CN114164644A - Hydrogel type alginate fiber spunlace non-woven fabric and preparation method and application thereof - Google Patents

Hydrogel type alginate fiber spunlace non-woven fabric and preparation method and application thereof Download PDF

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CN114164644A
CN114164644A CN202111477478.XA CN202111477478A CN114164644A CN 114164644 A CN114164644 A CN 114164644A CN 202111477478 A CN202111477478 A CN 202111477478A CN 114164644 A CN114164644 A CN 114164644A
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spunlace
fibers
woven fabric
fiber
hydrogel type
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郝继海
朱玉登
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Qingdao Hicell New Material Technology Co ltd
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Qingdao Hicell New Material Technology Co ltd
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
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    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
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Abstract

The invention relates to a gel type alginate fiber spunlace non-woven fabric and a preparation method and application thereof, wherein the preparation method comprises the following steps: (1) selecting three fiber raw materials of alginate fibers, tencel fibers and cuprammonium fibers with the sizes of 1.5D and 38mm, opening, mixing and carding the fiber raw materials, and generating non-woven fabric through a spunlace process; (2) soaking the non-woven fabric in 0.002mol/L calcium hydroxide solution for 30-60 seconds, and then soaking the non-woven fabric in 3-6% oxalic acid solution for 6-12 hours; (3) soaking the non-woven fabric obtained in the step (2) in 0.5-1% sodium carboxymethyl cellulose solution for 1-2h, then soaking in alcohol solution with volume concentration of 50% at 80-90 ℃ for 8-24h, washing, filtering, drying and winding. The gel type alginate fiber spunlace non-woven fabric has good hygroscopicity, is soft and light in texture, can quickly gel when meeting water, and is high in fiber strength.

Description

Hydrogel type alginate fiber spunlace non-woven fabric and preparation method and application thereof
Technical Field
The invention belongs to the technical field of fiber manufacturing, and particularly relates to a hydrogel type alginate fiber spunlace non-woven fabric, and a preparation method and application thereof.
Background
The alginate fiber is a novel high-performance fiber which is obtained by taking polysaccharide extracted from natural seaweed as a raw material and a water-soluble metal salt solution as a coagulating bath through a wet spinning production process and can be used as a green fiber. The product of the alginate fiber has good health care, medical and beauty functions. The seaweed fiber has natural skin caring, moisture keeping and skin caring effects, because the seaweed accumulates abundant mineral substances in the sea, and contains carbohydrate, amino acid, fat and various vitamins, etc., and can activate metabolism of cells, and has anti-inflammatory and antipruritic effects. The alginate fibers also have high hygroscopicity, and the thinner base cloth can absorb more essence, so that the essence skin care effect is better maintained. In addition, the alginate fiber has far infrared radiation effect: promote the vibration of water molecules in the body, accelerate blood circulation and promote metabolism; when the alginate fiber is used as a mask cloth, the anions generated by the alginate fiber can form a conductive chain with metal ions in the skin to adsorb heavy metals, slow down the oxidation and aging speed of cells, promote the metabolism of a human body and delay aging; in addition, the alginate fiber has good biocompatibility, and can not cause adverse symptoms such as skin sensitivity or anaphylactic reaction after long-term use.
However, most of the conventional alginate fibers cannot be gelled or can be gelled in distilled water, but the gel amount is small, and the liquid absorption amount is mostly below 15g/g, so that the effect is limited when the alginate fibers are used for facial masks. In addition, most of the prior art alginate fibers are difficult to gel or gel for too long time, so that the prior art alginate fibers are difficult to be widely applied to the aspect of wound treatment (the prior art alginate fibers usually take more than half an hour to absorb exudates and pus blood to complete the gelation, so the prior art alginate fibers cannot be applied to various occasions such as heavy bleeding and the like). It can be seen that most of the current alginate fibers are limited in application range because they are not or hardly gelled in distilled water or have too long gelling time.
In addition, the conventional alginate fiber nonwoven fabric has poor process stability in softening treatment, and the greater the water absorption amount, the poorer the air permeability, flexibility and strength. Therefore, the development of the alginate fiber spunlace non-woven fabric which is soft and light in texture, can rapidly gel when meeting water and has high fiber strength has wide application prospect.
Disclosure of Invention
The invention aims to solve the problems and provides the hydrogel type alginate fiber spunlace nonwoven fabric and the preparation method and application thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) selecting three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are 1.5D and 38mm, opening, mixing and carding the fiber raw materials, and generating non-woven fabric through a spunlace process;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 30-60 seconds, and then soaking in 3-6% by mass of oxalic acid solution for 6-12 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in 0.5-1% sodium carboxymethylcellulose solution for 1-2h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 8-24h, washing, filtering, drying and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
The alginate fiber non-woven fabric prepared by mixing the alginate fiber, the tencel fiber and the copper ammonia fiber through the spunlace process keeps the advantages of the alginate fiber, such as high water absorption, good biocompatibility, antibacterial property, far infrared radiation and the like, and has the advantages of softness and comfort of the tencel fiber, good air permeability, high strength and the like of the copper ammonia fiber. The strength and the mechanical property of the fabric are improved through the spunlace operation; the strength and softness of the spunlace fabric can be improved by soaking in 0.002mol/L calcium hydroxide solution, and the softness and heavy metal adsorption capacity are enhanced by soaking in oxalic acid solution, so that the spunlace fabric has a better antibacterial effect; by soaking in sodium carboxymethyl cellulose solution, not only sodium ions and calcium ions are subjected to ion exchange, and the contents of the sodium ions and the calcium ions in the fibers are kept in a reasonable range, so that the alginate fibers are easy to gel, the water absorption performance is improved, the strength of the prepared alginate fibers is ensured, the uniformity of the fabric can be repaired, and the stability is improved. The fabric is soaked in the alcohol solution with the volume concentration of 50%, so that the cleaning effect is achieved, gelation in the cleaning process can be avoided, partial water in the fabric is removed, and the fabric is softer and lighter. In addition, the alginate fiber spunlace non-woven fabric is soft, light and thin, can save raw materials to a certain extent, and reduces the production cost.
Further, in the step (1), the mass ratio of the alginate fibers to the tencel fibers to the cuprammonium fibers is (6-10): 2: 1.
preferably, in the step (1), the mass ratio of the alginate fibers to the tencel fibers to the cuprammonium fibers is 7: 2: 1.
further, the step (1) further comprises a pre-wetting treatment: pre-humidifying the fiber web by using a perforated roller spunlace head and a transmission screen clamping spunlace head, wherein the pressure of the pre-humidifying spunlace is firstly low and then high: firstly carrying out spunlace treatment by using a spunlace head with the water pressure of 15-30 bar, wherein the liquid sprayed out from the water spraying holes of the spunlace head water spraying plate is a calcium chloride aqueous solution with the mass fraction of 0.6% -0.9%, so that the strength and the softness of the prepared alginate fiber membrane cloth are better improved, and the user experience is improved; and then the water jet pressure is increased to 60-100 bar, and the liquid sprayed out from the water jet holes of the water jet plate of the water jet head is saturated sodium chloride aqueous solution, so that the content of sodium ions and calcium ions in the fabric can be adjusted, the prepared fabric can be quickly gelled when meeting water, the user experience is improved, and the application range is expanded. The fiber entanglement effect can be enhanced through pre-wetting, and the strength of the fibers is enhanced.
Preferably, when the water jet head with the water pressure of 15-30 bar is used for water jet treatment, the liquid sprayed from the water jet holes of the water jet head water jet plate is 0.8 percent of calcium chloride aqueous solution by mass fraction.
Further, the spunlace process in the step (1) adopts 8-10 spunlace heads to carry out spunlace reinforcement treatment, and the water pressure is 90-150 bar. The function of the fiber is to further reinforce the strength of the fiber and improve the mechanical property of the spunlace fabric.
The invention also discloses the hydrogel type alginate fiber spunlace non-woven fabric prepared by the preparation method. The hydrogel type alginate fiber spunlace non-woven fabric prepared by the invention has good hygroscopicity, soft and light texture, rapid gelling when meeting water, high fiber strength, good air permeability and good user experience.
Furthermore, the hydrogel type alginate fiber spunlace nonwoven fabric prepared by the method has the gram weight of 14-22 g/square meter.
The invention also discloses an application of the hydrogel type alginate fiber spunlace non-woven fabric in the fields of medical treatment and facial masks.
The invention has the beneficial effects that:
the alginate fiber non-woven fabric prepared by mixing the alginate fiber, the tencel fiber and the copper ammonia fiber through the spunlace process keeps the advantages of the alginate fiber, such as high water absorption, good biocompatibility, antibacterial property, far infrared radiation and the like, and has the advantages of softness and comfort of the tencel fiber, good air permeability, high strength and the like of the copper ammonia fiber. The strength and the mechanical property of the fabric are improved through the spunlace operation; the strength and softness of the spunlace fabric can be improved by soaking in 0.002mol/L calcium hydroxide solution, and the softness and heavy metal adsorption capacity are enhanced by soaking in oxalic acid solution, so that the spunlace fabric has a better antibacterial effect; by soaking in sodium carboxymethyl cellulose solution, not only sodium ions and calcium ions are subjected to ion exchange, and the contents of the sodium ions and the calcium ions in the fibers are kept in a reasonable range, so that the alginate fibers are easy to gel, the water absorption performance is improved, the strength of the prepared alginate fibers is ensured, the uniformity of the fabric can be repaired, and the stability is improved. The fabric is soaked in the alcohol solution with the volume concentration of 50%, so that the cleaning effect is achieved, gelation in the cleaning process can be avoided, partial water in the fabric is removed, and the fabric is softer and lighter. In addition, the alginate fiber spunlace non-woven fabric is soft, light and thin, can save raw materials to a certain extent, and reduces the production cost.
Detailed Description
The invention will be better understood from the following examples. However, one skilled in the art will readily appreciate that the specific structures, process conditions, and results thereof described in the examples are meant to be illustrative only and should not, nor should they be taken as limiting the invention as detailed in the claims.
Example 1
A preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) according to the following steps: 2: weighing three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers according to the mass ratio of 1, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are all 1.5D and 38mm, and opening, mixing and carding the three fiber raw materials; the fiber web is pre-humidified by a perforated roller spunlace head and a transmission screen clamping spunlace head, the pressure of the pre-humidified spunlace is firstly low and then high, and the spunlace pressure parameters are as follows: the pressure is 15-30 bar, the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is calcium chloride aqueous solution with the mass fraction of 0.8%, the water spraying pressure is increased to 60-100 bar, and the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is saturated sodium chloride aqueous solution; after pre-humidification, 9 spunlace heads are adopted for spunlace reinforcement treatment, and the water pressure is 90-150 bar, so that non-woven fabric is generated;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 40 seconds, and then soaking in 5% oxalic acid solution for 10 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in 0.9% sodium carboxymethylcellulose solution for 2h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 12h, washing, filtering, drying (the drying temperature is 80-90 ℃) and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
A hydrogel type alginate fiber spunlace non-woven fabric prepared by the preparation method.
An application of the hydrogel type alginate fiber spunlace nonwoven fabric in the fields of medical treatment and facial masks.
Example 2
A preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) according to the following steps of 6: 2: weighing three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers according to the mass ratio of 1, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are 1.5D and 38mm, opening, mixing and carding the three fiber raw materials, pre-wetting, and carrying out spunlace reinforcement treatment by adopting 8 spunlace heads, wherein the water pressure is 90-150 bar to generate a non-woven fabric;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 30 seconds, and then soaking in 3% oxalic acid solution for 12 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in 0.5% sodium carboxymethylcellulose solution for 2h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 24h, washing, filtering, drying (the drying temperature is 80-90 ℃) and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
A hydrogel type alginate fiber spunlace non-woven fabric prepared by the preparation method.
An application of the hydrogel type alginate fiber spunlace nonwoven fabric in the fields of medical treatment and facial masks.
Example 3
A preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) according to the following steps of 8: 2: weighing three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers according to the mass ratio of 1, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are all 1.5D and 38mm, and opening, mixing and carding the three fiber raw materials; the fiber web is pre-humidified by a perforated roller spunlace head and a transmission screen clamping spunlace head, the pressure of the pre-humidified spunlace is firstly low and then high, and the spunlace pressure parameters are as follows: the pressure is 15-30 bar, the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is calcium chloride aqueous solution with the mass fraction of 0.9%, the water spraying pressure is increased to 60-100 bar, and the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is saturated sodium chloride aqueous solution; after pre-humidification, 10 spunlace heads are adopted for spunlace reinforcement treatment, and the water pressure is 90-150 bar, so that non-woven fabric is generated;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 60 seconds, and then soaking in 6% oxalic acid solution for 12 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in a 1% sodium carboxymethylcellulose solution for 1h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 8h, washing, filtering, drying (the drying temperature is 80-90 ℃) and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
A hydrogel type alginate fiber spunlace non-woven fabric prepared by the preparation method.
An application of the hydrogel type alginate fiber spunlace nonwoven fabric in the fields of medical treatment and facial masks.
Example 4
A preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) according to the following steps: 2: weighing three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers according to the mass ratio of 1, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are all 1.5D and 38mm, and opening, mixing and carding the three fiber raw materials; the fiber web is pre-humidified by a perforated roller spunlace head and a transmission screen clamping spunlace head, the pressure of the pre-humidified spunlace is firstly low and then high, and the spunlace pressure parameters are as follows: the pressure is 15-30 bar, the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is calcium chloride aqueous solution with the mass fraction of 0.6%, the water spraying pressure is increased to 60-100 bar, and the liquid sprayed out from the water spraying holes of the water spraying plate of the water spraying head is saturated sodium chloride aqueous solution; after pre-humidification, 9 spunlace heads are adopted for spunlace reinforcement treatment, and the water pressure is 90-150 bar, so that non-woven fabric is generated;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 30 seconds, and then soaking in oxalic acid solution with the mass fraction of 4% for 6 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in 0.8% sodium carboxymethylcellulose solution for 2h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 16h, washing, filtering, drying (the drying temperature is 80-90 ℃) and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
A hydrogel type alginate fiber spunlace non-woven fabric prepared by the preparation method.
An application of the hydrogel type alginate fiber spunlace nonwoven fabric in the fields of medical treatment and facial masks.
And (3) performance testing:
the moisture absorption of the fibers was measured as follows: the hydrogel type alginate fiber spunlace nonwoven fabrics prepared in examples 1 to 4 of the present invention were cut into several pieces as samples, and the dry weight W1(g) of each piece was measured. The sample was placed in a 90mm petri dish, 50mL of deionized water was added, and after standing at room temperature for 30 seconds as required for the test, the sample was held by tweezers at one corner and suspended in the air for 60 seconds, and the wet weight W2(g) of the sample was measured. The liquid absorption rate per unit weight of the sample was (W2-W1)/W1. Experimental results show that the hydrogel type alginate fiber spunlace non-woven fabric prepared by the method is good in water absorption performance, and the liquid absorption rate is 28-37 g/g.
Tests prove that the hydrogel type alginate fiber spunlace nonwoven fabric prepared by the invention has good breaking strength and elongation at break, and the breaking strength is 22.3-31.8 cN/dtex.
In addition, the hydrogel type alginate fiber spunlace nonwoven fabric prepared by the invention has the advantages of softness, lightness and thinness, and the gram weight of the nonwoven fabric is 14-22 g/square meter.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and equivalent changes and modifications made according to the spirit of the present invention should be covered thereby.

Claims (10)

1. A preparation method of hydrogel type alginate fiber spunlace nonwoven fabric comprises the following steps:
(1) selecting three fiber raw materials of alginate fibers, tencel fibers and copper ammonia fibers, wherein the sizes of the alginate fibers, the tencel fibers and the copper ammonia fibers are 1.5D and 38mm, opening, mixing and carding the fiber raw materials, and generating non-woven fabric through a spunlace process;
(2) soaking the non-woven fabric obtained in the step (1) in 0.002mol/L calcium hydroxide solution for 30-60 seconds, and then soaking in 3-6% by mass of oxalic acid solution for 6-12 hours;
(3) and (3) soaking the non-woven fabric obtained in the step (2) in 0.5-1% sodium carboxymethylcellulose solution for 1-2h, then soaking in an alcohol solution with the volume concentration of 50% at 80-90 ℃ for 8-24h, washing, filtering, drying and winding to obtain the hydrogel type alginate fiber spunlace non-woven fabric.
2. The method for preparing the hydrogel type alginate fiber spunlace nonwoven fabric according to claim 1, wherein in the step (1), the mass ratio of the alginate fibers to the tencel fibers to the cuprammonium fibers is (6-10): 2: 1.
3. the method for preparing the hydrogel type alginate fiber spunlace nonwoven fabric according to claim 1, wherein in the step (1), the mass ratio of the alginate fibers to the tencel fibers to the cuprammonium fibers is 7: 2: 1.
4. the method for preparing hydrogel type alginate fiber spunlace nonwoven fabric according to claim 1, wherein the step (1) further comprises a pre-wetting treatment: the fiber web is pre-humidified by a spunlace head of a perforated roller and a screen conveying curtain clamping spunlace head.
5. The method for preparing hydrogel type alginate fiber spunlace nonwoven fabric according to claim 4, wherein the pressure of prewetting spunlace is low firstly and then high: firstly, carrying out spunlace treatment by using a spunlace head with the water pressure of 15-30 bar; the hydroentangling pressure is then increased to 60 to 100 bar.
6. The method for preparing the hydrogel type alginate fiber spunlace nonwoven fabric according to claim 5, wherein when a spunlace head with a water pressure of 15 to 30 bar is used for spunlacing, the liquid sprayed from the water spraying holes of the water spraying plate of the spunlace head is a calcium chloride aqueous solution with a mass fraction of 0.6 to 0.9 percent; when the water jet head with water pressure of 60-100 bar is used for water jet, the liquid sprayed from the water jet holes of the water jet plate of the water jet head is saturated sodium chloride aqueous solution.
7. The method of claim 6, wherein the water jet holes of the water jet plate of the water jet head eject the calcium chloride solution with a mass fraction of 0.8% when the water jet plate is water-jet treated with the water jet head with a water pressure of 15-30 bar.
8. The method for preparing a hydrogel type alginate fiber spunlace nonwoven fabric according to claim 1, wherein the spunlace process in step (1) is carried out by using 8-10 spunlace heads for spunlace reinforcement, and the water pressure is 90-150 bar.
9. The hydrogel type alginate fiber spunlace nonwoven prepared by the method for preparing the hydrogel type alginate fiber spunlace nonwoven according to any one of claims 1 to 8.
10. The hydrogel type alginate fiber spunlace nonwoven fabric of claim 9, which is applied to the fields of medical treatment and facial masks.
CN202111477478.XA 2021-12-06 2021-12-06 Hydrogel type alginate fiber spunlace non-woven fabric and preparation method and application thereof Pending CN114164644A (en)

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