Softening aid for apocynum venetum degummed fibers

Abstract

The invention discloses a softening auxiliary agent for apocynum venetum degummed fibers. The preparation method comprises the following steps: (1) selecting a smoothing agent, an emulsifier, a penetrant, an antistatic agent, emulsified oil and water as auxiliary components; and (2) mixing the components of the auxiliary agent, and stirring in a stirrer to uniformly disperse. The softening auxiliary agent can fully soften apocynum venetum fibers, improves the softness of the fibers, and solves the problems of large noil rate, serious fiber damage and short fiber length in the carding process of the fibrilia.

Description

Technical Field

[0001] The invention relates to a softening auxiliary agent for degummed apocynum venetum fibers Background Art

[0002] Apocynum ramie belongs to the perennial root herb of Apocynaceae, which has high application value and strong adaptability to the environment. As a renewable green resource, apocynum ramie fiber has excellent air permeability, moisture absorption and wear resistance, and is also conducive to environmental protection and sustainable development. There are large-scale production areas in Xinjiang and other regions of China, which are rich in resources and are an important project for the development of western regions. Compared with other hemp fibers, the cellulose content of apocynum ramie is lower, and the pectin content is high, and the interaction between the various substances in the hemp bast tissue is closer. Therefore, the apocynum ramie fiber must be degummed, but the fat wax part that is beneficial to spinning is also removed during degumming, resulting in a rough surface of the hemp fiber after degumming, and the fiber is still in a hard state and poor in softness. In the opening and combing process before spinning, the hemp fibers rub and entangle with each other, and there are still some pectin and lignin between the fibers. If the opening and combing are directly performed, it is very easy to cause the fibers to be broken, a large amount of hemp falls, and the obtained fibers are short in length and seriously damaged. Therefore, the fiber properties of the hemp fibers after degumming must be improved.

[0003] At present, the common method to improve the properties of hemp fiber is to use additives to treat the fiber, improve the moisture regain, softness, antistatic and surface lubrication of hemp fiber, and improve the softness, spinnability and other properties of the fiber. The selection of additives with different functions and the ratio of each component based on the selected additive components have different functions in improving the spinnability, humidity and other properties of hemp fiber. For example, a Chinese patent invention with authorization number CN100427665C discloses a method for stretching and thinning jute fibers, in which an auxiliary agent is sprayed on the jute fibers for curing, wherein the auxiliary agent is a mixture of sodium alkyl, ethylene oxide condensate and water, which solves the technical problem that the jute fibers are shortened while being thinned in the existing method, resulting in poor spinnability of the jute fibers after treatment; for example, a Chinese patent invention with authorization number CN1267601C discloses an auxiliary agent and process for anti-sticking and softening treatment during stretching and thinning of degummed hemp fibers, in which the auxiliary agent is composed of non-hydrophilic oil substances, emulsifiers, cross-linking agents, catalysts and water, which solves the problem of adhesion between fibers during the stretching process of hemp fibers. For example, a special health-preserving agent for jute fiber invented by the Chinese patent with the authorization number CN101205688B improves the softness of jute fiber, strengthens the cohesion between fibers, and can maintain the fiber regain required in the weaving process of jute fiber; for example, an oiling agent for ramie bio-degumming production of fine hemp invented by the Chinese patent with the publication number CN102732976A, the components are a mixture of vegetable oil, oleic acid, triethanolamine and water, and the bio-degummed ramie fine hemp after oiling has uniform color, soft and loose texture, easy to open and comb during spinning, and low breakage rate; for example, an oiling agent for ramie production invented by the Chinese patent with the publication number CN101353825, the components include lubricating cohesion agent, emulsifier, penetrant, moisturizer and softener, and the oiling agent has good permeability, high oil film strength on the fiber surface, and good cohesion. Therefore, it is very important for hemp fiber processing to select an auxiliary agent with excellent health-preserving properties for different hemp fibers and determine the appropriate component ratio. The invention discloses a softening auxiliary agent and a health treatment method thereof, which solves the problems that degummed apocynum venetum fibers are easily broken during the carding process and have a high rate of falling fibers, and ensures the strength of the fibers. Summary of the invention

[0004] The purpose of the present invention is to provide a softening auxiliary agent for degummed apocynum venetum fiber. Through the auxiliary agent, the softness of apocynum venetum fiber is improved, and the problems of fiber being easily broken during the combing process, a large amount of fiber falling, short fiber length and serious fiber damage are solved.

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

[0006] A softening auxiliary agent for degummed apocynum fiber is specifically divided into the following two steps:

[0007] 1) Selection of components of softening additives for degummed apocynum fiber: The additives are composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water.

[0008] 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

[0009] Preferably, the smoothing agent in step 1) is amino silicone oil, and the viscosity of the amino silicone oil is 800 to 5000 mPa.s.

[0010] Preferably, the emulsifier in step 1) is polyethylene glycol with an average molecular weight of 400 to 1500.

[0011] Preferably, in step 1), the penetrant is fatty alcohol polyoxyethylene ether; and the antistatic agent is a nonionic antistatic agent.

[0012] Preferably, the emulsified oil in step 1) is composed of JNM-D series emulsified oil.

[0013] Preferably, in step 1), the mass percentage of the smoothing agent is 1% to 2%, the mass percentage of the emulsifier is 1%, the mass percentage of the penetrant is 0.3% to 0.5%, the mass percentage of the antistatic agent is 0.3% to 0.5%, the mass percentage of the emulsified oil is 3%, and the mass percentage of water is 93% to 94.4%.

[0014] Preferably, the stirring temperature of the auxiliary agent in step 2) is 30-50°C.

[0015] Preferably, the stirring time of the auxiliary agent in step 2) is 60 to 100 minutes.

[0016] Preferably, the stirring speed of the auxiliary agent in step 2) is 600-800 r / min.

[0017] Beneficial effects of the present invention:

[0018] (1) The softening aid of the present invention contains amino silicone oil with amino functional groups introduced into the silicone oil molecular chain. The amino group can react with active groups such as hydroxyl groups on the fiber surface, so that the amino silicone oil can be better adsorbed on the fiber surface; the amino silicone oil has good permeability and can effectively enter the interior of the fiber, thereby improving the softness of the apocynum fiber; compared with ordinary silicone oil, the amino silicone oil can improve the hydrophilicity of the hemp fiber, and the amino group forms hydrogen bonds with water molecules, thereby enhancing the interaction between the hemp fiber and water to a certain extent, thereby improving the hygroscopicity of the apocynum fiber.

[0019] (2) The softening agent of the present invention contains an emulsifier, which has both hydrophilic and hydrophobic groups in its molecular structure, and can reduce the surface tension of the oil-water interface and evenly disperse the oil droplets in the water; it can form a protective film around the oil droplets, and when disturbed by the external environment, the protective film can maintain the stability of the oil droplets, so that the agent can maintain its performance for a long time, thereby improving the storage stability of the agent; it can reduce the surface tension of the hemp fiber, so that the agent can spread more easily on the surface of the hemp fiber, thereby better exerting the role of other components in the agent.

[0020] (3) A penetrant is added to the softening agent of the present invention to reduce the surface tension on and inside the hemp fiber, so that the emulsified amino silicone oil can quickly and evenly penetrate into the fiber, thereby improving the health-preserving effect; the agent can penetrate into each part of the fiber bundle, ensuring that the agent is evenly distributed in the hemp fiber, thereby improving the overall performance of the hemp fiber.

[0021] (4) The softening aid of the present invention contains an antistatic agent. During the processing and use of apocynum fiber, static electricity is easily generated due to friction. The antistatic agent can eliminate static electricity by absorbing moisture and conducting electricity. It can absorb moisture in the environment, conduct the static electricity generated by the fiber, and reduce the accumulation of static electricity.

[0022] (5) The softening agent of the present invention contains emulsified oil, which cooperates with amino silicone oil to form a lubricating film on the surface of hemp fiber, reducing the friction between the hemp fiber and the combing parts during the combing process, and preventing fiber damage; at the same time, this film can also play a certain protective role on the hemp fiber, preventing the fiber from being affected by external environmental factors; the emulsified oil also participates in the emulsification process of the agent. It cooperates with the emulsifier to help maintain the emulsified state of the agent, so that the various components in the agent are better mixed together, enhance the stability and uniformity of the agent, and ensure that the agent can effectively play its role in maintaining the health of hemp fiber.

[0023] (6) The fibers obtained by using the softening auxiliary agent of the degummed apocynum venetum fiber of the present invention are opened and combed. Experiments show that the fiber shedding rate after curing with the auxiliary agent during opening and combing is greatly reduced, and the fiber damage is small. The fiber obtained by the present invention has good softness and spinnability, can reduce the friction between fibers and between fibers and metals during the combing process, reduce the shedding rate, and reduce the fiber damage, so that the fiber is smoother in the subsequent spinning processes such as drafting and twisting, thereby improving the quality and efficiency of spinning. DETAILED DESCRIPTION

[0024] The softening aid for degummed apocynum venetum fiber provided by the present invention is further described in detail below in conjunction with specific embodiments 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 fall within the protection scope of the present invention without departing from the purpose and scope of the present invention.

[0025] Embodiment 1:

[0026] A softening auxiliary agent for degummed apocynum fiber is specifically divided into the following two steps:

[0027] 1) Selection of components of softening agent for degummed apocynum fiber: The agent is composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water. The mass percentage of smoothing agent is 1%, the mass percentage of emulsifier is 1%, the mass percentage of penetrant is 0.3%, the mass percentage of antistatic agent is 0.3%, the mass percentage of emulsified oil is 3%, and the mass percentage of water is 94.4%.

[0028] 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

[0029] Preferably, the molecular weight of the amino silicone oil in step 1) is 400.

[0030] Preferably, the emulsified oil in step 1) consists of JNM-D3 and JNM-D4 emulsified oils.

[0031] Preferably, the stirring temperature of the auxiliary agent in step 2) is 30°C.

[0032] Preferably, the stirring time of the auxiliary agent in step 2) is 60 min.

[0033] Preferably, in step 2), the stirring speed of the auxiliary agent is 600 r / min.

[0034] Embodiment 2:

[0035] A softening auxiliary agent for degummed apocynum fiber is specifically divided into the following two steps:

[0036] 1) Selection of components of softening agent for degummed apocynum fiber: The agent is composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water. The mass percentage of smoothing agent is 1%, the mass percentage of emulsifier is 1%, the mass percentage of penetrant is 0.3%, the mass percentage of antistatic agent is 0.3%, the mass percentage of emulsified oil is 3%, and the mass percentage of water is 94.4%.

[0037] 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

[0038] Preferably, the molecular weight of the amino silicone oil in step 1) is 600.

[0039] Preferably, the emulsified oil in step 1) consists of JNM-D13 and JNM-D14 emulsified oils.

[0040] Preferably, the stirring temperature of the auxiliary agent in step 2) is 30°C.

[0041] Preferably, the stirring time of the auxiliary agent in step 2) is 60 min.

[0042] Preferably, in step 2), the stirring speed of the auxiliary agent is 600 r / min.

[0043] Embodiment 3:

[0044] A softening auxiliary agent for degummed apocynum fiber is specifically divided into the following two steps:

[0045] 1) Selection of components of softening agent for degummed apocynum fiber: The agent is composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water. The mass percentage of smoothing agent is 2%, the mass percentage of emulsifier is 1%, the mass percentage of penetrant is 0.5%, the mass percentage of antistatic agent is 0.5%, the mass percentage of emulsified oil is 3%, and the mass percentage of water is 93%.

[0046] 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

[0047] Preferably, the molecular weight of the amino silicone oil in step 1) is 1000.

[0048] Preferably, the emulsified oil in step 1) consists of JNM-D3 and JNM-D4 emulsified oils.

[0049] Preferably, the stirring temperature of the auxiliary agent in step 2) is 40°C.

[0050] Preferably, the stirring time of the auxiliary agent in step 2) is 100 min.

[0051] Preferably, in step 2), the stirring speed of the auxiliary agent is 800 r / min.

[0052] Embodiment 4:

[0053] A softening auxiliary agent for degummed apocynum fiber is specifically divided into the following two steps:

[0054] 1) Selection of components of softening agent for degummed apocynum fiber: The agent is composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water. The mass percentage of smoothing agent is 2%, the mass percentage of emulsifier is 1%, the mass percentage of penetrant is 0.5%, the mass percentage of antistatic agent is 0.5%, the mass percentage of emulsified oil is 3%, and the mass percentage of water is 93%. The prepared agent is put into a stirrer for stirring to make it evenly dispersed.

[0055] 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

[0056] Preferably, the molecular weight of the amino silicone oil in step 1) is 1500.

[0057] Preferably, the emulsified oil in step 1) consists of JNM-D13 and JNM-D14 emulsified oils.

[0058] Preferably, the stirring temperature of the auxiliary agent in step 2) is 50°C.

[0059] Preferably, the stirring time of the auxiliary agent in step 2) is 100 min.

[0060] Preferably, in step 2), the stirring speed of the auxiliary agent is 800 r / min.

[0061] The fibers obtained by the softening auxiliary agent of the degummed apocynum venetum fiber of the present invention are opened and combed, and the results show that the falling rate of the apocynum venetum fiber after curing with the auxiliary agent is greatly reduced, the fiber dispersion is better, the fiber damage is less, and the fiber length is increased. The fibers obtained by the present invention have good softness and spinnability, can reduce the friction between fibers and between fibers and metals during the opening and combing process, reduce the damage degree of the opening and combing equipment, and meet the needs of mass production and processing.

[0062] 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 softening aid for degummed apocynum venetum fiber, characterized in that: Here are the steps: 1) Selection of components of softening additives for degummed apocynum fiber: The additives are composed of smoothing agent, emulsifier, penetrant, antistatic agent, emulsified oil and water. 2) Preparation of the softening agent for degummed apocynum fiber: Mix the various components of the agent, put them into a blender and stir them to make them evenly dispersed.

2. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: In the step 1), the lubricant is amino silicone oil, and the viscosity of the amino silicone oil is 800-5000 mPa.s.

3. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: In the step 1), the emulsifier is polyethylene glycol, and the average molecular weight is 400-1500.

4. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: In the step 1), the penetrant is fatty alcohol polyoxyethylene ether; and the antistatic agent is a nonionic antistatic agent.

5. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: The emulsified oil in step 1) is composed of JNM-D series emulsified oil.

6. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: In the step 1), the mass percentage of the smoothing agent is 1% to 2%, the mass percentage of the emulsifier is 1%, the mass percentage of the penetrant is 0.3% to 0.5%, the mass percentage of the antistatic agent is 0.3% to 0.5%, the mass percentage of the emulsified oil is 3%, and the mass percentage of water is 93% to 94.4%.

7. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: The stirring temperature of the auxiliary agent in step 2) is 30-50°C.

8. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: The stirring time of the auxiliary agent in step 2) is 60 to 100 minutes.

9. The softening aid for degummed apocynum venetum fiber according to claim 1, characterized in that: In the step 2), the stirring speed of the auxiliary agent is 600-800 r / min.