WO2019214056A1 - Flexible environment-friendly bulk bag and preparation method therefor - Google Patents

Abstract

A flexible environment-friendly bulk bag and a preparation method therefor. A production process for the flexible environment-friendly bulk bag comprises the following steps: material selection, wire drawing, cloth weaving, strip weaving, tailoring, sewing, acceptance check, lifting test, and packing. During use, when the volume needs to be reduced, it is only necessary to fix a first zipper tape (6) and a second zipper tape (8) by means of a first zipper slider (7) and then fix one end of each of a first horizontal strip (10) and a second cross strip (11) by means of a lock catch, in which case, the first horizontal strip (10) and the first cross strip (11) are in a tense state and the first zipper tape (6), the first zipper slider (7), and the second zipper tape (8) are not in the tense state. Similarly, the same operations are performed on the other two sides, and after the operations are completed, the volume can be reduced, and shrinkage positions after reduction can be prevented from being opened. By means of the provision of a first flame retardant layer (18) and a second flame retardant layer (23), a bulk bag body (1) is provided with good flame retardance, fire is prevented in friction, and the potential safety hazard is reduced; by means of the provision of reinforcing weft ribs (25) and reinforcing warp ribs (26), the service life of the bulk bag is elongated.

Description

Retractable environmental protection package bag and preparation method thereof Technical field

The invention relates to the technical field of container bag processing, in particular to a retractable environmental protection package bag and a preparation method thereof.

Background technique

In the process of transportation of goods, it is necessary to load and unload goods up and down, especially for some food, cement, chemical raw materials and other powder and granular product packaging bags. Loading and unloading goods often require manual handling. At present, human resources are scarce and labor costs are high, resulting in The handling cost is high, and the manual handling efficiency is low, which requires more transportation time and wastes time. At present, large-capacity flexible container bags are widely used, which are easy to use, easy to handle, and durable. It becomes a general-purpose package. However, ordinary container bags cannot be changed according to the installed capacity. It is very troublesome to change the bags of different sizes according to the items to be carried. It is very troublesome, and some environmentally-friendly container bags with telescopic structures are installed. After the material is easily opened, the structure in the contracted state is opened, which is not conducive to the user's real-time control according to the use, and the physical strength of the environmental protection container also needs to be improved, and the environmental protection container bag does not have good flame retardant characteristics. After friction, it is easy to cause spontaneous combustion, which may cause large losses and potential safety hazards.

Therefore, how to design a retractable and environmentally-friendly container bag and its preparation method has become a problem we are currently solving.

Summary of the invention

The invention provides a retractable environmental protection package bag and a preparation method thereof, so as to effectively solve the problems in the above background art.

In order to achieve the above object, the present invention provides the following technical solutions: a retractable environmental protection package bag, including a container bag body, a discharge port, a feeding port, a first sling, a second sling, a first zipper, and a first a zipper head, a second zipper strip, a first auxiliary strap, a first cross strap, a first cross strap, a third zipper strip, a second zipper head, a fourth zipper strip, a second auxiliary strap, a second strap, a second cross belt, a first flame retardant layer, an anti-aging layer, a reinforcing layer, a polypropylene core layer, a drying layer, a second flame retardant layer, a wear layer, a reinforcing weft and a reinforcing warp, the bulk bag body a middle portion of the bottom end is provided with a discharge opening, a middle portion of the top end of the container body is provided with a feeding port, and two sides of the top end of the container bag body are respectively sewn with a first lifting belt and a second lifting belt, the container bag A first zipper strip is disposed on both sides of the body, a first zipper head is disposed at a bottom end of the first zipper strip, and a second zipper strip is disposed on a side of the first zipper strip, the first zipper strip And a first auxiliary fixing belt is disposed on one side of the second zipper strip, a first cross strap is disposed at a middle portion of the auxiliary fixing strap, a first cross strap is disposed at both ends of the first auxiliary strap, and a third zipper strip is disposed on the other sides of the bulk bag body. The bottom end of the third zipper strip is provided with a second zipper head, one side of the third zipper strip is provided with a fourth zipper strip, and the third zipper strip and the fourth zipper strip are both provided with a second auxiliary a fixing belt, a second horizontal belt is disposed at a middle portion of the second auxiliary fixing belt, a second intersecting belt is disposed at both ends of the second auxiliary fixing belt, and a top layer of the bulk bag body is provided with a first flame retardant a layer, one side of the first flame-retardant layer is provided with an anti-aging layer, one side of the anti-aging layer is provided with a reinforcing layer, and one side of the reinforcing layer is provided with a polypropylene core layer, the polypropylene core One side of the layer is provided with a drying layer, one side of the drying layer is provided with a second flame-retardant layer, one side of the second flame-retardant layer is provided with a wear-resistant layer, and the inside of the reinforcing layer is provided with a reinforcing weft The ribs are provided with reinforcing ribs on one side of the reinforcing weft.

A method for preparing a retractable environmental protection package bag, comprising: the following steps:

1Material selection: The raw materials are scraps without flooring, or called chamfers, some are spouts, rubber heads, etc. The quality is also good, that is, it has not been used, in the process of processing new materials, the remaining Small corners, or raw materials that are not of good quality, with these pellets processed from wool;

2 Drawing: 1. Drying and stirring the raw and auxiliary materials required for weighing or metering. If the raw materials of the recycled material particles are mixed, the recycled material particles are first added to the dry mixer for mixing, and the temperature of the recovered material particles is controlled at about 80. °C, release the heat in the mixing box when the temperature is set, then add the new material to the drying mixer and stir the temperature to 80 °C. Add the filling masterbatch and continue to stir. The masterbatch becomes powder, and the coloring pigment should be added in time. The required coloring pigment is stirred for about 1 minute and released in the mixing box and evenly mixed with the recycled material particles; if the raw material is powder mixed with the recycled material particles, the recycled material particles are first heated to about 70 ° C to add the filler masterbatch and continue to stir. When the temperature is set, the powder placed in the mixing box and released later is stirred and evenly used;

2. Add the prepared resin to the extruder hopper;

3. Open the cooling water valve of the water tank;

4. When the extrusion temperature reaches the specified requirements, the temperature is 15 min;

3 Weaving, weaving, cutting and sewing: The drawing of the woven bag coating cloth obtained by the above method is performed by a flat knitting method, and then the cutting, cutting and sewing are sequentially performed, thereby obtaining a retractable environmental protection bag. ;

4 Acceptance: The special technical personnel will carry out the inspection and acceptance of the relevant technical parameters of the retractable environmental protection container in strict accordance with the design drawings and relevant national standards;

Hoisting test: Take a certain amount from qualified retractable environmental protection container bags, carry out the load hoisting test, and test whether the various use indicators of the retractable environmental protection container bag meet the standard. If the quality is unqualified, re-examine each Item parameters, re-production;

6 Packing: The qualified products obtained by the above-mentioned retractable environmental protection container bags are packaged by the baler after the acceptance and lifting test.

According to the above technical solution, one end of the third zipper strip and the second cross strap are fixedly connected with the second auxiliary fixing strap, and the other end is connected by the latch.

According to the above technical solution, the discharge opening is provided in a pleated structure and has a circular cross section.

According to the above technical solution, the wire drawing machine should be prepared before starting up: 1) receiving the required raw and auxiliary materials, such as polypropylene particles or powder, recycled recycled material particles, filling masterbatch, coloring pigment, filter mesh, double-sided Blades, etc., to receive special tools and other operating tools.

2) Turn on each group of electric heating switches, check whether the electric heating of each group is energized, check whether the temperature meter is normal, and repair it immediately if abnormal phenomena are found. If everything is normal, first heat the tee and die temperature, when the temperature of the three-way and the die reaches At a certain temperature, rely on the usual experience and records to master the data, then turn on the barrel heater, and finally turn on the heaters of the two ovens;

3) Adjust each heating control temperature to the required temperature; the temperature of the extruder should be changed according to the position of the sensor, the characteristics of the plastic and the proportion of the recycled material. The temperature and the temperature of the oven should be determined by the usual experience and records. The position of the sensor and the draw ratio are drawn up. In general, the draw ratio is high and rises, low and down;

4) The blade of the slitting frame is installed, and the blade is generally a double-sided blade;

5) Adjust the tension of the guide wire of the winder and the tension of the wire.

According to the above technical solution, the first flame-retardant layer 18 and the second flame-retardant layer 23 are members of an organic bromide material.

According to the above technical solution, the reinforcing weft ribs 25 and the reinforcing warp ribs 26 are members of a glass fiber material.

Compared with the prior art, the beneficial effects of the present invention: when used, when the volume needs to be reduced, the first zipper strip and the second zipper strip need only be fixed by the first zipper head, and then the first cross strap, the first cross strap One end of a cross belt is fixed by a lock, and the first cross belt and the first cross belt are in a tight state, and the first zipper strip, the first zipper head and the second zipper strip are not in a tight state, and the same reason In addition, the same operation is performed on both sides, and after completion, the volume of the container body can be reduced, and at the same time, the shrinkage of the reduced container body can be prevented from being opened, and the first flame-retardant layer and the first set are provided. The second flame-retardant layer makes the bulk bag body have better flame-retardant characteristics, prevents friction and fire, reduces safety hazards, and improves the service life of the bulk bag body by providing reinforcing weft bars and reinforcing warp bars.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a

In the drawing:

Figure 1 is a schematic view of the overall structure of the present invention;

Figure 2 is a front view of the present invention;

Figure 3 is a cross-sectional view of the present invention;

Figure 4 is a schematic view showing the structure of the reinforcing layer of the present invention;

Figure 5 is a block diagram of the production process of the present invention;

In the figure, the label: 1, the bulk bag body; 2, the discharge port; 3, the feeding port; 4, the first lifting strap; 5, the second lifting strap; 6, the first zipper strip; 7, the first zipper head; , the second zipper strip; 9, the first auxiliary fixing belt; 10, the first cross belt; 11, the first cross belt; 12, the third zipper strip; 13, the second zipper head; 14, the fourth zipper strip; , second auxiliary fixing belt; 16, second transverse belt; 17, second intersecting belt; 18, first flame-retardant layer; 19, anti-aging layer; 20, reinforcing layer; 21, polypropylene core layer; Layer; 23, second flame retardant layer; 24, wear layer; 25, reinforcing weft; 26, strengthening the warp.

detailed description

The preferred embodiments of the present invention are described with reference to the accompanying drawings, which are intended to illustrate and illustrate the invention.

Embodiments: As shown in FIG. 1-5, the present invention provides a retractable environmental protection package bag, including a container bag body 1, a discharge port 2, a feeding port 3, a first lifting belt 4, and a second lifting belt 5. a first zipper strip 6, a first zipper head 7, a second zipper strip 8, a first auxiliary strap 9, a first cross strap 10, a first cross strap 11, a third zipper strip 12, a second zipper head 13, and a first zipper strip a four-zipper strip 14, a second auxiliary fixing strip 15, a second cross-belt 16, a second cross-belt 17, a first flame-retardant layer 18, an anti-aging layer 19, a reinforcing layer 20, a polypropylene core layer 21, a drying layer 22, The second flame-retardant layer 23, the wear-resistant layer 24, the reinforcing weft ribs 25 and the reinforcing warp ribs 26, the middle portion of the bottom end of the bulk bag body 1 is provided with a discharge opening 2, and the middle portion of the top end of the container bag body 1 is provided with a feeding port 3 The first sling 4 and the second sling 5 are respectively stitched on both sides of the top end of the bulk bag body 1. The first zipper strip 6 is disposed on both sides of the container body 1, and the bottom end of the first zipper strip 6 is disposed. There is a first zipper head 7, one side of the first zipper strip 6 is provided with a second zipper strip 8, and one side of the first zipper strip 6 and the second zipper strip 8 is provided with a first auxiliary fixing strip 9, A first cross strap 10 is disposed at a middle portion of the auxiliary fixing strap 9 , and a first cross strap 11 is disposed at both ends of the first auxiliary strap 9 , and a third zipper strip 12 is disposed on the other sides of the bulk bag body 1 . The bottom end of the third zipper strip 12 is provided with a second zipper head 13, one side of the third zipper strip 12 is provided with a fourth zipper strip 14, and the third zipper strip 12 and the fourth zipper strip 14 are both provided with a second side. The auxiliary fixing belt 15 is provided with a second cross belt 16 at the middle of the second auxiliary fixing belt 15, and a second cross belt 17 is disposed at both ends of the second auxiliary fixing belt 15, and the top layer of the bulk bag body 1 is provided with a first resistance The fuel layer 18, one side of the first flame-retardant layer 18 is provided with an anti-aging layer 19, one side of the anti-aging layer 19 is provided with a reinforcing layer 20, and one side of the reinforcing layer 20 is provided with a polypropylene core layer 21, a polypropylene core One side of the layer 21 is provided with a drying layer 22, one side of which is provided with a second flame-retardant layer 23, and one side of the second flame-retardant layer 23 is provided with a wear-resistant layer 24, and the inside of the reinforcing layer 20 is provided with reinforcement The weft ribs 25 and the one side of the reinforcing weft ribs 25 are provided with reinforcing reinforcing ribs 26.

2. A method for preparing a retractable environmental protection package bag, comprising: the following steps:

1Material selection: The raw materials are scraps without flooring, or called chamfers, some are spouts, rubber heads, etc. The quality is also good, that is, it has not been used, in the process of processing new materials, the remaining Small corners, or raw materials that are not of good quality, with these pellets processed from wool;

2 Drawing: 1. Drying and stirring the raw and auxiliary materials required for weighing or metering. If the raw materials of the recycled material particles are mixed, the recycled material particles are first added to the dry mixer for mixing, and the temperature of the recovered material particles is controlled at about 80. °C, release the heat in the mixing box when the temperature is set, then add the new material to the drying mixer and stir the temperature to 80 °C. Add the filling masterbatch and continue to stir. The masterbatch becomes powder, and the coloring pigment should be added in time. The required coloring pigment is stirred for about 1 minute and released in the mixing box and evenly mixed with the recycled material particles; if the raw material is powder mixed with the recycled material particles, the recycled material particles are first heated to about 70 ° C to add the filler masterbatch and continue to stir. When the temperature is set, the powder placed in the mixing box and released later is stirred and evenly used;

2. Add the prepared resin to the extruder hopper;

3. Open the cooling water valve of the water tank;

4. When the extrusion temperature reaches the specified requirements, the temperature is 15 min;

3 Weaving, weaving, cutting and sewing: The drawing of the woven bag coating cloth obtained by the above method is performed by a flat knitting method, and then the cutting, cutting and sewing are sequentially performed, thereby obtaining a retractable environmental protection bag. ;

4 Acceptance: The special technical personnel will carry out the inspection and acceptance of the relevant technical parameters of the retractable environmental protection container in strict accordance with the design drawings and relevant national standards;

Hoisting test: Take a certain amount from qualified retractable environmental protection container bags, carry out the load hoisting test, and test whether the various use indicators of the retractable environmental protection container bag meet the standard. If the quality is unqualified, re-examine each Item parameters, re-production;

6 Packing: The qualified products obtained by the above-mentioned retractable environmental protection container bags are packaged by the baler after the acceptance and lifting test.

According to the above technical solution, one ends of the third zipper strip 12 and the second lateral strip 16 are fixedly connected to the second auxiliary fixing belt 15, and the other end is connected by a buckle.

According to the above technical solution, the discharge opening 2 is provided in a pleated structure and has a circular cross section.

According to the above technical solution, the wire drawing machine should be prepared before starting up: 1) to obtain the required raw and auxiliary materials, such as polypropylene particles or powder, recycled recycled material particles, filler masterbatch, coloring pigment, filter mesh, double-sided blade, etc. , to receive special tools and other operating tools.

2) Turn on each group of electric heating switches, check whether the electric heating of each group is energized, check whether the temperature meter is normal, and repair it immediately if abnormal phenomena are found. If everything is normal, first heat the tee and die temperature, when the temperature of the three-way and the die reaches At a certain temperature, rely on the usual experience and records to master the data, then turn on the barrel heater, and finally turn on the heaters of the two ovens;

3) Adjust each heating control temperature to the required temperature; the temperature of the extruder should be changed according to the position of the sensor, the characteristics of the plastic and the proportion of the recycled material. The temperature and the temperature of the oven should be determined by the usual experience and records. The position of the sensor and the draw ratio are drawn up. In general, the draw ratio is high and rises, low and down;

4) The blade of the slitting frame is installed, and the blade is generally a double-sided blade;

5) Adjust the tension of the guide wire of the winder and the tension of the wire.

According to the above technical solution, the first flame-retardant layer 18 and the second flame-retardant layer 23 are members of an organic bromide material.

According to the above technical solution, the reinforcing weft 25 and the reinforcing warp 26 are members of a glass fiber material.

Based on the above, the present invention has an advantage in that, when used, when the volume needs to be reduced, the first zipper strip 6 and the second zipper strip 8 need only be fixed by the first zipper head 7, and then the first cross-belt 10, One end of a cross belt 11 is fixed by a lock, and at this time, the first cross belt 10 and the first cross belt 11 are in a tight state, and the first zipper strip 6, the first zipper head 7, and the second zipper strip 8 are not in tension. In the tight state, the same operation is performed on the other two sides. After the completion, the volume of the bulk bag body 1 can be reduced, and at the same time, the contracted portion of the reduced bulk bag body 1 can be prevented from being opened, and the use is safe. The first flame-retardant layer 18 and the second flame-retardant layer 23 enable the bulk bag body 1 to have better flame-retardant properties, prevent friction and fire, and reduce safety hazards, and improve the weft ribs 25 and the reinforcing warp ribs 26 by providing The service life of the container body 1 is obtained.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it can still be The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims (7)

A retractable environmental protection package bag, comprising a container body (1), a discharge opening (2), a feeding port (3), a first lifting belt (4), a second lifting belt (5), and a first zipper strip (6), a first zipper head (7), a second zipper strip (8), a first auxiliary fixing strap (9), a first cross strap (10), a first cross strap (11), and a third zipper strip ( 12), a second zipper head (13), a fourth zipper strip (14), a second auxiliary fixing strap (15), a second cross strap (16), a second cross strap (17), a first flame retardant layer ( 18), anti-aging layer (19), reinforcing layer (20), polypropylene core layer (21), drying layer (22), second flame-retardant layer (23), wear layer (24), reinforcing weft ( 25) and a reinforcing warp beam (26), characterized in that: a middle portion of the bottom end of the bulk bag body (1) is provided with a discharge opening (2), and a middle portion of the top end of the container bag body (1) is provided with a feeding material The mouth (3) is stitched with a first lifting strap (4) and a second lifting strap (5) on both sides of the top end of the container body (1), and both sides of the container body (1) are disposed There is a first zipper strip (6), a bottom end of the first zipper strip (6) is provided with a first zipper head (7), and a side of the first zipper strip (6) is provided with a second zipper strip ( 8) One side of the first zipper strip (6) and the second zipper strip (8) are respectively provided with a first auxiliary fixing strap (9), and a first cross strap is disposed at a middle portion of the first auxiliary fixing strap (9) (10), both ends of the first auxiliary fixing belt (9) are provided with a first intersecting belt (11), and the other sides of the bulk bag body (1) are provided with a third zipper strip (12) The bottom end of the third zipper strip (12) is provided with a second zipper head (13), and one side of the third zipper strip (12) is provided with a fourth zipper strip (14), the third a second auxiliary fixing belt (15) is disposed on one side of the zipper strip (12) and the fourth zipper strip (14), and a second horizontal belt (16) is disposed at a middle portion of the second auxiliary fixing belt (15). Two ends of the second auxiliary fixing belt (15) are provided with a second intersecting belt (17), and a top layer of the container body (1) is provided with a first flame-retardant layer (18), the first flame retardant One side of the layer (18) is provided with an anti-aging layer (19), one side of the anti-aging layer (19) is provided with a reinforcing layer (20), and one side of the reinforcing layer (20) is provided with a polypropylene core a layer (21), one side of the polypropylene core layer (21) is provided with a dry layer (22), and one side of the dry layer (22) is provided A second flame-retardant layer (23) is disposed, one side of the second flame-retardant layer (23) is provided with a wear-resistant layer (24), and the inside of the reinforcement layer (20) is provided with a reinforcing weft (25) A reinforcing rib (26) is disposed on one side of the reinforcing weft (25). A method for preparing a retractable environmental protection package bag, comprising: the following steps: 1) Material selection: the raw materials are scraps that are not grounded, or called chamfers, some are spouts, rubber heads, etc. The quality is also good, that is, it has not been used, in the process of processing new materials, the rest Small corners, or raw materials that are not of good quality, and those that are processed from wool; 2) Drawing: 1. Drying and stirring the raw and auxiliary materials required for weighing or metering. If the raw materials of the recycled material particles are mixed, the recycled material particles are first added to the dry mixer for mixing, and the temperature of the recovered material particles is controlled at about 80 ° C, when the temperature is set, release the heat in the mixing box, then add the new material to the drying mixer to stir the temperature to 80 ° C, add the filler masterbatch and continue to stir, the masterbatch becomes powder, and the coloring pigment needs to be added in time. Add the required coloring pigment, stir for about 1min, and release it evenly in the mixing box and the recycled material particles; if the raw material is powder mixed with the recycled material particles, first heat the recycled material particles to about 70 ° C, add the filling masterbatch and continue to stir. When the temperature is set, the powder placed in the mixing box and released later is mixed and used until it is used; 2. Add the prepared resin to the extruder hopper; 3. Open the cooling water valve of the water tank; 4. When the extrusion temperature reaches the specified requirements, the temperature is 15 min; 3) Weaving, weaving, cutting, sewing: The drawing of the woven bag coating cloth obtained by the above method is performed by a flat knitting method, and then cut, cut and sewn in order to obtain a retractable environmental protection package. bag; 4) Acceptance: The special technical personnel will carry out the inspection and acceptance of the relevant technical parameters of the retractable environmental protection container in strict accordance with the design drawings and relevant national standards; Hoisting test: Take a certain amount from qualified retractable environmental protection container bags, carry out the load hoisting test, and test whether the various use indicators of the retractable environmental protection container bag meet the standard. If the quality is unqualified, re-examine each Item parameters, re-production; 6) Packing: The qualified products obtained by the above-mentioned scalable environmental protection container bags are packaged by the baler after the acceptance and lifting test. The retractable environmental protection bag according to claim 1, wherein one end of the third zipper strip (12) and the second cross strap (16) are fixedly connected to the second auxiliary fixing strap (15). The other end is connected by a lock. A retractable eco-package bag according to claim 1, wherein the discharge opening (2) is provided in a pleated structure and has a circular cross section. The method for preparing a retractable and environmentally-friendly container according to claim 2, wherein the wire drawing machine should be prepared before starting the machine: 1) receiving the raw and auxiliary materials required, such as polypropylene particles or powder. , Recycled pellets, filler masterbatch, coloring pigments, filters, double-sided blades, etc., to receive special tools and other operating tools. 2) Turn on each group of electric heating switches, check whether the electric heating of each group is energized, check whether the temperature meter is normal, and repair it immediately if abnormal phenomena are found. If everything is normal, first heat the tee and die temperature, when the temperature of the three-way and the die reaches At a certain temperature, rely on the usual experience and records to master the data, then turn on the barrel heater, and finally turn on the heaters of the two ovens; 3) Adjust each heating control temperature to the required temperature; the temperature of the extruder should be changed according to the position of the sensor, the characteristics of the plastic and the proportion of the recycled material. The temperature and the temperature of the oven should be determined by the usual experience and records. The position of the sensor and the draw ratio are drawn up. In general, the draw ratio is high and rises, low and down; 4) The blade of the slitting frame is installed, and the blade is generally a double-sided blade; 5) Adjust the tension of the guide wire of the winder and the tension of the wire. The retractable environmental protection bag according to claim 1, wherein the first flame-retardant layer (18) and the second flame-retardant layer (23) are an organic bromide material member. . The method for preparing a retractable and environmentally-friendly container according to claim 2, wherein the reinforcing weft (25) and the reinforcing warp (26) are members of a glass fiber material.

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