven from cellulose fibers of the present invention

[0077] Test parameters: skin redness (visual score), itching (subjective feeling), skin redness area (percentage of initial area)

[0078] Grouping: the present invention group, control group, 30 people in each group;

[0079] Measurement method: Use a specific test blade to drip histamine hydrochloride (5mg / ml) on the skin at the same position on the upper part of the arms of all the subjects, the lowest amount is 0.2ml, and the skin will become red, swollen and itchy after 5 minutes;

[0080] The present invention group wears the clothes that adopt the fiber described in the embodiment of the present invention 1 to make, and the matched group wears the clothes that general cellulose fiber is woven; The specific results are shown in Table 4-5;

[0081] Table 2 Skin redness and swelling (maximum severity value is 10)

[0082]

[0083] Table 3 skin itchin...

Embodiment 3

[0086] Example 3 The process parameters for preparing motherwort gelatin solution are optimized

[0087] Using the preparation method of motherwort cellulose fiber described in Example 1, only change step (3) to prepare motherwort gelatin solution, the amount of gelatin aqueous solution, stirring speed, cooling speed, after the cellulose fiber is prepared, the dry strength of the fiber is detected , wet strength, dry elongation at break, sustained release period, the bacteriostatic rate to Staphylococcus aureus, the bacteriostatic rate to Escherichia coli, the bacteriostatic rate to Candida albicans; Adopt the detection method of embodiment 2, detect Anti-allergic properties of fibers (24h skin redness, skin itching).

[0088] Table 4 The multi-factor combination analysis of the process parameters for the preparation of motherwort gelatin solution

[0089]

[0090] Table 5 Analysis of process parameters optimization experiment results for the preparation of motherwort gela...

Images