Apocynum venetum fiber oiling agent and humidifying and health preserving process thereof

Abstract

The invention discloses an apocynum venetum fiber oiling agent and a humidifying and health preserving process thereof. The preparation method comprises the following steps: (1) preparing an apocynum venetum fiber oiling agent, wherein the oiling agent consists of glycerol, a softening agent, a penetrating agent, a nonionic antistatic agent and water; putting the prepared oiling agent into a stirrer for stirring, so that the oiling agent is uniformly dispersed; (2) spraying a vaporific health-preserving oil agent by using a sprinkling can, and uniformly spraying the vaporific health-preserving oil agent on the fibers; and (3) putting the jute fibers sprayed with the oil agent into a curing bin for curing. According to the health preserving process, the apocynum venetum fiber health preserving auxiliary agent can fully enter the whole fibrilia, so that the apocynum venetum fiber is fully preserved. Compared with the prior art, the preparation method has the advantages that the breaking strength is increased by 2.1-10.8%, the static friction factor between the fiber and the metal is reduced by 49.2-54.3%, the dynamic friction factor between the fiber and the metal is reduced by 45.2-51.7%, the softness of the fiber is improved, and the problems of brittleness, easiness in breaking and difficulty in spinning of the fibrilia are solved.

Description

Technical Field

[0001] The invention relates to a dogbane fiber oil agent and a health-preserving humidification process thereof. Background Art

[0002] Apocynum ramie belongs to the perennial herbaceous plant of the Apocynaceae family. It has high application value and strong adaptability to the environment. Apocynum ramie fiber is strong and softer than other hemp fibers, and has great development potential. The cellulose content of Apocynum ramie is only 45% to 55%, and the pectin content is high. The interaction between the substances in the hemp bast tissue is closer, so the Apocynum ramie fiber must be degummed. However, degumming also removes the fatty wax part that is beneficial to spinning, resulting in a rough surface of the hemp fiber after degumming. The fiber is still in a hard state and has poor softness. If it is combed directly, it is very easy to cause the fiber to be broken, resulting in a large amount of hemp falling, and the obtained fiber is short and the fiber is seriously damaged. Therefore, it is necessary to improve the fiber properties of the hemp fiber after degumming.

[0003] At present, the common method for improving the properties of hemp fiber is to use hemp fiber health care additives to health it. The fiber health care refers to the use of additives to treat the hemp fiber after the fiber is degummed and other treatment processes, so as to improve the regain, softness, antistatic and surface lubrication of the hemp fiber, and improve the softness, spinnability and other properties of the fiber. The health care additives can selectively include softeners, smoothing agents, antistatic agents, emulsifiers, penetrants or moisturizers according to the requirements of the established performance of the required product. The selection of additives with different functions and the ratio of each component based on the selected additive components have different functions for improving the spinnability, humidity and other properties of hemp fiber. For example, a special jute fiber health-care additive invented by a Chinese patent with the authorization number CN101205688B improves the softness of jute fibers, strengthens the cohesion between fibers, and can maintain the fiber regain required in the weaving process of jute fibers; a health-care pretreatment method for improving the spinnability of hemp fibrils invented by a Chinese patent with the publication number CN102174721A reduces the hemp fiber falling rate, improves the flexibility, and improves the spinnability of hemp fibrils; a special jute fiber health-care additive invented by a Chinese patent with the publication number CN1821481 mainly solves the technical problem that the jute fiber length is shortened while being refined in the existing method, and the spinnability of the jute fiber is poor after treatment. Therefore, it is very important for hemp fiber processing to select an additive with excellent health-care performance for different hemp fibers and determine the appropriate component ratio. At present, the special additive used in the health-care of apocynum fiber has not been involved. Therefore, the present invention provides a apocynum fiber oil agent and a humidification health-care process thereof. Summary of the invention

[0004] The purpose of the present invention is to provide a special auxiliary agent for the health maintenance of apocynum venetum fiber, which can improve the softness and spinnability of apocynum venetum fiber.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A kind of apocynum fiber oil agent and its humidification and health-care process, specifically divided into the following three steps:

[0007] 1) Preparation of apocynum fiber oil: The oil is composed of glycerin, softener, penetrant, nonionic antistatic agent and water. Put the prepared oil into a stirrer and stir it to make it evenly dispersed.

[0008] 2) Oiling of Lop Nappa Fiber: First, loosen the Lop Nappa Fiber by manual beating to remove some impurities and debris, then spread the fiber evenly, and use a spray bottle to spray the mist health oil agent evenly on the fiber.

[0009] 3) Hemp fiber stacking and curing: the hemp fiber sprayed with the oil agent is placed in a curing bin for curing.

[0010] Preferably, the softener in step 1) is an organosilicon polymer.

[0011] Preferably, the penetrant in step 1) is JFC penetrant.

[0012] Preferably, in step 1), the mass percentage of glycerin is 1% to 4%, the mass percentage of softener is 1% to 4%, the mass percentage of penetrant is 0.5% to 2%, the mass percentage of antistatic agent is 0.5% to 2%, and the mass percentage of water is 88% to 97%.

[0013] Preferably, in step 1), the oil agent stirring time is 30 to 60 minutes, and the stirring speed is 800 r / min.

[0014] Preferably, in step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:5 to 1:8.

[0015] Preferably, in step 3), the curing time is 24 hours and the curing temperature is 40°C.

[0016] Beneficial effects of the present invention:

[0017] (1) Glycerol is added to the health-preserving additive of the present invention. Glycerol is a polyhydroxy compound. The three hydroxyl groups in the glycerol molecule can form strong hydrogen bonds with water molecules, making it well soluble in water; glycerol can absorb and lock water, forming a moisturizing layer around the hemp fiber to prevent excessive loss of water in the fiber, playing a good moisturizing role; glycerol can penetrate into the hemp fiber, play a role in lubricating the fiber molecular chain, and reduce the friction between the fiber molecules.

[0018] (2) A softener is added to the health-preserving additive of the present invention, so that the oil agent can give the fiber better softness. The texture of hemp fiber itself is relatively stiff. The softener can form a uniform film on the fiber surface or interact with the molecular chain inside the fiber, change the friction coefficient of the fiber surface, and make the hemp fiber softer and smoother. During the processing of hemp fiber, such as combing and spinning, friction will occur between the fibers, which is easy to cause fiber damage. The softener can play a lubricating role on the fiber surface, reduce the friction between the fibers, and reduce the breakage and fuzzing of the fibers.

[0019] (3) The health-preserving aid of the present invention also contains a penetrant, which can help the oil agent to quickly and evenly penetrate into the hemp fiber and improve the uniformity of the oil agent in the hemp fiber.

[0020] (4) The health-preserving aid of the present invention also contains an antistatic agent, which can absorb moisture in the environment and eliminate static electricity generated by friction during the processing and use of the apocynum fiber.

[0021] (5) Compared with the fiber obtained by water spray curing, the fiber obtained by using the apocynum fiber oil agent and the humidification curing process of the present invention has a 2.1-10.8% higher breaking strength, a 49.2-54.3% lower static friction coefficient between the fiber and the metal, and a 45.2-51.7% lower dynamic friction coefficient between the fiber and the metal. The fiber obtained by the present invention has good softness and spinnability, and is suitable for mass production and processing. DETAILED DESCRIPTION

[0022] The following is a further detailed description of a kind of apocynum fiber oil agent and its humidification curing process provided by the present invention in conjunction with specific embodiments, so as to better illustrate the purpose, advantages and technical solutions of the present invention. It should be understood that the specific examples are only used to explain and introduce the present invention, and cannot limit the scope of application of the present invention. Any modifications and changes made to the present invention, without departing from the purpose and scope of the present invention, fall within the protection scope of the present invention.

[0023] Example 1: Humidifying hemp fiber is specifically divided into the following two steps:

[0024] 1) Humidification of Lop Nappa Fiber: First, loosen the Lop Nappa Fiber by manual beating to remove some impurities and debris, then spread the fiber evenly, and use a spray pot to spray mist water evenly on the fiber.

[0025] 2) Hemp fiber stacking and curing: the hemp fiber sprayed with water mist is placed in a curing bin for stacking and curing.

[0026] Preferably, in step 1), the mass ratio of the apocynum fiber to water is 1:5.

[0027] Preferably, in step 3), the curing time is 24 hours and the curing temperature is 40°C.

[0028] Comparative Example 1:

[0029] A kind of apocynum fiber oil agent and its humidification and health-care process, specifically divided into the following three steps:

[0030] 1) Configuration of the apocynum fiber oil: 1% by mass of glycerin, 1% by mass of softener, 0.5% by mass of penetrant, 0.5% by mass of nonionic antistatic agent, and 97% by mass of water. Put the prepared oil into a stirrer and stir to make it evenly dispersed.

[0031] 2) Oiling of Lop Nappa Fiber: First, loosen the Lop Nappa Fiber by manual beating to remove some impurities and debris, then spread the fiber evenly, and use a spray bottle to spray the mist health oil agent evenly on the fiber.

[0032] 3) Hemp fiber stacking and curing: the hemp fiber sprayed with the oil agent is placed in a curing bin for stacking and curing, so that the curing agent can better penetrate into the fiber.

[0033] Preferably, in step 1), the oil agent stirring time is 30 min and the stirring speed is 800 r / min.

[0034] Preferably, in step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:5.

[0035] Preferably, in step 3), the curing time is 24 hours and the curing temperature is 40°C.

[0036] Comparative Example 2:

[0037] A kind of apocynum fiber oil agent and its humidification and health-care process, specifically divided into the following three steps:

[0038] (1) Preparation of the apocynum fiber oil: 2% by mass of glycerin, 2% by mass of softener, 1% by mass of penetrant, 1% by mass of nonionic antistatic agent, and 94% by mass of water. Put the prepared oil into a stirrer and stir it to make it evenly dispersed.

[0039] (2) Oiling of Lop Nappa Fibers: First, the Lop Nappa Fibers are loosened by manual beating to remove some impurities and debris, and then the fibers are evenly spread and a mist of health oil is sprayed evenly on the fibers using a spray bottle.

[0040] (3) Hemp fiber stacking and curing: The hemp fiber sprayed with the oil agent is placed in a curing bin for stacking and curing, so that the curing agent can better penetrate into the fiber.

[0041] Preferably, in step 1), the oil agent stirring time is 30 min and the stirring speed is 800 r / min.

[0042] Preferably, in step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:6.

[0043] Preferably, the curing time in step 3) is 24 hours and the curing temperature is 40°C

[0044] Comparative Example 3:

[0045] A kind of apocynum fiber oil agent and its humidification and health-care process, specifically divided into the following three steps:

[0046] (1) Preparation of the apocynum fiber oil: 3% by mass of glycerin, 3% by mass of softener, 1.5% by mass of penetrant, 1.5% by mass of nonionic antistatic agent, and 91% by mass of water. The prepared oil is placed in a stirrer and stirred to be evenly dispersed.

[0047] (2) Oiling of Lop Nappa Fibers: First, the Lop Nappa Fibers are loosened by manual beating to remove some impurities and debris, and then the fibers are evenly spread and a mist of health oil is sprayed evenly on the fibers using a spray bottle.

[0048] (3) Hemp fiber stacking and curing: The hemp fiber sprayed with the oil agent is placed in a curing bin for stacking and curing, so that the curing agent can better penetrate into the fiber.

[0049] Preferably, in step 3), the oil agent is stirred for 1 hour at a stirring speed of 800 r / min.

[0050] Preferably, in step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:7.

[0051] Preferably, in step 3), the curing time is 24 hours and the curing temperature is 40°C.

[0052] Comparative Example 4:

[0053] A kind of apocynum fiber oil agent and its humidification and health-care process, specifically divided into the following three steps:

[0054] (1) Preparation of the apocynum fiber oil: 4% by mass of glycerin, 4% by mass of softener, 2% by mass of penetrant, 2% by mass of nonionic antistatic agent, and 88% by mass of water. Put the prepared oil into a stirrer and stir it to make it evenly dispersed.

[0055] (2) Oiling of Lop Nappa Fibers: First, the Lop Nappa Fibers are loosened by manual beating to remove some impurities and debris, and then the fibers are evenly spread and a mist of health oil is sprayed evenly on the fibers using a spray bottle.

[0056] (3) Hemp fiber stacking and curing: The hemp fiber sprayed with the oil agent is placed in a curing bin for stacking and curing, so that the curing agent can better penetrate into the fiber.

[0057] Preferably, in step 1), the stirring time of the oil agent is 1 hour and the stirring speed is 800 r / min.

[0058] Preferably, in step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:8.

[0059] Preferably, in step 3), the curing time is 24 hours and the curing temperature is 40°C.

[0060] The health-promoting apocynum venetum fibers obtained in the above embodiments and comparative examples were subjected to performance tests, and the test methods and standards were as follows:

[0061] Test method for the strength of apocynum fiber: refer to GB / T5886-1986 "Test method for breaking strength of single ramie fiber" to test the strength of apocynum fiber.

[0062] Test method for dynamic and static friction coefficient between apocynum fiber and metal: refer to T / CSTM 00522-2022 "Test method for friction coefficient of chemical fibers" to test the dynamic and static friction coefficients between fiber and metal.

[0063] The health-preserving hemp fibers obtained in Example 1 and Comparative Examples 1-4 were tested for performance according to the above test method. The results are shown in Tables 1 and 2.

[0064] Table 1 Breaking strength / cN Elongation at break / mm Elongation at break / % Example 1 21.32 0.26 2.61 Comparative Example 1 22.51 0.27 2.73 Comparative Example 2 23.62 0.35 3.45 Comparative Example 3 22.41 0.34 3.43 Comparative Example 4 21.76 0.33 3.32

[0065] Table 2 Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Static friction coefficient between fiber and metal 0.5653 0.2871 0.2871 0.2822 0.2584 Dynamic friction coefficient between fiber and metal 0.4634 0.2539 0.2237 0.2494 0.2363 Difference in static and dynamic friction coefficient between fiber and metal 0.1019 0.0332 0.0598 0.0328 0.0221

[0066] From Tables 1 and 2, we can see that:

[0067] (1) By comparing the fiber properties of Example 1 and Comparative Examples 1-4, it can be seen that the fiber obtained by using the apocynum fiber oil agent and its humidification curing process of the present invention has a 2.1-10.8% higher breaking strength than the fiber obtained by water spraying humidification curing, which indicates that the addition of oil to the hemp fiber forms an oil film on the surface of the apocynum fiber. The presence of the oil film enables the fiber to be more evenly stressed during the stretching process, thereby improving the fiber's breaking strength. At the same time, hemp fiber is a fiber with good hygroscopicity. The water molecules in the oil agent will enter the amorphous region of the fiber, making it relatively easy for the molecular chains to slide. During the stretching process, the fiber molecular chains can be better oriented and stretched, rather than breaking due to local stress concentration, thereby improving the fiber's breaking strength.

[0068] (2) By comparing the fiber properties of Example 1 and Comparative Examples 1-4, it can be seen that the dynamic and static friction coefficients between the Apocynum fiber sprayed with oil and metal are lower than those in the water spray process, wherein the static friction coefficient between the fiber and metal is reduced by 49.2-54.3%, and the dynamic friction coefficient between the fiber and metal is reduced by 45.2-51.7%. This indicates that the oil film formed on the fiber surface by the oil humidification and curing process changes the fiber surface properties, reduces the roughness of the fiber surface, makes it smooth, and thus reduces the friction coefficient.

[0069] (3) The smaller the dynamic friction coefficient between fiber and metal, the easier it is to comb the fiber. During combing, fatigue damage to combing equipment components such as card clothing and rollers will be alleviated, extending the service life of card clothing and rollers and meeting the needs of mass production and processing.

[0070] The above description is not intended to limit the present invention in other forms, and the present invention is not limited to the above cases. Those skilled in the art may make simple changes, improvements, additions or substitutions within the essential scope of the present invention, which still fall within the protection scope of the technical solution of the present invention.

Claims

1. A kind of apocynum fiber oil agent and humidification and health-care process thereof, characterized in that: Here are the steps: 1) Preparation of apocynum fiber oil: The oil is composed of glycerin, softener, penetrant, nonionic antistatic agent and water. Put the prepared oil into a stirrer and stir it to make it evenly dispersed. 2) Oiling and humidifying the apocynum fiber: First, the apocynum fiber is loosened by manual beating to remove some impurities and debris, and then the fiber is evenly spread, and a spray pot is used to spray the mist health oil agent evenly on the fiber. 3) Hemp fiber stacking and curing: the hemp fiber sprayed with the oil agent is placed in a curing bin for curing.

2. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: In the step 1), the softener is an organic silicon polymer.

3. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: The penetrant in step 1) is JFC penetrant.

4. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: In the step 1), the mass percentage of glycerin is 1% to 4%, the mass percentage of softener is 1% to 4%, the mass percentage of penetrant is 0.5% to 2%, the mass percentage of antistatic agent is 0.5% to 2%, and the mass percentage of water is 88% to 97%.

5. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: In the step 1), the oil agent is stirred for 30 to 60 minutes at a stirring speed of 800 r / min.

6. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: In the step 2), the mass ratio of the apocynum fiber to the health-preserving oil is 1:5 to 1:

8.

7. The apocynum venetum fiber oil agent and humidification and curing process thereof according to claim 1, characterized in that: In the step 3), the curing time of the apocynum venetum fiber is 24 hours, and the curing temperature is 40° C.