Preparation method of gel type alginate fiber non-woven fabric

Abstract

The invention relates to a preparation method of a gel type alginate fiber non-woven fabric, the preparation process of the alginate fiber non-woven fabric mainly comprises the following steps: preparing alginate, dissolving, filtering, defoaming, metering and spinning, solidifying, washing with water, drafting, sizing, oiling, drying and cutting off, gel fibers in the alginate have rapid and reliable hemostatic performance; the ion exchange reaction is immediately carried out with ions in the blood to generate ions playing a role in blood clotting, so that the rapid formation of blood clots in blood capillaries is promoted; meanwhile, gel is formed, wounds are protected, biodegradation and absorbability are achieved, and gel fibers in the seaweed can be decomposed into monosaccharide in the human body and finally absorbed by the human body; residual fibers of body surface wounds do not need to be treated, pain of patients is relieved, stimulation to human bodies is avoided, anaphylaxis and the like are not generated, and high liquid absorbency and high hydrophilicity are achieved: due to the fact that macromolecular chain segments contain a large number of hydrophilic groups, extremely high hydrophilic performance is achieved, and meanwhile, gel and non-woven fabric structures are generated after the macromolecular chain segments make contact with blood.

Description

Technical Field

[0001] The invention relates to the technical field of gel-type seaweed fiber non-woven fabrics, in particular to a preparation method of the gel-type seaweed fiber non-woven fabrics. Background Art

[0002] Gel-type seaweed fiber non-woven fabric is made of seaweed carbon fiber material made of seaweed carbon fired by special technology. The far infrared radiation rate can reach more than 90% at 35℃, which is a high value far infrared radiation rate material. Far infrared radiation can make the molecular movement in the cell active and resonate, making the body feel warm. This activity can give cells vitality and make the cells full of vitality. Far infrared radiation can make the human blood resonate, promote the vibration of water molecules in the body, and produce heat reaction due to the friction between molecules, which promotes the subcutaneous temperature to rise. The thermal expansion and contraction effect causes the microvessels to expand, accelerate blood circulation, promote metabolism, eliminate harmful substances in the body, and quickly produce new enzymes to make the human body's physiological functions more active.

[0003] The existing gel-type seaweed fiber non-woven fabric has a low fiber saturation force, which is currently about 70% in the laboratory. The fiber has high technical requirements for each link in the textile process, the strength of the yarn is weak, the fabric is prone to holes and drawing, and the yarn and the grey cloth cannot be dyed, and can only be spun in color, making the fiber difficult to shape. For this reason, we propose a preparation method for a gel-type seaweed fiber non-woven fabric. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing a gel-type seaweed fiber nonwoven fabric to solve the existing problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a method for preparing a gel-type seaweed fiber non-woven fabric, wherein the seaweed fiber non-woven fabric preparation process mainly includes: alginate, dissolving, filtering, degassing, metering spinning, coagulation, washing, drawing, shaping, oiling, drying and cutting;

[0006] The seaweed fiber nonwoven fabric extraction process comprises the following steps:

[0007] Step (1), firstly, harvesting wild seaweed and cultured seaweed, drying and dehydrating them, and then crushing, soaking and extracting them to obtain sodium alginate;

[0008] Step (2), extracting alginate from seaweed to prepare spinning solution, first preparing alginate solutions with a weight percentage of 80% and 95% alginate, then adding 10 parts by weight of synthetic resin to every 100 parts by weight of alginate solution and adjusting the pH to neutral, thus obtaining spinning solution;

[0009] Step (3), sodium alginate is a white powdery natural polysaccharide that has the stability, solubility, viscosity and safety required for pharmaceutical preparation excipients;

[0010] Step (5), dissolving, filtering and degassing the sodium alginate;

[0011] Step (6), wet spinning, after being ejected from the spinneret, passing through a coagulation bath, a washing bath, and finally drying and winding to form the seaweed fiber;

[0012] Step (7), seaweed fiber is a natural high molecular functional fiber made from sodium alginate extracted from kelp as the basic raw material through spinning, and has the properties of rapid hemostasis and human body absorption;

[0013] Step (8), sodium alginate is a basic raw material and can be added to the non-woven fabric production process. Spunbond fabric and non-woven fabric are subordinate to each other. There are many production processes for the manufacture of non-woven fabrics, among which spunbond is one of the non-woven fabric production processes (including spunbond, meltblown, hot rolling, spunlace, and most of the non-woven fabrics on the market are produced by spunbond);

[0014] Step (9), sodium alginate basic raw material is then added to the meltblown nonwoven fabric.

[0015] Preferably, in step (2), a wet spinning process is used to prepare the spinning solution into seaweed fiber to prepare the non-woven fabric. The seaweed fiber is used to prepare the non-woven fabric. Since the addition of synthetic resin can better improve the viscosity and strength of the seaweed fiber, it can better facilitate the filamentation of the spinning solution and can better improve the strength of the non-woven fabric.

[0016] Preferably, in step (6), a wet spinning process is adopted and implemented by a wet spinning system, wherein the wet spinning system has a filter, a spinneret and a coagulation bath, the spinning stock solution is filtered by the filter and then flows into the spinneret, the spinneret is arranged in the coagulation bath, and the spinning stock solution flowing out of the spinneret forms seaweed fiber in the coagulation bath and is collected. Therefore, the preparation of seaweed fiber can be achieved preferably.

[0017] Preferably, the gel fiber in the seaweed can quickly and reliably stop bleeding: once in contact with blood, it immediately undergoes an exchange reaction with ions in the blood to produce ions that have a coagulation effect, thereby promoting the rapid formation of blood clots in capillaries.

[0018] Preferably, in the step (2), brown algae, which is abundant in the ocean, is used as raw material, alginate polysaccharides are refined and extracted, and then the natural biomass regenerated fiber is prepared by wet spinning deep processing technology. The natural biomass regenerated fiber has the characteristics of being environmentally friendly, non-toxic, flame retardant, degradable, biocompatible, and having abundant raw material sources.

[0019] Preferably, in step (8), the non-woven fabric includes polyester, polypropylene, nylon, spandex, acrylic, etc. according to its composition; different compositions will have completely different non-woven fabric styles, and spunbond fabrics usually refer to polyester spunbond and polypropylene spunbond; and the styles of these two fabrics are very similar and can only be distinguished through high temperature testing.

[0020] Preferably, in step (8), the process of meltblown nonwoven fabric is: feeding of gel-type seaweed fiber polymer---melt extrusion---fiber formation---fiber cooling---web formation---reinforcement into fabric.

[0021] In the present invention, the seaweed fiber does not contain any chemical ingredients or additives, and has the characteristics of natural flame retardancy, antibacterial, high liquid absorption ratio, comfort, and breathability, which are unmatched by other fibers. "The characteristics of seaweed fiber products are that they are naturally flame retardant, with a flame retardant index of 45, far exceeding the index of 26 of general flame retardant materials; the liquid absorption efficiency reaches 15-20 times, which can quickly stop bleeding.

[0022] The gel fiber in seaweed can quickly and reliably stop bleeding: once it comes into contact with blood, it immediately undergoes an exchange reaction with the ions in the blood to produce ions that have a coagulation effect, promoting the rapid formation of blood clots in the capillaries; at the same time, it forms a gel to protect the wound.

[0023] Biodegradable and absorbable: The gel fibers in seaweed can be decomposed into monosaccharides in the human body and eventually absorbed by the body; the residual fibers in the wounds on the body surface do not need to be treated, which relieves the patient's pain. High biocompatibility: Made of natural polymer materials, it has no irritation to the human body and does not produce allergic reactions. High liquid absorption and high hydrophilicity: Because the macromolecular chain segments contain a large number of hydrophilic groups, they have extremely high hydrophilic properties. At the same time, the gel and non-woven fabric structure produced after contact with blood. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present invention provides a technical solution: a method for preparing a gel-type seaweed fiber non-woven fabric, wherein the preparation process of the seaweed fiber non-woven fabric mainly includes: alginate, dissolving, filtering, degassing, metering spinning, coagulation, washing, drawing, shaping, oiling, drying and cutting;

[0026] The seaweed fiber non-woven fabric extraction process includes the following steps:

[0027] Step 1: First, harvest wild seaweed and cultured seaweed, dry and dehydrate them, and then crush, soak and extract them to obtain sodium alginate;

[0028] Step 2, extracting alginate from seaweed to prepare spinning solution, first preparing alginate solutions with a weight percentage of 80% and 95% alginate, then adding 10 parts by weight of synthetic resin to every 100 parts by weight of alginate solution and adjusting the pH to neutral, thus obtaining spinning solution;

[0029] Step 3: Sodium alginate is a white powdery natural polysaccharide that has the stability, solubility, viscosity and safety required for pharmaceutical preparation excipients;

[0030] Step 5, dissolving, filtering and degassing the sodium alginate;

[0031] Step 6, after wet spinning, the fibers are ejected from the spinneret and passed through a coagulation bath, a washing bath, and finally dried and wound to form seaweed fibers;

[0032] Step 7: Seaweed fiber is a natural high molecular functional fiber made from sodium alginate extracted from kelp as the basic raw material through spinning, which has the properties of rapid hemostasis and human body absorption;

[0033] Step 8, sodium alginate is the basic raw material and can be added to the non-woven fabric production process. Spunbond fabric and non-woven fabric are subordinate to each other. There are many production processes for the manufacture of non-woven fabrics, among which spunbond is one of them. The non-woven fabric production processes include spunbond, meltblown, hot rolling and spunlace. Most of the non-woven fabrics on the market are produced by spunbond.

[0034] Step 9: Add the basic raw material of sodium alginate into the meltblown nonwoven fabric.

[0035] The preparation method of the gel-type seaweed fiber non-woven fabric has some unique use effects in the medical field due to the special functions of the fiber. When people use it, they usually process the seaweed fiber into the form of seaweed non-woven fabric, and use the wet spinning process to prepare the spinning solution into the seaweed fiber non-woven fabric. The seaweed fiber is used to prepare the non-woven fabric. Due to the addition of synthetic resin, the viscosity and strength of the seaweed fiber can be better improved, so it can be better facilitated to form the spinning solution, and the strength of the non-woven fabric can be better improved, and it can be quickly and easily made. Reliable hemostatic performance: Once it comes into contact with blood, it immediately exchanges with ions in the blood to produce ions that have a coagulation effect, which promotes the rapid formation of blood clots in the capillaries; at the same time, it forms gel to protect the wound. The gel fiber in the seaweed can quickly and reliably stop bleeding: Once it comes into contact with blood, it immediately exchanges with ions in the blood to produce ions that have a coagulation effect, which promotes the rapid formation of blood clots in the capillaries. It can be decomposed into monosaccharides in the human body and eventually absorbed by the body; the residual fibers in the wounds on the body surface do not need to be treated, thus alleviating the patient's pain.

Claims

1. A method for preparing a gel-type seaweed fiber nonwoven fabric, characterized in that: The preparation process of the seaweed fiber nonwoven fabric mainly includes: alginate, dissolution, filtration, degassing, metering spinning, coagulation, washing, drawing, shaping, oiling, drying and cutting; The seaweed fiber nonwoven fabric extraction process comprises the following steps: Step (1), firstly, harvesting wild seaweed and cultured seaweed, drying and dehydrating them, and then crushing, soaking and extracting them to obtain sodium alginate; Step (2), extracting alginate from seaweed to prepare spinning solution, first preparing alginate solutions with a weight percentage of 80% and 95% alginate, then adding 10 parts by weight of synthetic resin to every 100 parts by weight of alginate solution and adjusting the pH to neutral, thus obtaining spinning solution; Step (3), sodium alginate is a white powdery natural polysaccharide that has the stability, solubility, viscosity and safety required for pharmaceutical preparation excipients; Step (5), dissolving, filtering and degassing the sodium alginate; Step (6), wet spinning, after being ejected from the spinneret, passing through a coagulation bath, a washing bath, and finally drying and winding to form the seaweed fiber; Step (7), seaweed fiber is a natural high molecular functional fiber made from sodium alginate extracted from kelp as the basic raw material through spinning, and has the properties of rapid hemostasis and human body absorption; Step (8), sodium alginate is a basic raw material and can be added to the non-woven fabric production process. Spunbond fabric and non-woven fabric are subordinate to each other. There are many production processes for the manufacture of non-woven fabrics, among which spunbond is one of the non-woven fabric production processes (including spunbond, meltblown, hot rolling, spunlace, and most of the non-woven fabrics on the market are produced by spunbond); Step (9), sodium alginate basic raw material is then added to the meltblown nonwoven fabric.

2. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: In the step (2), a wet spinning process is adopted to prepare the spinning stock solution into seaweed fiber for preparing non-woven fabric. The seaweed fiber is used to prepare the non-woven fabric. Since the addition of synthetic resin can better improve the viscosity and strength of the seaweed fiber, it can better facilitate the spinning stock solution to form a thread, and can better improve the strength of the prepared non-woven fabric.

3. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: In the step (6), a wet spinning process is adopted and implemented by a wet spinning system, wherein the wet spinning system has a filter, a spinneret and a coagulation bath, the spinning stock solution is filtered by the filter and flows into the spinneret, the spinneret is arranged in the coagulation bath, and the spinning stock solution flowing out of the spinneret forms seaweed fiber in the coagulation bath and is collected. Therefore, the preparation of seaweed fiber can be achieved preferably.

4. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: The gel fiber in the seaweed can quickly and reliably stop bleeding: once in contact with blood, it immediately undergoes an exchange reaction with ions in the blood to produce ions that have a coagulation effect, thereby promoting the rapid formation of blood clots in the capillaries.

5. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: In the step (2), brown algae, which is abundant in the ocean, is used as raw material, and alginate polysaccharides are refined and extracted, and then the natural biomass regenerated fiber is prepared by wet spinning deep processing technology. The natural biomass regenerated fiber has the characteristics of being environmentally friendly, non-toxic, flame retardant, degradable, biocompatible, and having abundant raw material sources.

6. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: In the step (8), the non-woven fabrics include polyester, polypropylene, nylon, spandex, acrylic, etc. according to their composition; different compositions will result in completely different styles of non-woven fabrics, and spunbond fabrics usually refer to polyester spunbond and polypropylene spunbond; and the styles of these two fabrics are very similar and can only be distinguished through high temperature testing.

7. The method for preparing a gel-type seaweed fiber nonwoven fabric according to claim 1, characterized in that: In the step (8), the process of meltblown nonwoven fabric is as follows: feeding of gel-type seaweed fiber polymer---melting extrusion---fiber formation---fiber cooling---web formation---reinforcement into fabric.