阅读说明：本技术 一种增韧塑料编织袋的制备方法 (A kind of preparation method of toughened plastics woven bag ) 是由 张爱军 张峰 陈颜君 于 2019-09-09 设计创作，主要内容包括：本发明提供一种增韧塑料编织袋的制备方法,包括如下步骤：S1：将聚丙烯原料、填充母料、增韧剂干燥后投入挤出机,经过模头成型挤出为薄膜,经过牵引制备出聚丙烯成品扁丝；S2在圆织机上织造出编织筒布卷,然后按照规定裁剪；S3：将热熔胶黏层原料和增韧层原料投入双层共挤吹塑薄膜机中加热、熔融后吹塑成圆筒形的两层层状膜的袋体,其中外层为热熔胶黏层,内层增韧层；S4：将圆筒形编织袋套接在内覆膜袋体上；S5：将套上内覆膜的编织袋送入加热烘箱,热熔胶黏层受热熔融,贴合在塑料编织袋内部,压合；S6：再经过裁剪、印刷、缝纫等工序,制备成成品塑料编织袋。本发明提供一种抗拉伸撕裂性能强、韧性高、内覆膜粘接牢固的塑料编织袋。(The present invention provides a kind of preparation method of toughened plastics woven bag, includes the following steps: S1: will put into extruder after pp material, filling master batch, toughener drying, is extruded as film by die head molding, prepares polypropylene finished product flat filament by traction；S2 weaves braiding cylinder yardage roll on circular weaving machine, then cuts according to the rules；S3: the bag body for being blow molded into columnar two layers of laminar films in adhesive layer raw material and toughening layer raw material investment double-layer coextrusion inflation film machine after heating, melting will be heated, wherein outer layer is hot melt adhesive layer, internal layer toughening layer；S4: cylinder-shaped woven bag is socketed in interior overlay film bag body；S5: the woven bag for putting on interior overlay film is sent into heated oven, adhesive layer melted by heating is heated, is fitted in inside Polywoven Bag, press；S6: using processes such as cutting, printing, sewing, it is prepared into finished plastic woven bag.The present invention provides that a kind of stretch-proof tear resistance is strong, toughness is high, interior overlay film is bonded firm Polywoven Bag.)

1. a kind of preparation method of toughened plastics woven bag, which comprises the steps of:

S1: it prepares flat filament: extruder will be put into after pp material, filling master batch, toughener drying, form and squeeze out by die head For film, then after water is cooling, polypropylene film is cut, hot gas spring and thermal finalization, system are carried out to polypropylene flat filament of coming into being Standby polypropylene finished product flat filament out；

S2: braiding: polypropylene finished product flat filament is warp and weft, braiding cylinder yardage roll is woven on circular weaving machine, then according to rule It is fixed to cut；

S3: overlay film bag body in preparing: will add in hot melt adhesive layer raw material and toughening layer raw material investment double-layer coextrusion inflation film machine The bag body of columnar two layers of laminar films is blow molded into after heat, melting, wherein outer layer is hot melt adhesive layer, internal layer toughening layer；

S4: it puts on interior overlay film: cylinder-shaped woven bag is socketed in interior overlay film bag body；

S5: heating hot melt: the woven bag for putting on interior overlay film is sent into heated oven, adhesive layer melted by heating is heated, is fitted in modeling Expect inside woven bag, then produces the Polywoven Bag with interior overlay film through pressing；

S6: it prepares finished product: using processes such as cutting, printing, sewing, being prepared into the Polywoven Bag with color printing.

2. the preparation method of toughened plastics woven bag according to claim 1, which is characterized in that the filling master batch is to receive Rice calcium carbonate.

3. the preparation method of toughened plastics woven bag according to claim 1, which is characterized in that the toughener is acetic acid Butoxyethyl.

4. the preparation method of toughened plastics woven bag according to claim 1, which is characterized in that according to parts by weight, step Hot melt adhesive layer raw material includes following components and proportion in rapid S3: 50-60 parts of EVA resin, 10-15 parts of butyl acrylate, propylene Sour hydroxypropyl acrylate 5-10 parts, 1-5 parts of crosslinking agent.

5. the preparation method of toughened plastics woven bag according to claim 4, which is characterized in that further include methacrylic acid 3-8 parts of ethylhexyl.

6. the preparation method of toughened plastics woven bag according to claim 4, which is characterized in that the crosslinking agent is methyl Glycidyl acrylate.

7. the preparation method of toughened plastics woven bag according to claim 1, which is characterized in that according to parts by weight, step Toughening layer raw material includes following components and proportion in rapid S3: 50-60 parts of polyethylene, 3-8 parts of additive, 1-5 parts of filler material.

8. the preparation method of toughened plastics woven bag according to claim 7, which is characterized in that additive is tetrabutyl benzene Phenolic hydroxyl group benzoic ether.

Technical field

The present invention relates to Polywoven Bag technical field of producing, in particular to a kind of preparation of toughened plastics woven bag Method.

Background technique

Polywoven Bag is widely used in the fields such as cement, fertilizer, chemical industry, pipeline, monofilament, wire and cable, daily necessities Product packaging.But Polywoven Bag in winter low temperature when, be easy to appear harden, embrittlement, demoulding, peeling, fracture the problems such as, In When summer high temperature, ultraviolet light penetration power are strong, it is easy to appear aging, burn into poor toughness, the problems such as intensity is low.

Therefore need to produce that a kind of stretch-proof tear resistance is strong, toughness is high, interior overlay film is bonded firm Polywoven Bag.

Summary of the invention

That the purpose of the present invention is to provide a kind of stretch-proof tear resistances is strong, toughness is high, interior overlay film is bonded firm plastics Woven bag.

Above-mentioned technical purpose of the invention has the technical scheme that a kind of toughened plastics woven bag Preparation method includes the following steps:

S1: it prepares flat filament: extruder will be put into after pp material, filling master batch, toughener drying, formed by die head It is extruded as film, then after water is cooling, cuts polypropylene film, hot gas spring and Re Ding are carried out to polypropylene flat filament of coming into being Type prepares polypropylene finished product flat filament；

S2: braiding: polypropylene finished product flat filament is warp and weft, and braiding cylinder yardage roll is woven on circular weaving machine, is then pressed It is cut according to regulation；

S3: hot melt adhesive layer raw material and toughening layer raw material overlay film bag body in preparing: are put into double-layer coextrusion inflation film machine The bag body of columnar two layers of laminar films is blow molded into after middle heating, melting, wherein outer layer is hot melt adhesive layer, internal layer toughening layer；

S4: it puts on interior overlay film: cylinder-shaped woven bag is socketed in interior overlay film bag body；

S5: heating hot melt: the woven bag for putting on interior overlay film is sent into heated oven, heats adhesive layer melted by heating, fitting The Polywoven Bag with interior overlay film is produced inside Polywoven Bag, then through pressing；

S6: it prepares finished product: using processes such as cutting, printing, sewing, being prepared into the Polywoven Bag with color printing.

As the further setting of the present invention, filling master batch is nanometer calcium carbonate.

As the further setting of the present invention, toughener is butoxy acetic acid ethyl ester.

As the further setting of the present invention, according to parts by weight, in the step S3 heat adhesive layer raw material include with Lower component and proportion: 50-60 parts of EVA resin, 10-15 parts of butyl acrylate, 5-10 parts of hydroxypropyl acrylate, 1-5 parts of crosslinking agent.

It further include 3-8 parts of ethylhexyl methacrylate as the further setting of the present invention.

As the further setting of the present invention, crosslinking agent is glycidyl methacrylate.

As the further setting of the present invention, according to parts by weight, toughening layer raw material includes with the following group in the step S3 Divide and match: 50-60 parts of polyethylene, 3-8 parts of additive, 1-5 parts of filler material.

As the further setting of the present invention, additive is tetrabutyl phenolic hydroxy benzoic ether.

The beneficial effects of the present invention are:

1. the present invention use toughener butoxy acetic acid ethyl ester, elastomer as stress concentrate central source, cause crazing with The generation of shear band changes fracture, the failure mode of material, can absorb big energy during crazing generation, branching, thus The ability for resisting external force is enhanced, the toughness of Polywoven Bag is improved.

2. the present invention is using ethylhexyl methacrylate as gluing activating agent, ethylhexyl methacrylate molecule is handed over Connection point increases, with-COOCH₃The probability for crosslinking reaction becomes larger, so that-COOCH₃Ratio reduces, and hydrophily decline, dispersion is made With decrease, also make macromolecular easy entanglement together, form fine and close reticular structure, cross-linked structure is intertwined, and improves The peel strength of interior overlay film, improves the stability that interior overlay film is attached on Polywoven Bag.

3. the present invention uses additive tetrabutyl phenolic hydroxy benzoic ether, phenolic hydroxyl group can be introduced into polyvinyl resin, The ratio of the soft segment of overlay film in increasing, to improve the amount of deflection of interior overlay film, the film forming of overlay film improves simultaneously from energy in raising The toughness of interior overlay film scratches interior overlay film when preventing interior overlay film from containing pointed object.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with specific embodiment.Obviously, described Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ability Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to guarantor of the present invention The range of shield.