Nylon fiber pen point and preparation method thereof

文档序号：840201 发布日期：2021-04-02 浏览：29次中文

阅读说明：本技术 一种尼龙纤维笔头及其制备方法 (Nylon fiber pen point and preparation method thereof ) 是由王苏方王思铭于 2020-12-30 设计创作，主要内容包括：本申请涉及制笔领域,尤其是涉及一种尼龙纤维笔头及其制备方法。一种尼龙纤维笔头,其制备方法为：S1.初步定型；S2.浸胶；将尼龙纤维束牵引浸没于带有胶液的胶水槽中,胶液的厚度为30-50mm,浸胶时间为30-40s；S3.最终成型；浸胶采用的胶液的组分为胶黏剂、溶剂、改性PVC糊树脂和防霉剂；本申请的制备方法具有以下优点：采用尼龙纤维制得笔头,这种材质弹性更强,收缩性更大,韧性好；且本申请以胶黏剂、溶剂、改性PVC糊树脂和防霉剂混合制得的胶液浸润尼龙纤维笔头,一方面可缩短浸胶时间,另一方面还可提高纤维笔头的韧性,并使尼龙纤维笔头不易分散,书写更顺滑。(The application relates to the field of pen making, in particular to a nylon fiber pen point and a preparation method thereof. A nylon fiber pen point is prepared by the following steps: s1, primarily shaping; s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 30-50mm, and the glue dipping time is 30-40 s; s3, final forming; the glue solution used for gum dipping comprises an adhesive, a solvent, modified PVC paste resin and a mildew preventive; the preparation method has the following advantages: the pen point is made of nylon fibers, and the material has stronger elasticity, larger contractibility and good toughness; in addition, the glue solution prepared by mixing the adhesive, the solvent, the modified PVC paste resin and the mildew preventive is used for infiltrating the nylon fiber pen point, so that the gum dipping time can be shortened, the toughness of the fiber pen point can be improved, the nylon fiber pen point is not easy to disperse, and the writing is smoother.)

1. A preparation method of a nylon fiber pen point is characterized by comprising the following steps: the method comprises the following steps:

s1, primarily shaping; sequentially stranding and shaping nylon fibers to obtain nylon fiber bundles;

s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 30-50mm, and the glue dipping time is 30-40 s;

s3, final forming; curing at 90-110 deg.C for 8-10min, cutting into required length, and grinding to obtain fiber pen point;

the glue solution adopted by the gum dipping comprises an adhesive, a solvent, modified PVC paste resin and a mildew preventive.

2. The method for preparing the nylon fiber pen point as claimed in claim 1, wherein the method comprises the following steps: the preparation method of the modified PVC paste resin comprises the following steps: taking PVC paste resin and glucomannan with the weight portion ratio of 10: 7; firstly, mixing PVC paste resin and tetrahydrofuran which is 1.5 times of the weight of the PVC paste resin to ensure that the system is acidic, then adding glucomannan while stirring, and reacting for 1-1.2h at the temperature of 60-70 ℃ to obtain the PVC paste resin.

3. The method for preparing the nylon fiber pen point as claimed in claim 1, wherein the method comprises the following steps: the adhesive comprises the following raw materials in parts by weight:

40-50 parts of furfuryl ketone resin;

8-10 parts of branched polyethyleneimine;

2-5 parts of polyglycerol polyricinoleate;

0.2-0.3 part of trimethylolpropane.

4. The method for preparing the nylon fiber pen point as claimed in claim 3, wherein the method comprises the following steps: the ratio of the branched polyethyleneimine to the polyglycerol polyricinoleate is 3: 1.

5. The method for preparing the nylon fiber pen point as claimed in claim 3, wherein the method comprises the following steps: the raw materials also comprise 0.4 to 0.5 portion of polytetrafluoroethylene and 1 to 2 portions of monoethanolamine according to the weight portion.

6. The method for preparing the nylon fiber pen point as claimed in claim 5, wherein the method for preparing the adhesive comprises the following steps:

firstly, mixing polyglycerol polyricinoleate branched-chain polyethyleneimine and trimethylolpropane, heating to 70-80 ℃, stirring and reacting for 1-1.5h, then preserving heat, adding furfuryl ketone resin, then adding a mixture of polytetrafluoroethylene and monoethanolamine, and continuing to stir for 30-40min to obtain the adhesive.

7. The method for preparing the nylon fiber nib of claim 1, wherein the method comprises the following steps: the adhesive, the solvent, the modified PVC paste resin and the mildew preventive are 5: 3: 1.2: 0.4.

8. the method for preparing the nylon fiber pen point as claimed in claim 1, wherein the method comprises the following steps: the mildew preventive is tributyltin chloride; the solvent is ethyl acetate.

9. A nylon fiber nib manufactured by the manufacturing method of any one of claims 1 to 8.

Technical Field

The application relates to the field of pen making, in particular to a nylon fiber pen point and a preparation method thereof.

Background

The main parts currently used in the production of markers are fibre nibs, fibre cores for water storage and marker inks. With the continuous improvement of the quality and the requirement of life, work and study of people, higher requirements and perfect pursuits are provided for the writing function of the marking pen. People not only use it to write characters and mark on objects, but also want to use it to draw pictures, paintings, etc.

At present, a patent with publication number CN103754004A discloses a preparation method of an acrylic fiber nib, which comprises the following steps: a: splicing strips; b: coloring and shaping; c: gluing; d: preheating; e: curing; f: shaping; g: and (6) cutting.

The above prior art solutions have the following drawbacks: the existing fiber pen point has the problems of poor bonding force between fibers and poor toughness, and is not smooth enough for writing, so the improvement is still needed.

Disclosure of Invention

In order to improve the toughness of the pen point and enable the writing of the pen point to be smoother, the application provides a nylon fiber pen point and a preparation method thereof.

In a first aspect, the application provides a method for preparing a nylon fiber pen point, which adopts the following technical scheme:

a preparation method of a nylon fiber pen point comprises the following steps:

s1, primarily shaping; sequentially stranding and shaping nylon fibers to obtain nylon fiber bundles;

s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 30-50mm, and the glue dipping time is 30-40 s;

s3, final forming; curing at 90-110 deg.C for 8-10min, cutting into required length, and grinding to obtain fiber pen point;

the glue solution adopted by the gum dipping comprises an adhesive, a solvent, modified PVC paste resin and a mildew preventive.

By adopting the technical scheme, the nylon fiber pen point is subjected to gum dipping treatment by using the glue solution consisting of the adhesive, the solvent, the modified PVC paste resin and the mildew preventive, so that the nylon fiber pen point which is high in bonding strength, strong in toughness and smooth in writing can be obtained.

Preferably: the preparation method of the modified PVC paste resin comprises the following steps: taking PVC paste resin and glucomannan with the weight portion ratio of 10: 7; firstly, mixing PVC paste resin and tetrahydrofuran which is 1.5 times of the weight of the PVC paste resin to ensure that the system is acidic, then adding glucomannan while stirring, and reacting for 1-1.2h at the temperature of 60-70 ℃ to obtain the PVC paste resin.

By adopting the technical scheme, the PVC paste resin is modified by adding glucomannan, so that a pasty product with good stability and mechanical strength can be obtained, and the pasty product is added into the glue solution component and used for treating the nylon fiber pen point, so that the pen point with excellent mechanical property can be obtained, and the pen point has good toughness and smooth writing.

Preferably: the adhesive comprises the following raw materials in parts by weight:

40-50 parts of furfuryl ketone resin;

8-10 parts of branched polyethyleneimine;

2-5 parts of polyglycerol polyricinoleate;

0.2-0.3 part of trimethylolpropane.

By adopting the technical scheme, the furfuryl ketone resin is used as a main body of the adhesive, the polyglycerol polyricinoleate contains a flexible chain segment, the polyglycerol polyricinoleate and the branched chain polyethyleneimine are crosslinked under the action of trimethylolpropane to obtain an emulsion product forming a body-type crosslinked reticular structure, and the flexible chain segment achieves a toughening effect, so that the mechanical property of the adhesive is improved, and the nylon fiber pen point subjected to gum dipping treatment has higher toughness; the nylon fiber pen point dipped by the adhesive has strong bonding force and is not easy to disperse.

Preferably: the ratio of the branched polyethyleneimine to the polyglycerol polyricinoleate is 3: 1.

By adopting the technical scheme, when the ratio of branched polyethyleneimine to polyglycerol polyricinoleate is 3:1, the obtained product can better permeate into a capillary channel of nylon fibers, the branched polyethyleneimine has a certain curing effect, and the toughness of the nylon fiber pen point can be enhanced after the emulsion product permeated into the capillary channel of the nylon fibers is cured, so that the nylon fibers are combined more firmly, and the bifurcation condition of the pen point is reduced, so that the pen point is not easy to scatter during writing and is smoother to write.

Preferably: the raw materials also comprise 0.4 to 0.5 portion of polytetrafluoroethylene and 1 to 2 portions of monoethanolamine according to the weight portion.

By adopting the technical scheme, the mixture of polytetrafluoroethylene and monoethanolamine with high lubrication and non-adhesiveness is added into the adhesive component, so that the toughness of the nylon fiber pen point can be improved; the reason for this is probably that the reaction product of polytetrafluoroethylene and monoethanolamine can slow down the solidification speed of the emulsion product, prolong the flow time of the emulsion product, so that the emulsion product can fully permeate between the capillary channel of the nylon fiber and the nylon fiber, and then the toughness of the nylon fiber nib is greatly improved after solidification.

Preferably: the preparation method of the adhesive comprises the following steps:

By adopting the technical scheme, the adhesive with higher bonding force is prepared by adopting the method, so that the treated pen point has higher bonding force, high toughness, difficult dispersion and smoother writing.

Preferably: the adhesive, the solvent, the modified PVC paste resin and the mildew preventive are 5: 3: 1.2: 0.4.

by adopting the technical scheme, the adhesive, the solvent, the modified PVC paste resin and the mildew preventive are mixed in a weight ratio of 5: 3: 1.2: the glue solution obtained by mixing the components in the proportion of 0.4 can well soak the pen point.

Preferably: the mildew preventive is tributyltin chloride; the solvent is ethyl acetate.

By adopting the technical scheme, the solvent is ethyl acetate to improve the compatibility of the components; the tributyltin chloride is added as the mildew preventive, so that the breeding of mildew in the use and storage periods of the nylon fiber pen point can be inhibited, and the service life of the nylon fiber pen point is prolonged.

In a second aspect, the present application provides a nylon fiber nib made by the method of making a nylon fiber nib.

In summary, the present application has the following beneficial effects:

1. the pen point is made of nylon fibers, and the material is high in elasticity, high in contractibility and good in toughness; in addition, the glue solution prepared by mixing the adhesive, the solvent, the modified PVC paste resin and the mildew preventive is used for infiltrating the nylon fiber pen point, so that the gum dipping time can be shortened, the toughness of the fiber pen point can be improved, the nylon fiber pen point is not easy to disperse, and the writing is smoother;

2. according to the application, glucomannan is preferably added to modify PVC paste resin, so that a pasty product with good stability and mechanical strength can be obtained, and the nylon fiber pen point with excellent performance is obtained through treatment, and has good toughness and smooth writing;

3. according to the application, the furfuryl ketone resin is used as a main body of the adhesive, the polyglycerol polyricinoleate contains a flexible chain segment, the polyglycerol polyricinoleate and branched chain polyethyleneimine are crosslinked under the action of trimethylolpropane to obtain an emulsion product forming a body-type crosslinked reticular structure, and the flexible chain segment achieves a toughening effect, so that the mechanical property of the adhesive is improved, and the nylon fiber pen point subjected to gum dipping treatment has higher toughness; the nylon fiber pen point dipped by the modified adhesive has strong bonding force and is not easy to disperse;

4. when the ratio of branched polyethyleneimine to polyglycerol polyricinoleate is 3:1, the obtained product can better permeate into a capillary channel of the nylon fiber, the branched polyethyleneimine has a certain curing effect, and the emulsion product permeated into the capillary channel of the nylon fiber can enhance the toughness of the nylon fiber pen point after being cured, so that the bifurcation condition of the pen point is reduced;

5. the mixture of polytetrafluoroethylene and monoethanolamine with high lubrication and non-adhesiveness is added into the adhesive component, so that the toughness of the nylon fiber pen point is improved.

Detailed Description

The present application will be described in further detail with reference to examples.

In the present application, the furfuryl ketone resin is purchased from Hebei two bran International trade company, Inc.; branched polyethylenimine was purchased from northern Biotech, Inc., Shanghai; polyglycerol polyricinoleate is purchased from Shandong Binshonzhou Jinsheng new material science and technology company with limited responsibility; polytetrafluoroethylene is available from Jusheng fluorine chemical, Inc. of Zhejiang.

The raw materials used in the following embodiments may be those conventionally commercially available unless otherwise specified.

Examples

Example 1

The application discloses a nylon fiber pen point and a preparation method thereof, wherein the preparation method comprises the following steps:

s1, primarily shaping; sequentially stranding and shaping nylon fibers to obtain nylon fiber bundles;

s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 30mm, and the glue dipping time is 30 s;

the glue solution comprises the following components in parts by weight: 3: 1.2: 0.4 of adhesive, solvent, modified PVC paste resin and mildew preventive, wherein the solvent is ethyl acetate, and the mildew preventive is tributyltin chloride;

the adhesive comprises the following raw materials: furfuryl ketone resin, branched polyethyleneimine, polyglycerol ricinoleate, trimethylolpropane, polytetrafluoroethylene and monoethanolamine; the contents of the components are shown in the following table 1; the preparation method of the adhesive comprises the following steps:

firstly, mixing polyglycerol polyricinoleate branched-chain polyethyleneimine and trimethylolpropane, heating to 70 ℃, stirring for reaction for 1h, then preserving heat, adding furfurone resin, then adding a mixture of polytetrafluoroethylene and monoethanolamine, and continuously stirring for 30min to obtain an adhesive;

the preparation method of the modified PVC paste resin comprises the following steps:

taking PVC paste resin and glucomannan with the weight portion ratio of 10: 7; firstly, mixing PVC paste resin and tetrahydrofuran which is 1.5 times of the weight of the PVC paste resin to ensure that the system is acidic, then adding glucomannan while stirring, and reacting for 1h at the temperature of 60 ℃.

S3, final forming; curing at 90 ℃ for 8min, cutting into required length, and finally grinding and forming to obtain the fiber pen point.

The contents of the components are shown in table 1 below.

Example 2

The application discloses a nylon fiber pen point and a preparation method thereof, wherein the preparation method comprises the following steps:

s1, primarily shaping; sequentially stranding and shaping nylon fibers to obtain nylon fiber bundles;

s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 50mm, and the glue dipping time is 40 s;

firstly, mixing polyglycerol polyricinoleate branched-chain polyethyleneimine and trimethylolpropane, heating to 80 ℃, stirring to react for 1.5h, then preserving heat, adding furfurone resin, then adding a mixture of polytetrafluoroethylene and monoethanolamine, and continuously stirring for 40min to obtain an adhesive;

the preparation method of the modified PVC paste resin comprises the following steps:

taking PVC paste resin and glucomannan with the weight portion ratio of 10: 7; firstly, mixing the PVC paste resin with tetrahydrofuran which is 1.5 times of the weight of the PVC paste resin to ensure that the system is acidic, then adding glucomannan while stirring, and reacting for 1.2h at 70 ℃.

S3, final forming; curing at 110 ℃ for 10min, cutting into required length, and finally grinding and forming to obtain the fiber pen point.

Example 3

The application discloses a nylon fiber pen point and a preparation method thereof, wherein the preparation method comprises the following steps:

s1, primarily shaping; sequentially stranding and shaping nylon fibers to obtain nylon fiber bundles;

s2, gum dipping; drawing and immersing a nylon fiber bundle in a glue tank with glue solution, wherein the thickness of the glue solution is 40mm, and the glue dipping time is 35 s;

firstly, mixing polyglycerol polyricinoleate branched-chain polyethyleneimine and trimethylolpropane, heating to 75 ℃, stirring to react for 1.2h, then preserving heat, adding furfurone resin, then adding a mixture of polytetrafluoroethylene and monoethanolamine, and continuously stirring for 35min to obtain an adhesive;

the preparation method of the modified PVC paste resin comprises the following steps:

S3, final forming; curing at 100 ℃ for 9min, cutting into required length, and finally grinding and forming to obtain the fiber pen point.

Example 4

The difference from example 1 is that the raw materials of the adhesive include furfuryl ketone resin, branched polyethyleneimine, polyglycerol polyricinoleate and trimethylolpropane, and the content of each component is shown in table 1 below.

The preparation method of the adhesive comprises the following steps: firstly, mixing polyglycerol polyricinoleate branched-chain polyethyleneimine and trimethylolpropane, heating to 70 ℃, stirring and reacting for 1h, then preserving heat, adding furfurone resin, and continuing stirring for 30min to obtain the adhesive.

Example 5

The difference from example 4 is that the ratio of branched polyethyleneimine to polyglycerol polyricinoleate in the raw materials of the adhesive is 3:1, and the content of each component of the adhesive is shown in table 1 below.

Example 6

The difference from the embodiment 1 is that the glue solution comprises the components of an adhesive, a solvent and a mildew preventive; the adhesive comprises the following raw materials: the contents of the components of the furfuryl ketone resin, the branched polyethyleneimine, the polyglycerol polyricinoleate and the trimethylolpropane are shown in the following table 2.

Example 7

The difference from example 6 is that the branched polyethylenimine is replaced by 1-allylamine, the contents of the components being shown in Table 2 below.

Example 8

The difference from example 6 is that polyglycerol polyricinoleate is replaced by glyceride, and the content of each component is shown in the following table 2.

Example 9

The difference from the embodiment 1 is that the glue solution comprises the components of an adhesive, a solvent and a mildew preventive; the adhesive comprises the following raw materials: furfuryl ketone resin, polytetrafluoroethylene and monoethanolamine, the contents of each component are shown in table 2 below.

Example 10

The difference from example 9 is that the polytetrafluoroethylene was replaced with styrene and the contents of the components are shown in table 2 below.

Example 11

The difference from example 9 is that monoethanolamine was replaced with ethylene glycol and the contents of the respective components are shown in table 2 below.

Example 12

The difference from example 4 is that the composition of the glue solution does not comprise a modified PVC paste resin.

Example 13

The difference from example 4 is that the modified PVC paste resin was replaced with a PVC paste resin.

Example 14

The difference from example 4 is that glucomannan is replaced by polysiloxane.

Comparative example

Comparative example 1

Example 1 of chinese patent publication No. CN111361330A was selected as comparative example 1.

Comparative example 2

The difference from example 1 is that the adhesive is an acrylic adhesive.

Comparative example 3

The difference from example 1 is that the modified PVC paste resin was replaced with a PVC paste resin.

TABLE 1 ingredient content tables for examples 1-5

	Example 1	Example 2	Example 3	Example 4	Example 5
						Furfuryl ketone resin	40	50	45	40	40
Branched polyethylenimine	8	10	9	8	9
						Polyglycerol polyricinoleate	2	5	4	2	3
Trimethylolpropane	0.2	0.3	0.3	0.2	0.2
						Polytetrafluoroethylene	0.4	0.5	0.4	/	/
Monoethanolamine	1	2	2	/	/

TABLE 2 ingredient content tables for examples 6-11

	Example 6	Example 7	Example 8	Example 9	Example 10	Example 11
							Furfuryl ketone resin	40	40	40	40	40	40
Branched polyethyleneimine/1-allylamine	8	8	8	/	8	8
							Polyglycerol ricinoleate/glycerides	2	2	2	/	2	2
Trimethylolpropane	0.2	0.2	0.2	/	0.2	0.2
							Polytetrafluoroethylene/styrene	/	0.4	0.4	0.4	0.4	0.4
Monoethanolamine/ethylene glycol	/	1	1	1	1	1

Performance test

A nylon fiber bundle having a length of 2cm and a diameter of 5mm was selected as a sample, and the sample was obtained by treating the nylon fiber bundle by the processes of examples and comparative examples.

(1) Testing the tensile strength; measuring the tensile strength by stretching the sample to break with a tensile testing machine, wherein the moving speed of the driving clamp of the testing machine is 500 mm/min; the greater the tensile strength, the better the toughness.

(2) Testing the peel strength; testing the peel strength by a Demo Xia type flex cracking tester, wherein the tensile speed is 200 mm/min; the greater the peel strength, the stronger the adhesion.

The test results are shown in table 3 below.

TABLE 3 table of results of performance test of each example and comparative example

	Tensile strength/MPa	Peeling strength/(N/25 mm)
			Example 1	17	211
Example 2	22	217
			Example 3	19	213
Example 4	12	206
			Example 5	14	208
Example 6	10	204
			Example 7	7	201
Example 8	8	202
			Example 9	5	197
Example 10	3	194
			Example 11	3	193
Example 12	9	202
			Example 13	10	203
Example 14	11	203
			Comparative example 1	9	203
Comparative example 2	12	208
			Comparative example 3	10	202

In summary, the following conclusions can be drawn:

1. according to the embodiment 1 and the embodiments 4 to 5 and the combination of the embodiment and the table 3, when the ratio of the branched polyethyleneimine to the polyglycerol polyricinoleate is 3:1, the tensile strength and the peel strength of the nylon fiber nib can be improved to a certain extent, namely, the toughness and the adhesive force of the nylon fiber nib are improved, so that the nib is not easy to disperse, and the writing is smoother.

2. As can be seen from examples 1 and 6-8 in combination with Table 3, the co-addition of branched polyethylenimine and polyglycerol polyricinoleate demonstrated a synergistic effect in improving the toughness and adhesion of nylon fiber nibs without the addition of modified PVC resin.

3. According to the embodiment 1 and the embodiments 9-11 and the combination of the table 3, the synergistic effect of the polytetrafluoroethylene and the monoethanolamine which are added together to improve the toughness and the adhesive force of the nylon fiber nib can be proved under the condition of not adding the modified PVC resin.

4. According to the embodiment 1 and the embodiments 12 to 14 and the combination of the table 3, it can be seen that the toughness and the adhesive force of the nylon fiber nib can be improved by adding the modified PVC paste resin, and the PVC paste resin modified by the glucomannan has a better improvement effect.

5. According to the example 1 and the comparative example 1 and the combination of the table 3, the nylon fiber pen point prepared by the preparation method has higher toughness and better adhesive force, the pen point is not easy to disperse, and the writing is smoother.

6. According to the embodiment 1 and the comparative examples 2-3 and the combination of the table 3, the adhesive and the modified PVC paste resin can effectively improve the toughness and the bonding force of the nylon fiber pen point, so that the pen point is not easy to disperse and the writing is smoother.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications to the present embodiment as necessary without inventive contribution after reading the present specification, but all are protected by patent law within the scope of the claims of the present application.

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