A dry-wet separation bag with easy folding and breaking pieces and a production process thereof

Abstract

The application relates to the field of cosmetic packaging bags, in particular to an easy-to-fold and break piece type dry-wet separation bag and a production process thereof. The easy-to-fold and break piece type dry-wet separation bag comprises a bag body with a periphery seal, the bag body is provided with a partition, the partition divides the bag body into a first placing cavity and a second placing cavity, the partition is provided with a flow-through channel communicating the first placing cavity and the second placing cavity, and the partition is provided with a folding and breaking assembly used for blocking the flow-through channel and being easy to break; the folding and breaking assembly comprises a folding and breaking piece penetrating the partition and corresponding to the flow-through channel, two sealing pieces respectively arranged on the two sides of the folding and breaking piece, the sealing pieces being fixedly connected to the cavity wall of the first placing cavity or the second placing cavity, and the two ends of the sealing pieces being connected to the partition; the folding and breaking piece is provided with a folding and breaking groove, and the folding and breaking groove is located between the flow-through channel and the corresponding sealing piece. The application has the advantages that the essence film liquid and the film cloth in the extrusion type packaging bag are more easily mixed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cosmetic packaging bags, in particular to an easy-to-fold and break piece type dry-wet separation bag and a production process thereof. BACKGROUND

[0002] There are many high-end masks on the market today. These high-end masks may use some special essence film liquid or mask cloth. Usually, the essence film liquid and the mask cloth need to be packaged separately. If the essence film liquid and the mask cloth are packaged separately, it may be inconvenient to mix the essence film liquid and the mask cloth, and the essence film liquid or the mask cloth may be lost, and various problems may exist.

[0003] In order to solve the above problems, an integrated packaging mask bag appears, and the common packaging bags are squeeze type and ring type. Most of the squeeze type packaging bags on the market need the user to squeeze the essence film liquid to one side of the mask cloth. In actual use, the user needs to fold the mask bag and continuously squeeze to break the adhesive point, so that the packaging part is cracked, and the essence film liquid can flow to the mask cloth side. Such operation is more laborious, and when the force is too large, the mask bag is easy to be damaged, which affects the use. Therefore, there is still room for improvement. SUMMARY

[0004] In order to make the essence film liquid and the mask cloth in the squeeze type packaging bag more easily mixed, the present application provides an easy-to-fold and break piece type dry-wet separation bag and a production process thereof.

[0005] In the first aspect, the present application provides an easy-to-fold and break piece type dry-wet separation bag, which adopts the following technical scheme:

[0006] An easy-to-fold and break piece type dry-wet separation bag, comprising a bag body with a periphery seal, the bag body is provided with a partition, the partition divides the bag body into a first placement cavity and a second placement cavity, the partition is provided with a flow-through channel communicating the first placement cavity and the second placement cavity, and the partition is provided with a breakable folding assembly for blocking the flow-through channel;

[0007] The breakable folding assembly comprises a breakable piece penetrating the partition and corresponding to the flow-through channel, and two sealing pieces respectively arranged on both sides of the breakable piece, the sealing pieces are fixedly connected to the cavity wall of the first placement cavity or the second placement cavity, and both ends of the sealing pieces are connected to the partition;

[0008] The breakable piece is provided with a breakable groove, and the breakable groove is located between the flow-through channel and the corresponding sealing piece.

[0009] The breakable piece is a PS sheet, the sealing piece is a PE sheet, and the breakable piece and the sealing piece are connected by adhesion.

[0010] The first and second placing cavities can be used to load essence film liquid and film cloth respectively. The folding piece is set in a slightly inclined state, and the two sides of the folding piece are respectively provided with sealing pieces for temporarily separating the first and second placing cavities. The folding assembly keeps the essence film liquid and film cloth in a sterile and fresh independent state before being used.

[0011] When the user uses it, he only needs to gently pull the folding assembly, and the folding piece, especially the folding groove, will immediately break. The gap generated makes the first and second placing cavities communicate. The essence film liquid with good fluidity flows from the gap to the film cloth on the other side.

[0012] In actual research and development, it is found that the use of these two materials together can make the folding assembly and the bag body have relatively strong connection strength, and only a light force is needed to make the folding piece, especially the folding groove, quickly break, thereby realizing communication.

[0013] Preferably, the PS sheet includes the following raw materials in mass fraction:

[0014] 90-105 parts of polystyrene, 2-8 parts of coupling agent, 10-20 parts of aluminum silicate fiber, 10-25 parts of Robusta hemp fiber, 0-2 parts

[0015] Antioxidant, 0.1-3 parts of crosslinking agent, 0.1-3 parts of crosslinking agent.

[0016] The preparation of the separation bag generally adopts a heat sealing method. Although the PS sheet as the folding piece has a good folding effect, it has poor heat resistance and is easily affected by high temperature during heat sealing, which changes the performance and shape of the folding piece, thereby affecting the separation and folding effect. Therefore, the PS sheet is modified to obtain a PS sheet that does not easily change in performance at high temperatures, so that the separation bag has better effect.

[0017] By adopting the above technical scheme, under the cooperation of polystyrene, aluminum silicate fiber and apocynum fiber, the network is interwoven, and the frosted convex points on the surface of the apocynum fiber are fully utilized to be closely combined with the system, which helps to improve the intermolecular force, so that the raw materials in the system are uniformly dispersed, and the PS sheet is endowed with good mechanical properties. The aluminum silicate fiber has good heat resistance effect, and after being matched with polystyrene and apocynum fiber, the special network structure can improve the overall heat resistance of the PS sheet. In the network structure formed by the interweaving of the aluminum silicate fiber and the apocynum fiber in the polystyrene, the spacing of the molecular chains of the apocynum fiber is increased, so that the hydrogen bond strength between the molecular chains is weakened, and the network structure, especially part of the apocynum fiber, has good water vapor absorption capacity and sufficient water vapor absorption space. After the apocynum fiber absorbs the water vapor in the air, it is temporarily fixed by the network structure. When heat sealing is performed subsequently, the temperature of the surface and the surrounding of the PS sheet instantaneously rises, part of the water vapor in the network structure evaporates with high temperature, and the evaporation of the water vapor makes the temperature of the surface of the PS sheet drop rapidly, thereby relieving the influence of high temperature on the PS sheet.

[0018] Preferably, when the polystyrene is 100 parts, the aluminum silicate fiber is 12-15 parts, and the apocynum fiber is 15-25 parts.

[0019] By adopting the above technical scheme, the special network structure formed by the special amount of polystyrene, aluminum silicate fiber and apocynum fiber can be more uniformly and fully distributed in the system, thereby helping to improve the mechanical properties of the PS sheet and having good heat resistance effect.

[0020] Preferably, the fiber diameter of the apocynum fiber is 20-30 μm.

[0021] By adopting the above technical scheme, the diameter of the apocynum fiber is further limited, which has better interweaving effect with polystyrene and aluminum silicate fiber, and can ensure that the apocynum fiber can absorb sufficient water.

[0022] Preferably, the PS sheet further comprises high styrene rubber.

[0023] By adopting the above technical scheme, under the cooperation of high styrene rubber and polystyrene, due to the similar compatibility principle, the two have good compatibility effect, the high styrene rubber is uniformly dispersed in the polystyrene system, the intermolecular force between the two is strong, the intermolecular bonding force is increased, the whole system is more stable, the movement of the polystyrene molecular chain is hindered, and it is not easily affected by high temperature.

[0024] Preferably, the mass ratio of the high styrene rubber to the polystyrene is (0.05-0.15):1, based on the mass of the polystyrene.

[0025] By adopting the technical scheme, the mass ratio of high styrene rubber and polystyrene is further limited, and under the mass ratio, a more sufficient matching system can be provided for the network structure of the aluminum silicate fiber and the Robusta hemp fiber, so that the network structure is combined more closely and is not easy to shift.

[0026] Preferably, the preparation method of the PS sheet comprises the following steps:

[0027] The polystyrene is mixed and stirred with the aluminum silicate fiber, the Robusta hemp fiber and the coupling agent, and the mixing time is 5-10 min;

[0028] Then the toughening agent, the crosslinking agent and the co-crosslinking agent are added and mixed and stirred, and the mixing time is 10-20 min; extrusion, granulation and molding are performed to obtain the PS sheet.

[0029] By adopting the technical scheme, various raw materials are put in according to a specific order, so that the various raw materials have a more sufficient matching effect, thereby generating a specific structure, and the PS sheet with good mechanical properties and heat resistance is obtained. When the separation bag is heat sealed, even if the temperature on the surface and around the PS sheet rapidly rises, the PS sheet will not be denatured and the performance will not be reduced.

[0030] Preferably, when the PS sheet further comprises high styrene rubber, the preparation method comprises the following steps:

[0031] The polystyrene is mixed and stirred with the high styrene rubber, and the mixing time is 5-10 min;

[0032] Then the aluminum silicate fiber, the Robusta hemp fiber and the coupling agent are added and mixed and stirred, and the mixing time is 5-10 min;

[0033] Then the toughening agent, the crosslinking agent and the co-crosslinking agent are added and mixed and stirred, and the mixing time is 10-20 min; extrusion, granulation and molding are performed to obtain the PS sheet.

[0034] In a second aspect, the application provides a production process of an easy-to-fold and break piece type dry-wet separation bag, which adopts the following technical scheme:

[0035] A production process of an easy-to-fold and break piece type dry-wet separation bag, comprising the following steps:

[0036] One of the single films is heat sealed and connected with one of the sealing pieces of the folding assembly, and then another one of the single films is heat sealed and connected with another one of the sealing pieces of the folding assembly;

[0037] The separator is arranged on the side of the single film close to the folding assembly;

[0038] Heat seal the four sides of the two single films corresponding to the partition to obtain a separation bag;

[0039] The two single films are closed at the four sides to form a bag body.

[0040] In summary, the present application has the following beneficial effects:

[0041] 1. When the user uses it, he only needs to gently pinch the position of the folding assembly, and the folding piece, especially the folding slot, will immediately break. The gap generated enables the first placement cavity and the second placement cavity to communicate. The flowable essence film liquid flows from the gap to the film cloth on the other side; time and effort are saved, and the mixing effect is good.

[0042] 2. Under the cooperation of polystyrene, aluminum silicate fiber, and rob hemp fiber, the PS sheet can improve the overall heat resistance and mechanical properties of the PS sheet.

[0043] 3. Under the cooperation of high styrene rubber and polystyrene, the high styrene rubber is uniformly dispersed in the polystyrene system, so that the two have strong intermolecular forces, increase the intermolecular bonding force, make the whole system more stable, hinder the movement of polystyrene molecular chains, and make them not easily affected by high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application.

[0045] Figure 2 It is a schematic diagram of the folding assembly structure of the embodiment of the present application.

[0046] Figure 3 It is a schematic diagram of the overall cross-sectional structure of the embodiment of the present application.

[0047] Figure 4 It is a schematic diagram of the folding piece structure of the embodiment of the present application.

[0048] Reference signs: 1, bag body; 11, first placement cavity; 12, second placement cavity; 2, partition; 3, flow channel; 4, folding assembly; 41, folding piece; 411, folding slot; 42, sealing piece; 5, containing cavity. DETAILED DESCRIPTION

[0049] The present application will be further described in detail below in combination with the drawings and examples.

[0050] The raw materials used in the following examples and comparative examples are all commercially available products.

[0051] Examples

[0052] Example 1

[0053] A dry-wet separation bag with easy folding and breaking piece, referring to Figure 1 and Figure 2 A dry-wet separation mask bag with easy folding and breaking piece, comprising a bag body 1 with a periphery seal, the bag body 1 is provided with a partition 2, the partition 2 divides the bag body 1 into a first placement cavity 11 and a second placement cavity 12, the first placement cavity 11 and the second placement cavity 12 are separated by the partition 2, the partition 2 and the inner wall of the bag body 1 form a flow channel 3 communicating the first placement cavity 11 and the second placement cavity 12, and the partition 2 adopts a conventional heat sealing strip.

[0054] Referring to Figure 2 and Figure 3 , the partition 2 is provided with a breaking and folding assembly 4 for blocking the flow channel 3 and being easy to break. The breaking and folding assembly 4 comprises a breaking and folding piece 41 penetrating the partition 2 and corresponding to the flow channel 3, and two sealing pieces 42 fixedly connected on both sides of the breaking and folding piece 41 respectively, and the breaking and folding piece 41 adopts a material such as plastic which is easy to break.

[0055] Referring to Figure 3 and Figure 4 , the sealing piece 42 is fixedly connected to the cavity wall of the first placement cavity 11 or the second placement cavity 12, the sealing piece 42 is arranged in a circular arc shape and both ends are connected to the partition 2, and the sealing piece 42 adopts a conventional heat sealing strip.

[0056] Referring to Figure 3 and Figure 4 , the two sides of the breaking and folding piece are formed with a containing cavity 5 respectively on the cavity wall of the first placement cavity 11 or the second placement cavity 12.

[0057] Referring to Figure 3 and Figure 4 , both ends of the breaking and folding piece 41 are provided with a breaking and folding groove 411, and the two breaking and folding grooves 411 are respectively provided on both sides of the breaking and folding piece 41 and located between the flow channel 3 (referring to Figure 2 ) and the corresponding sealing piece 42, and the groove wall of the breaking and folding groove 411 is arranged in a circular arc shape.

[0058] Specifically, the breaking and folding piece 41 is a PS sheet, the sealing piece 42 is a PE sheet, and the breaking and folding piece 41 and the sealing piece 42 are connected by adhesion.

[0059] The PS sheet comprises the following raw materials: 90-105 parts of polystyrene, 2-8 parts of coupling agent, 10-20 parts of aluminum silicate fiber, 10-25 parts of Robusta hemp fiber, 0-2 parts of antioxidant, 0.1-3 parts of crosslinking agent, and 0.1-3 parts of crosslinking aid.

[0060] The model of polystyrene is GPPS143E, which is purchased from Yangzi BASF.

[0061] The coupling agent is a titanate coupling agent, and the specific model is NDZ-201.

[0062] The aluminum silicate fiber is commercially available, and is specifically purchased from Shijiazhuang Ruinuo Mineral Products Co., Ltd.

[0063] The apocynum fiber is commercially available, and the fiber diameter is 20-30 μm, and is purchased from Qingdao Baicaoxin Material Co., Ltd.

[0064] The antioxidant is N,N'-bis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl)hexanediamine.

[0065] The crosslinking agent is a crosslinking agent DCP.

[0066] The co-crosslinking agent is TMPTA.

[0067] The preparation method of the PS sheet comprises the following steps:

[0068] Step 01): The polystyrene is mixed and stirred with the aluminum silicate fiber, the apocynum fiber, and the coupling agent, and the mixing time is 10 min.

[0069] Step 02): Then the toughening agent, the crosslinking agent, and the co-crosslinking agent are added to the material of step 01) and mixed and stirred, and the mixing time is 20 min.

[0070] Step 03): The material of step 02) is put into a double-screw extruder for blending, extrusion, and granulation. The extrusion temperature is 190°C, and the screw rotation speed is 150 r / min.

[0071] Step 04): The granules obtained in step 03) are dried in hot air at 40°C for 4 h. Then the granules are put into an injection molding machine for injection molding to obtain a PS sheet.

[0072] The application also provides a production process of the easy-to-fold dry-wet separation bag, comprising the following steps:

[0073] Step 1): The side of the single film is heat-sealed and connected with one of the sealing pieces 42 of the folding assembly 4, and then another single film is heat-sealed and connected with the other sealing piece 42 of the folding assembly 4.

[0074] The single film is a PE film.

[0075] Step 2): The separator 2 is arranged on the side of the single film close to the folding assembly 4, and the separator 2 is adhesive glue.

[0076] Step 3): The four sides of the two single films are heat-sealed at the positions corresponding to the separator 2 to obtain a separation bag.

[0077] After the four sides of the two single films are closed, the bag body 1 is obtained.

[0078] Example 2

[0079] A foldable dry-wet separation bag, which differs from example 1 in that the specific amount of each raw material is different, see table 1 for details.

[0080] The preparation method of the PS sheet includes the following steps:

[0081] Step 01): Polystyrene is mixed and stirred with aluminum silicate fiber, mao-huang fiber and coupling agent, and the mixing time is 5 min.

[0082] Step 02): Then add toughening agent, crosslinking agent and crosslinking aid to the material of step 01) and mix and stir, and the mixing time is 10 min.

[0083] Step 03): Put the material of step 02) into a double screw extruder for blending, extrusion and granulation, the extrusion temperature is 190℃, and the screw speed is 150r / min.

[0084] Step 04): The granules obtained in step 03) are dried in hot air at 40℃ for 4h. Then the granules are put into an injection molding machine for injection molding to obtain a PS sheet.

[0085] Examples 3-5

[0086] A foldable dry-wet separation bag, which differs from example 1 in that the specific amount of each raw material is different, see table 1 for details.

[0087] Table 1

[0088] Class Example 1 Example 2 Example 3 Example 4 Example 5 Polystyrene (kg) 100 90 105 100 100 Coupling agent (kg) 4 2 8 4 4 Aluminum silicate fibers (kg) 15 10 20 12 15 Boabab fibers (kg) 20 10 25 15 25 Antioxidant (kg) 1 0.1 2 1 1 Crosslinking agent (kg) 1 0.1 3 1 1 Co-crosslinking agent (kg) 1 3 0.1 1 1

[0089] Example 6

[0090] A foldable dry-wet separation bag, which differs from example 1 in that the PS sheet further includes high styrene rubber, and the mass ratio of high styrene rubber to polystyrene is 0.05:1. That is, the high styrene rubber is 5kg, and the polystyrene is 100kg.

[0091] The preparation method of the PS sheet includes the following steps:

[0092] Step 01): Polystyrene is mixed and stirred with high styrene rubber, and the mixing time is 10 min.

[0093] Step 02): Add aluminum silicate fiber, mao-huang fiber and coupling agent to the material of step 01) and mix and stir, and the mixing time is 10 min.

[0094] Step 03): Then add toughening agent, crosslinking agent and crosslinking aid to the material of step 02) and mix and stir, and the mixing time is 20 min.

[0095] Step 04): The material of step 03) is put into a double screw extruder for blending, extrusion and granulation, the extrusion temperature is 190°C, and the screw rotation speed is 150 r / min.

[0096] Step 05): The granules obtained in step 04) are dried in hot air at 40°C for 4h. Then the granules are put into an injection molding machine for injection molding to obtain PS sheet.

[0097] Example 7

[0098] A foldable and breakable dry-wet separation bag, which is different from example 1 in that the PS sheet further comprises high styrene rubber, and the mass ratio of high styrene rubber to polystyrene is 0.15:1. That is, the high styrene rubber is 15 kg, and the polystyrene is 100 kg.

[0099] The high styrene rubber is commercially available, and is specifically purchased from Dongguan Xirui New Material Co., Ltd.

[0100] The preparation method of the PS sheet comprises the following steps:

[0101] Step 01): The polystyrene and high styrene rubber are mixed and stirred, and the mixing time is 5 min.

[0102] Step 02): The aluminum silicate fiber, loofah fiber and coupling agent in step 01) are added and mixed and stirred, and the mixing time is 10 min.

[0103] Step 03): Then the toughening agent, crosslinking agent and crosslinking aid in the material of step 02) are added and mixed and stirred, and the mixing time is 20 min.

[0104] Step 04): The material of step 03) is put into a double screw extruder for blending, extrusion and granulation, the extrusion temperature is 190°C, and the screw rotation speed is 150 r / min.

[0105] Step 05): The granules obtained in step 04) are dried in hot air at 40°C for 4h. Then the granules are put into an injection molding machine for injection molding to obtain PS sheet.

[0106] Example 8

[0107] A foldable and breakable dry-wet separation bag, which is different from example 7 in that the mass ratio of high styrene rubber to polystyrene in the PS sheet is 0.25:1. That is, the high styrene rubber is 23 kg, and the polystyrene is 92 kg.

[0108] The high styrene rubber is commercially available, and is specifically purchased from Dongguan Xirui New Material Co., Ltd.

[0109] Example 9

[0110] A foldable dry-wet separation bag, different from example 7 is that the high styrene rubber in the PS sheet is replaced by SBS rubber, i.e. high styrene rubber is 0 kg and SBS rubber is 15 kg.

[0111] The SBS rubber is commercially available, model YH-792, and is specifically purchased from Shandong Jiayun Chemical Technology Co., Ltd.

[0112] Example 10

[0113] A foldable dry-wet separation bag, different from example 1 is that the aluminum silicate fiber in the PS sheet is replaced by mullite fiber, i.e. aluminum silicate fiber is 0 kg and mullite fiber is 15 kg.

[0114] Example 11

[0115] A foldable dry-wet separation bag, different from example 1 is that the apocynum fiber in the PS sheet is replaced by ramie fiber, i.e. apocynum fiber is 0 kg and ramie fiber is 20 kg.

[0116] Example 12

[0117] A foldable dry-wet separation bag, different from example 1 is that in the PS sheet, aluminum silicate fiber is 5 kg and apocynum fiber is 30 kg.

[0118] Performance test

[0119] 1. Heat resistance: the PS sheets of examples 1-12 were tested according to GB / T 1633-2000 "Determination of Vicat Softening Temperature (VST) of Thermoplastics", with a heating rate of 2℃ / min. The Vicat softening temperature was recorded in Table 2.

[0120] 2. Mechanical properties: the tensile strength and bending strength of the PS sheets of examples 1-12 were tested according to GB / T 1040.3-2006 and GB / T 9341-2008, and recorded in Table 2, which is the initial strength.

[0121] Then the PS sheets of examples 1-12 were placed in a condition of 150℃ for 2 min, and after taking out, the tensile strength and bending strength were detected again, and recorded in Table 2, which is the strength after heat treatment.

[0122] Table 2

[0123]

[0124]

[0125] According to the comparison of the detection data of examples 1-5 and examples 10-12 in table 2, the Vicat softening temperature of the PS sheet prepared in example 1 is greatly improved compared with examples 10-12, and the mechanical properties before and after treatment are better than examples 10-12. It shows that the PS sheet prepared by the application has good heat resistance, and the instantaneous high temperature has little effect on the performance of the PS sheet. And because the PS sheet of examples 1-5 has higher mechanical properties, the thickness of the folded sheet can be thinner under the condition of unchanged folding effect, which is beneficial to reduce the cost and also makes the whole separation bag thinner. It shows that the combination of polystyrene, aluminum silicate fiber and apocynum fiber can affect the structure of PS sheet, effectively improve the mechanical properties of PS sheet, and also has certain water vapor absorption capacity, and the instantaneous temperature rise has little effect on the performance of PS sheet. Polystyrene, aluminum silicate fiber and apocynum fiber are a special whole combination, and the special combination cannot be produced by replacing raw materials or changing the special amount of raw materials.

[0126] According to the comparison of the detection data of examples 1 and examples 6-8 in table 2, the combination of high styrene rubber and polystyrene can change the structure of PS sheet, effectively improve the heat resistance and mechanical properties. In example 8, the mass ratio of high styrene rubber and polystyrene exceeds the specific preferred range, and the performance of PS sheet in example 8 is lower than that of examples 6-7. It shows that further limiting the mass ratio of high styrene rubber and polystyrene in a specific range is beneficial to make the combination between them more sufficient.

[0127] According to the comparison of the detection data of examples 7 and examples 9 in table 2, the mechanical properties of the PS sheet prepared by replacing high styrene rubber with SBS rubber are decreased, and the improvement degree is not as good as the combination of high styrene rubber and polystyrene.

[0128] The specific embodiments are only an explanation of the application, which is not a limitation of the application. Those skilled in the art can make non-creative contribution modifications to the embodiments according to the needs after reading the specification, but as long as it is within the scope of the claims of the application, it is protected by the patent law.

Claims

1. A dry-wet separation bag of easy folding and bending, characterized by, The utility model provides a bag body (1) including four week seal, the bag body (1) is provided with partition (2), the bag body (1) is divided into first placement cavity (11) and second placement cavity (12) with partition (2), partition (2) is provided with the flow passage (3) of the communication first placement cavity (11) and second placement cavity (12), partition (2) is provided with the breakable component (4) for blocking flow passage (3) and being easy to break apart; The breakable component (4) includes a breakable piece (41) disposed on the partition (2) and corresponding to the flow passage (3), two seals (42) respectively disposed on both sides of the breakable piece (41), the seals (42) are fixedly connected to the cavity walls of the first placement cavity (11) and the second placement cavity (12), and both ends of the seals (42) are connected to the partition (2); The breakable piece (41) is provided with a breakable groove (411) located between the flow passage (3) and the corresponding seal (42); The breakable piece (41) is a PS sheet, the seal (42) is a PE sheet, and the breakable piece (41) and the seal (42) are connected by adhesion.

2. The easy-to-fold-and-tear dry-wet separation bag according to claim 1, characterized by: According to the mass fraction, the PS sheet includes the following raw materials: 90-105 parts of polystyrene, 2-8 parts of coupling agent, 10-20 parts of aluminum silicate fiber, 10-25 parts of apocynum fiber, 0-2 parts of antioxidant, 0.1-3 parts of crosslinking agent, and 0.1-3 parts of crosslinking aid.

3. The easy-to-fold, squeeze-and-pop dry-wet separation bag according to claim 2, characterized in that: When the polystyrene is 100 parts, the aluminum silicate fiber is 12-15 parts, and the apocynum fiber is 15-25 parts.

4. The easy-to-fold, squeeze-and-pop dry-to-wet separation bag according to claim 2, wherein: The fiber diameter of the apocynum fiber is 20-30 μm.

5. The easy-to-fold-and-snap wet / dry separation bag according to claim 2, characterized by: The PS sheet also includes high styrene rubber.

6. The easy-to-fold, squeeze-and-pop dry-separation bag according to claim 5, characterized in that: The mass ratio of the high styrene rubber to the polystyrene is (0.05-0.15):1, based on the mass of the polystyrene.

7. The easy-to-fold wet / dry separation bag according to any one of claims 2 to 6, characterized in that: The preparation method of the PS sheet includes the following steps: Mix and stir the polystyrene, the aluminum silicate fiber, the apocynum fiber, and the coupling agent, and the mixing time is 5-10 min; Then add the antioxidant, the crosslinking agent, and the crosslinking aid, and mix and stir, and the mixing time is 10-20 min; Extrude, granulate, and shape to obtain the PS sheet.

8. The easy-to-fold, squeeze-and-pop dry- wet separation bag according to claim 7, characterized in that: When the PS sheet also includes high styrene rubber, the preparation method includes the following steps: Mix and stir the polystyrene and the high styrene rubber, and the mixing time is 5-10 min; Then add the aluminum silicate fiber, the apocynum fiber, and the coupling agent, and mix and stir, and the mixing time is 5-10 min; Then add the antioxidant, the crosslinking agent, and the crosslinking aid, and mix and stir, and the mixing time is 10-20 min; Extrude, granulate, and shape to obtain the PS sheet.

9. A process for the production of a dry-wet separation bag of the easy-to-fold and to-break type according to any one of claims 1 to 8, characterized in that, The method includes the following steps: Hot seal one of the seals (42) of the breakable component (4) to a single film, and then hot seal the other seal (42) of the breakable component (4) to another single film; The divider (2) is arranged on the side of the single film close to the folding assembly (4); The four sides of the two single films are heat sealed at the positions corresponding to the divider (2), so as to obtain a separation bag; The two single films are sealed on the four sides to form a bag body (1).

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