CN110295412A - A kind of fishing net drawing process - Google Patents
A kind of fishing net drawing process Download PDFInfo
- Publication number
- CN110295412A CN110295412A CN201910526782.5A CN201910526782A CN110295412A CN 110295412 A CN110295412 A CN 110295412A CN 201910526782 A CN201910526782 A CN 201910526782A CN 110295412 A CN110295412 A CN 110295412A
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- China
- Prior art keywords
- parts
- fishing net
- drawing process
- spinneret
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a kind of fishing net drawing process, the following steps are included: prepared by A, raw material: weighing 2-3 parts of foaming agent, 2-5 parts of Vulcanization accelerator TMTD by weight, in 0.2-0.3 parts of addition blenders of water repellent agent, and lytic agent dissolution is added, it is warming up to after mixing 10-15min at 70-100 DEG C, dilute hydrochloric acid is added and adjusts PH to neutrality;B, ingredient: weighed by weight 40-45 parts of polyester fiber, 20-24 parts of hot melt adhesive, 3-7 parts of glass microballoon, 2-5 parts of titanium dioxide, 2-5 parts of nano-graphite, 15-18 parts of distilled water be warming up at 120-130 DEG C and stir molten condition.The fishing net drawing process, by having foaming agent, promotor, water repellent agent, polyester fiber, hot melt adhesive, cooperation, so that manufactured fishing net is with not only facilitating processing but also have enhancing fishing net toughness, the addition of water repellent agent, which makes fishing net in use, makes the excess moisture absorbed in fishing net cooling procedure, the intensity of fishing net is enhanced, the addition of nano-graphite and glass microballoon is so that manufactured fishing net wearability is more preferable.
Description
Technical field
The present invention relates to fishing net manufacturing technology field, specially a kind of fishing net drawing process.
Background technique
With the development of culture fishery, an important tool of the fishing net as aquaculture and fishing has also been obtained fast
The development of speed, with the development of fishery, the object of fishing and hunting is more than fish, and the tool of fishing also grows with each passing hour.Modern fishing net is main
Using polyethylene, the raw materials such as nylon are processed, but fishing net wire drawing process when, the monofilament of high temperature can return when traction
It breaks, influences the progress of wire drawing, delay production.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of fishing net drawing process, have the strong advantage of toughness.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of fishing net drawing process, comprising the following steps:
A, prepared by raw material: weighing 2-3 parts of foaming agent, 2-5 parts of Vulcanization accelerator TMTD, 0.2-0.3 parts of water repellent agent additions by weight
In blender, and lytic agent dissolution is added, is warming up to after mixing 10-15min at 70-100 DEG C, dilute hydrochloric acid is added and adjusts PH into
Property;
B, ingredient: 40-45 parts of polyester fiber, 20-24 parts of hot melt adhesive, 3-7 parts of glass microballoon, titanium dioxide have been weighed by weight
2-5 parts, 2-5 parts of nano-graphite, 15-18 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 80-100 parts in extruder feed hopper simultaneously using charging absorption pump
Nylon chips are 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, are infused
Enter extruder hopper;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
Preferably, in step, water repellent agent is carbodiimides.
Preferably, in step, lytic agent is dimethylformamide.
Preferably, in step C, in step C, extruder first segment temperature is 180-186 DEG C, second segment temperature is
185-192 DEG C, third section temperature be 190-210 DEG C, die head temperature is 200-250 DEG C.
Preferably, in step D, the spin rate of spinneret machine is 230-260m/min.
(3) beneficial effect
The present invention provides a kind of fishing net drawing process, have it is following the utility model has the advantages that
The fishing net drawing process, by having foaming agent, promotor, water repellent agent, polyester fiber, hot melt adhesive, cooperation, so that manufactured
For fishing net with not only facilitating processing but also having enhancing fishing net toughness, the addition of water repellent agent makes fishing net in use
The excess moisture absorbed in fishing net cooling procedure enhances the intensity of fishing net, and the addition of nano-graphite and glass microballoon is so that system
At fishing net wearability it is more preferable, prevent in the long-term use, fishing net phase mutual friction so that fishing net monofilament surface wear, system
At fishing net intensity it is high, good toughness, wearability is good, and the addition of titanium dioxide, the degree of staining of fishing net is increased, so that fishing net is more
Transparence.
Specific embodiment
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one
The present invention provides a kind of technical solution: a kind of fishing net drawing process, comprising the following steps:
A, prepared by raw material: 2 parts of foaming agent, 2 parts of Vulcanization accelerator TMTD are weighed by weight, in 0.2 part of addition blender of water repellent agent,
Water repellent agent is carbodiimides, and lytic agent dissolution is added, and lytic agent is dimethylformamide, is warming up to 70 lower mixing 10-15min
Afterwards, dilute hydrochloric acid is added and adjusts PH to neutrality;
B, ingredient: 40 parts of polyester fiber has been weighed by weight, 20 parts of hot melt adhesive, 3-7 parts of glass microballoon, 2 parts of titanium dioxide, has been received
2 parts of meter Shi Mo, 15 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 80 parts of nylon in extruder feed hopper simultaneously using charging absorption pump
Slice is 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, and injection is squeezed
Machine hopper out, extruder first segment temperature is 180-186 DEG C, second segment temperature is 185-192 DEG C, third section temperature is 190-
210 DEG C, die head temperature be 200-250 DEG C;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, the spin rate of spinneret machine
For 230-260m/min, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
Embodiment two
A kind of fishing net drawing process, comprising the following steps:
A, prepared by raw material: 3 parts of foaming agent, 5 parts of Vulcanization accelerator TMTD are weighed by weight, in 0.3 part of addition blender of water repellent agent,
Water repellent agent is carbodiimides, and lytic agent dissolution is added, and lytic agent is dimethylformamide, is warming up at 100 DEG C and mixes 10-
After 15min, dilute hydrochloric acid is added and adjusts PH to neutrality;
B, ingredient: 45 parts of polyester fiber, 24 parts of hot melt adhesive, 7 parts of glass microballoon, titanium dioxide 5 part, nanometer have been weighed by weight
5 parts of graphite, 18 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 100 parts of nylon in extruder feed hopper simultaneously using charging absorption pump
Slice is 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, and injection is squeezed
Machine hopper out, extruder first segment temperature is 180-186 DEG C, second segment temperature is 185-192 DEG C, third section temperature is 190-
210 DEG C, die head temperature be 200-250 DEG C;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, the spin rate of spinneret machine
For 230-260m/min, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
Embodiment three
A kind of fishing net drawing process, comprising the following steps:
A, prepared by raw material: 3 parts of foaming agent, 3 parts of Vulcanization accelerator TMTD are weighed by weight, in 0.2 part of addition blender of water repellent agent,
Water repellent agent is carbodiimides, and lytic agent dissolution is added, and lytic agent is dimethylformamide, is warming up at 90 DEG C and mixes 10-
After 15min, dilute hydrochloric acid is added and adjusts PH to neutrality;
B, ingredient: 43 parts of polyester fiber, 23 parts of hot melt adhesive, 5 parts of glass microballoon, titanium dioxide 4 part, nanometer have been weighed by weight
4 parts of graphite, 16 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 90 parts of nylon in extruder feed hopper simultaneously using charging absorption pump
Slice is 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, and injection is squeezed
Machine hopper out, extruder first segment temperature is 180-186 DEG C, second segment temperature is 185-192 DEG C, third section temperature is 190-
210 DEG C, die head temperature be 200-250 DEG C;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, the spin rate of spinneret machine
For 230-260m/min, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
Example IV
A, prepared by raw material: 3 parts of foaming agent, 5 parts of Vulcanization accelerator TMTD are weighed by weight, in 0.3 part of addition blender of water repellent agent,
Water repellent agent is carbodiimides, and lytic agent dissolution is added, and lytic agent is dimethylformamide, is warming up at 100 DEG C and mixes 10-
After 15min, dilute hydrochloric acid is added and adjusts PH to neutrality;
B, ingredient: 45 parts of polyester fiber, 24 parts of hot melt adhesive, 7 parts of glass microballoon, titanium dioxide 5 part, nanometer have been weighed by weight
5 parts of graphite, 18 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 100 parts of nylon in extruder feed hopper simultaneously using charging absorption pump
Slice is 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, and injection is squeezed
Machine hopper out, extruder first segment temperature is 180-186 DEG C, second segment temperature is 185-192 DEG C, third section temperature is 190-
210 DEG C, die head temperature be 200-250 DEG C;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, the spin rate of spinneret machine
For 230-260m/min, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
The fishing net drawing process, by having foaming agent, promotor, water repellent agent, polyester fiber, hot melt adhesive, cooperation, so that system
At fishing net with not only facilitating processing but also there is enhancing fishing net toughness, the addition of water repellent agent makes fishing net in use process
In make the excess moisture absorbed in fishing net cooling procedure, enhance the intensity of fishing net, the addition of nano-graphite and glass microballoon makes
Fishing net wearability made of obtaining is more preferable, prevents in the long-term use, fishing net phase mutual friction, so that fishing net monofilament surface is ground
Damage, manufactured fishing net intensity is high, and good toughness, wearability is good, and the addition of titanium dioxide, the degree of staining of fishing net is increased, so that fishing
Net more transparence.
It should be noted that the terms "include", "comprise" or its any other variant are intended to non-row herein
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of fishing net drawing process, it is characterised in that: the following steps are included:
A, prepared by raw material: weighing 2-3 parts of foaming agent, 2-5 parts of Vulcanization accelerator TMTD, 0.2-0.3 parts of water repellent agent additions by weight
In blender, and lytic agent dissolution is added, is warming up to after mixing 10-15min at 70-100 DEG C, dilute hydrochloric acid is added and adjusts PH into
Property;
B, ingredient: 40-45 parts of polyester fiber, 20-24 parts of hot melt adhesive, 3-7 parts of glass microballoon, titanium dioxide have been weighed by weight
2-5 parts, 2-5 parts of nano-graphite, 15-18 parts of distilled water be warming up at 120-130 DEG C and stir molten condition;
C, it squeezes out: mixture obtained in step B being pumped into 80-100 parts in extruder feed hopper simultaneously using charging absorption pump
Nylon chips are 60-100rpm in revolving speed, and heating melting in the screw machine press that temperature is 220-250 DEG C obtains fusant, are infused
Enter extruder hopper;
D, spinneret: it will pass through in step C in the raw material addition spinneret machine that extruder squeezes out and carry out spinneret, then carry out drawing-off arrangement;
E, cooling: netting twine passes through cooling in 0-20 DEG C of cold water when drawing-off arranges;
F, it winds: being dried at 66-72 DEG C, be then wound using take-up roll, obtain monofilament, obtain fishing by establishment
Net.
2. a kind of fishing net drawing process according to claim 1, it is characterised in that: in step, water repellent agent is carbonization two
Imines.
3. a kind of fishing net drawing process according to claim 1, it is characterised in that: in step, lytic agent is dimethyl
Amide.
4. a kind of fishing net drawing process according to claim 1, it is characterised in that: in step C, extruder first segment temperature
Degree is 180-186 DEG C, second segment temperature is 185-192 DEG C, third section temperature is 190-210 DEG C, die head temperature 200-250
℃。
5. a kind of fishing net drawing process according to claim 1, it is characterised in that: in step D, the spinneret speed of spinneret machine
Rate is 230-260m/min.
Priority Applications (1)
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CN201910526782.5A CN110295412A (en) | 2019-06-18 | 2019-06-18 | A kind of fishing net drawing process |
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CN201910526782.5A CN110295412A (en) | 2019-06-18 | 2019-06-18 | A kind of fishing net drawing process |
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CN110295412A true CN110295412A (en) | 2019-10-01 |
Family
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CN201910526782.5A Withdrawn CN110295412A (en) | 2019-06-18 | 2019-06-18 | A kind of fishing net drawing process |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115404168A (en) * | 2022-11-01 | 2022-11-29 | 山东滨州八匹马塑料化纤制品有限公司 | Marine microalgae cultivation method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103572502A (en) * | 2013-10-22 | 2014-02-12 | 王庆昭 | Preparation method of ultrahigh molecular weight polyethylene monofilament knotted fishing net |
CN104562249A (en) * | 2014-06-30 | 2015-04-29 | 巢湖市翔宇渔具有限公司 | Fishing net wire molding process |
CN105837964A (en) * | 2016-04-16 | 2016-08-10 | 巢湖市渔郎渔具有限公司 | High-strength long-life fishing net |
CN107201029A (en) * | 2017-05-27 | 2017-09-26 | 巢湖市强力渔业有限责任公司 | A kind of fishing net of high intensity |
CN107419362A (en) * | 2017-05-12 | 2017-12-01 | 巢湖市荷花渔网有限公司 | A kind of ageing-resistant fishing net |
CN108823677A (en) * | 2018-07-02 | 2018-11-16 | 巢湖市天宇渔具有限公司 | A kind of processing method of the heat resistant type fishing net wire drawing of good toughness |
-
2019
- 2019-06-18 CN CN201910526782.5A patent/CN110295412A/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103572502A (en) * | 2013-10-22 | 2014-02-12 | 王庆昭 | Preparation method of ultrahigh molecular weight polyethylene monofilament knotted fishing net |
CN104562249A (en) * | 2014-06-30 | 2015-04-29 | 巢湖市翔宇渔具有限公司 | Fishing net wire molding process |
CN105837964A (en) * | 2016-04-16 | 2016-08-10 | 巢湖市渔郎渔具有限公司 | High-strength long-life fishing net |
CN107419362A (en) * | 2017-05-12 | 2017-12-01 | 巢湖市荷花渔网有限公司 | A kind of ageing-resistant fishing net |
CN107201029A (en) * | 2017-05-27 | 2017-09-26 | 巢湖市强力渔业有限责任公司 | A kind of fishing net of high intensity |
CN108823677A (en) * | 2018-07-02 | 2018-11-16 | 巢湖市天宇渔具有限公司 | A kind of processing method of the heat resistant type fishing net wire drawing of good toughness |
Non-Patent Citations (1)
Title |
---|
聂春辉等: "《电影机械模型制作》", 31 July 2015, 北京联合出版公司 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115404168A (en) * | 2022-11-01 | 2022-11-29 | 山东滨州八匹马塑料化纤制品有限公司 | Marine microalgae cultivation method |
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Application publication date: 20191001 |