1. The formula of the anti-skid plastic woven bag is characterized in that: the composite material consists of the following components in percentage by mass:

PP polypropylene: 78-82%;

phenolic resin: 5 to 8 percent;

calcium carbonate as filler: 6 to 8 percent;

PP powder preparation: 4 to 6 percent;

molybdenum disulfide: 1 to 2 percent.

2. The formula of the anti-slip plastic woven bag according to claim 1, wherein: the PP polypropylene accounts for 80% by mass; the mass percent of the phenolic resin is 7 percent; the mass percentage of the filler calcium carbonate is 7 percent; PP powder preparation: 5 percent; molybdenum disulfide: 1 percent.

3. A preparation method of an anti-skid plastic woven bag is characterized by comprising the following steps: the preparation method comprises the following steps:

s1: mixing raw materials, weighing PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide according to the proportion in the formula, putting the weighed PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide into a drying stirrer for drying and stirring and mixing;

s2: drawing and forming, namely putting the mixed raw material of S1 into a drawing machine for drawing and forming;

s3: cooling and shrinking, namely putting the wire formed by drawing S2 into cold water at the temperature of 20-25 ℃ for shrinkage and shaping;

s4, weaving, namely weaving the silk threads cooled and shrunk in the S3 into woven bags by a circular weaving machine;

and S5, coating an anti-slip agent on the surface of the woven bag woven and molded in the S4 mode through a roller feeding type printer.

4. The method for preparing the antiskid plastic woven bag according to claim 3, wherein the method comprises the following steps: the shrinkage of the yarn in S3 was 0.2%.

5. The method for preparing the antiskid plastic woven bag according to claim 3 or 4, wherein: the anti-slip agent comprises the following components in parts by weight:

100 parts of chlorosulfonated polyethylene; 2-5 parts of chlorinated polypropylene; modified rosin resin: 25-28 parts; plasticizer: 10-15 parts; filling: 30-34 parts; antioxidant: 0.05-0.1 part; solvent: 180 parts.

6. The preparation method of the antiskid plastic woven bag according to claim 5, wherein: the filler is a mixture of calcium carbonate and antimony dioxide, and the mixing ratio of the calcium carbonate to the antimony dioxide is 20: 1.

7. the preparation method of the antiskid plastic woven bag according to claim 5, wherein: the antioxidant is BHT.

8. The preparation method of the antiskid plastic woven bag according to claim 5, wherein: the solvent is a mixture of xylene and cycloethanone, and the mixing ratio of the xylene to the cycloethanone is 1: 2.

Background

The main raw material components of the plastic woven bag are polypropylene, polyethylene and additive master batch. The method is widely applied to the fields of cement, fertilizer, chemical industry and the like at present.

The existing woven bags are poor in anti-skid performance, and often slide due to too low friction coefficient between the bags when the woven bags are packaged and shipped, and the high-folded woven bags filled with goods are prone to sliding, so that great potential safety hazards exist. In order to solve the problem, in the prior art, a friction increasing layer is compounded on the surface of a woven bag to increase friction, the solution is temporary and permanent, the production cost is increased unnecessarily, and the increased friction is very limited. In addition, the existing woven bag processing technology generally adopts film blowing, wire drawing, printing, cutting, sewing and the like, and has complex process and high cost.

Disclosure of Invention

Aiming at the defects in the background art, the invention provides a formula and a preparation method of an anti-skid plastic woven bag.

The technical scheme adopted by the invention is as follows: the formula of the anti-skid plastic woven bag comprises the following components in percentage by mass:

PP polypropylene: 78-82%;

phenolic resin: 5 to 8 percent;

calcium carbonate as filler: 6 to 8 percent;

PP powder preparation: 4 to 6 percent;

molybdenum disulfide: 1 to 2 percent.

Further, the PP polypropylene accounts for 80% by mass; the mass percent of the phenolic resin is 7 percent; the mass percentage of the filler calcium carbonate is 7 percent; PP powder preparation: 5 percent; molybdenum disulfide: 1 percent.

A preparation method of an anti-slip plastic woven bag comprises the following steps:

s1: mixing raw materials, weighing PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide according to the proportion in the formula, putting the weighed PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide into a drying stirrer for drying and stirring and mixing;

s2: drawing and forming, namely putting the mixed raw material of S1 into a drawing machine for drawing and forming;

s3: cooling and shrinking, namely putting the wire formed by drawing S2 into cold water at the temperature of 20-25 ℃ for shrinkage and shaping;

s4, weaving, namely weaving the silk threads cooled and shrunk in the S3 into woven bags by a circular weaving machine;

and S5, coating an anti-slip agent on the surface of the woven bag woven and molded in the S4 mode through a roller feeding type printer.

Further, the shrinkage of the filament in S3 was 0.2%.

Further, the weight ratio of the components of the anti-slip agent is as follows:

100 parts of chlorosulfonated polyethylene; 2-5 parts of chlorinated polypropylene; modified rosin resin: 25-28 parts; plasticizer: 10-15 parts; filling: 30-34 parts; antioxidant: 0.05-0.1 part; solvent: 180 parts.

Further, the filler is a mixture of calcium carbonate and antimony dioxide, and the mixing ratio of the calcium carbonate to the antimony dioxide is 20: 1.

further, the antioxidant is BHT.

Further, the solvent is a mixture of xylene and cycloethanone, and the mixing ratio of the xylene to the cycloethanone is 1: 2.

the invention has the beneficial effects that:

1. the anti-skid property of the woven bag is improved by changing the formula, the problem of poor anti-skid capability of the woven bag is solved from the source, the anti-skid effect in stacking is obviously improved, and the potential safety hazard caused by sliding the bag in the stacking process is avoided.

2. The anti-slip coating is coated on the surface of the woven bag, so that the roughness of the surface of the woven bag is further improved, the anti-slip performance is improved, and the potential safety hazard caused by slipping when the woven bags are stacked is avoided.

3. The outer layer of braided bag adopts chlorosulfonated polyethylene as the substrate to add chlorinated polypropylene wherein, not only the adhesion is strong, is difficult for droing, has better heat resistance moreover, has increased outer heat-resisting ability and stability of braided bag when improving braided bag surface wearability, improves life.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

the formula of the anti-skid plastic woven bag comprises the following components in percentage by mass:

PP polypropylene: 80 percent;

phenolic resin: 7 percent;

calcium carbonate as filler: 7 percent;

PP powder preparation: 5 percent;

molybdenum disulfide: 1 percent.

A preparation method of an anti-slip plastic woven bag comprises the following steps:

s1: mixing raw materials, weighing PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide according to the proportion in the formula, putting the weighed PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide into a drying stirrer for drying and stirring and mixing;

s2: drawing and forming, namely putting the mixed raw material of S1 into a drawing machine for drawing and forming;

s3: cooling and shrinking, namely putting the wire formed by drawing S2 into cold water at 23 ℃ for shrinkage and shaping;

s4, weaving, namely weaving the silk threads cooled and shrunk in the S3 into woven bags by a circular weaving machine;

and S5, coating an anti-slip agent on the surface of the woven bag woven and molded in the S4 mode through a roller feeding type printer.

Further, the shrinkage of the filament in S3 was 0.2%.

Further, the weight ratio of the components of the anti-slip agent is as follows:

100 parts of chlorosulfonated polyethylene; 3 parts of chlorinated polypropylene; modified rosin resin: 26 parts of (1); plasticizer: 13 parts; filling: 32 parts of (1); antioxidant: 0.07 part; solvent: 180 parts.

Further, the filler is a mixture of calcium carbonate and antimony dioxide, and the mixing ratio of the calcium carbonate to the antimony dioxide is 20: 1.

further, the antioxidant is BHT.

Further, the solvent is a mixture of xylene and cycloethanone, and the mixing ratio of the xylene to the cycloethanone is 1: 2.

example 2:

the formula of the anti-skid plastic woven bag comprises the following components in percentage by mass:

PP polypropylene: 78 percent;

phenolic resin: 8 percent;

calcium carbonate as filler: 8 percent;

PP powder preparation: 6 percent;

molybdenum disulfide: 1 percent.

A preparation method of an anti-slip plastic woven bag comprises the following steps:

s1: mixing raw materials, weighing PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide according to the proportion in the formula, putting the weighed PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide into a drying stirrer for drying and stirring and mixing;

s2: drawing and forming, namely putting the mixed raw material of S1 into a drawing machine for drawing and forming;

s3: cooling and shrinking, namely putting the wire formed by drawing S2 into cold water at 23 ℃ for shrinkage and shaping;

s4, weaving, namely weaving the silk threads cooled and shrunk in the S3 into woven bags by a circular weaving machine;

and S5, coating an anti-slip agent on the surface of the woven bag woven and molded in the S4 mode through a roller feeding type printer.

Further, the shrinkage of the filament in S3 was 0.2%.

Further, the weight ratio of the components of the anti-slip agent is as follows:

100 parts of chlorosulfonated polyethylene; 2 parts of chlorinated polypropylene; modified rosin resin: 25 parts of (1); plasticizer: 10 parts of (A); filling: 30 parts of (1); antioxidant: 0.05 part; solvent: 180 parts.

Further, the filler is a mixture of calcium carbonate and antimony dioxide, and the mixing ratio of the calcium carbonate to the antimony dioxide is 20: 1.

further, the antioxidant is BHT.

Further, the solvent is a mixture of xylene and cycloethanone, and the mixing ratio of the xylene to the cycloethanone is 1: 2.

example 2:

the formula of the anti-skid plastic woven bag comprises the following components in percentage by mass:

PP polypropylene: 82%;

phenolic resin: 5 percent;

calcium carbonate as filler: 6 percent;

PP powder preparation: 5 percent;

molybdenum disulfide: 2 percent.

A preparation method of an anti-slip plastic woven bag comprises the following steps:

s1: mixing raw materials, weighing PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide according to the proportion in the formula, putting the weighed PP polypropylene, phenolic resin, filler calcium carbonate, PP powder and molybdenum disulfide into a drying stirrer for drying and stirring and mixing;

s2: drawing and forming, namely putting the mixed raw material of S1 into a drawing machine for drawing and forming;

s3: cooling and shrinking, namely putting the wire formed by drawing S2 into cold water at 23 ℃ for shrinkage and shaping;

s4, weaving, namely weaving the silk threads cooled and shrunk in the S3 into woven bags by a circular weaving machine;

and S5, coating an anti-slip agent on the surface of the woven bag woven and molded in the S4 mode through a roller feeding type printer.

Further, the shrinkage of the filament in S3 was 0.2%.

Further, the weight ratio of the components of the anti-slip agent is as follows:

100 parts of chlorosulfonated polyethylene; 2 parts of chlorinated polypropylene; modified rosin resin: 25 parts of (1); plasticizer: 10 parts of (A); filling: 30 parts of (1); antioxidant: 0.05 part; solvent: 180 parts.

Further, the filler is a mixture of calcium carbonate and antimony dioxide, and the mixing ratio of the calcium carbonate to the antimony dioxide is 20: 1.

further, the antioxidant is BHT.

Further, the solvent is a mixture of xylene and cycloethanone, and the mixing ratio of the xylene to the cycloethanone is 1: 2.

table 1 is a table comparing the friction properties of comparative examples and examples of the invention:

	static friction/N	Kinetic friction/N
			Example 1	42.5	22.6
Example 2	41.8	21.8
			Example 3	40.5	19.8
Comparative example	19.65	11.93

In table 1, the data of the comparative example is the average value of the woven bags with the anti-slip function in the market.

From the table one above, the stiction of the braided bag in the market is about 19N, and dynamic friction is about 11N, and the stiction of this application is about 40N, and dynamic friction is about 20N, it is obvious to adopt the formula and the method of this application make the braided bag relatively have great promotion with the frictional force of prior art's braided bag after the braided bag, can effectively solve the less problem of prior art's braided bag frictional force, show the antiskid effect when improving the pile-up, avoid putting the potential safety hazard that the in-process caused because the slip package. Compared with the existing process, the formula of the invention has the advantages of more convenient and simpler manufacture and lower cost, so that the finally obtained product has higher advancement, practicability and market competitiveness.

The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.