CN115924297B - Dry-wet separation mask bag and processing technology thereof - Google Patents
Dry-wet separation mask bag and processing technology thereof Download PDFInfo
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Abstract
The application relates to a dry-wet separation mask bag and a processing technology thereof, wherein the dry-wet separation mask bag comprises a first composite film and a second composite film, the first composite film and the second composite film are compounded together through hot-press edge sealing at two ends after being overlapped, and a handle is obtained through die cutting in a hot-press edge sealing area; the first composite film and the second composite film take the edge sealing area as a central line, the laminated film is reversely unfolded from the inside to be laminated, and the first composite film and the second composite film are respectively in a folded state; and hot-pressing a separation parting bead at the joint of the first composite film and the second composite film along the edge sealing area, so that the first composite film forms a first cavity, and the second composite film forms a second cavity. The handle assembly in the application is obtained by cutting out a hot-pressing edge sealing area formed when the first composite film and the second composite film are compounded, and the hot-pressing edge sealing area and the mask bag are integrally formed, so that the handle is not required to be bonded manually, and two handles can be obtained in the edge sealing areas at two ends only by mechanically cutting out the edge sealing areas.
Description
Technical Field
The application relates to the technical field of facial mask packaging bags, in particular to a dry-wet separation facial mask bag and a processing technology thereof.
Background
The mask bag for dry-wet separation comprises a wet area for storing mask liquid and a dry area for storing mask towel, wherein the dry area and the wet area are separated by a dry-wet separation break line, so that the dry-wet separation break line is opened when the mask bag is used, the mask liquid and the mask towel are mixed for use, and the probability of pollution and quality change of the mask liquid can be reduced. The packaging bags of the dry-wet separation facial masks in the market at present mainly comprise two types, wherein the first type is shown in figure 1, and the middle of the bag body is mainly divided into two parts by adopting a separation parting bead; when in use, the separation parting bead is extruded in an extrusion mode, so that the mask liquid and the mask towel are mixed. However, with such a structure, the following drawbacks occur: the pack packaging bag with the mixed mode can be extruded by extruding the separation bars only with large extrusion force, so that the situation that the separation bars cannot be extruded when a woman uses the pack packaging bag is avoided, and the use experience of consumers is poor; and it is not possible to avoid the risk of mixing due to mutual compression during transport. The second is a way to add a pull ring separately: for example, in patent number CN214085650U, a dry-wet separation mask pack, a separation assembly is provided on the mask pack to separate the dry area from the wet area; then installing a handle assembly on the separation assembly; in the treatment mode, the separation assembly can be pulled open through the handle assembly, so that the mask liquid and the mask towel are mixed, and the labor can be saved, but the handle assembly needs to be manually installed, so that the cost is high, and the automatic production is difficult; and no matter the heat-sealing pull ring or the self-adhesive pull ring is, the material is easy to be stagnated along with the change of the order quantity.
In view of the above-mentioned related art, the inventor believes that there is a facial mask bag with dry-wet separation, and there is a defect that the handle is troublesome to install and the production cost is high.
Disclosure of Invention
In order to solve the problems of troublesome installation and high production cost of the handle component of the existing dry-wet separation mask; the application provides a dry-wet separation mask bag and a processing technology thereof.
In a first aspect, the present application provides a dry-wet separation mask bag and a processing technology thereof, which adopts the following technical scheme:
a dry-wet separation mask bag comprises a first composite film and a second composite film, wherein after the first composite film and the second composite film are overlapped, the first composite film and the second composite film are compounded together through hot-press edge sealing at two ends, and a handle is obtained through die cutting in a hot-press edge sealing area; the first composite film and the second composite film take the edge sealing area as a central line, the laminated film is reversely unfolded from the inside to be laminated, and the first composite film and the second composite film are respectively in a folded state; hot-pressing separation parting strips at the joint of the first composite film and the second composite film along the edge sealing area to enable the first composite film to form a first cavity, the second composite film to form a second cavity, the lower ends of the first cavity and the second cavity are edge-sealed, the upper ends of the first cavity and the second cavity are edge-sealed, and any cavity can be selected to store mask liquid; after the facial mask towel is stored in the other cavity, the upper end is sealed.
By adopting the technical scheme, compared with the existing mode of adopting the whole material bag body, the mode of adopting the first composite film to form the first cavity and adopting the second composite film to form the second cavity in the application; the first composite film and the second composite film can be made of different materials according to different storage requirements of the mask liquid and the mask towel; for example, if the mask liquid is stored in the first chamber, the first composite film can be an opaque composite film; the cavity with the facial tissues can be selected to be a light-transmitting composite film.
The handle component is obtained by cutting a hot-pressing edge sealing area formed when the first composite film and the second composite film are compounded, and is integrally formed with the mask bag, so that the handle is not required to be bonded manually, and two handles can be obtained in the edge sealing areas at two ends only by mechanically cutting the edge sealing areas; then, after the first composite film and the second composite film are reversely unfolded and folded, the front and the back of the mask bag can be respectively provided with a handle; hot-pressing the separation parting bead along the edge sealing area, wherein the handle is arranged at the edge of the separation parting bead; therefore, the separation parting bead can be pulled open only by pulling the pulling handle to pull up in the direction perpendicular to the bag body, so that the facial mask liquid and the facial mask towel can be compounded.
Preferably, the first composite film adopts a composite film containing a barrier layer, and the formed first chamber is used for storing mask liquid; the second composite film adopts a composite film without a barrier layer, and a second cavity formed by the second composite film is used for placing facial mask tissues; the separation barrier is required to be hot pressed onto the first composite film along the edge seal area.
By adopting the technical scheme, the storage requirement of the mask liquid is higher than that of the mask towel, and the mask liquid is good in tightness and heat resistance; the first composite membrane stored in the mask liquid is added with a barrier membrane material, so that the external pressure can be resisted; meanwhile, the barrier film can block oxygen and moisture, has good heat resistance, good light reflectivity and glossiness, and good shape at high and low temperatures, is suitable for high-temperature cooking, and can resist 125 ℃ at high temperature; the storage requirement of the facial mask towel is not high, so that the aluminum foil material of the composite film is not required to be added; the separation parting bead is hot pressed on the first composite film, so that the first cavity can not transmit light at all.
Preferably, the first composite film is sequentially overlapped with a high-strength pull handle layer, an adhesive layer, a printing ink layer, an adhesive layer, an intermediate layer, an adhesive layer, a barrier layer, an adhesive layer and a heat seal layer from outside to inside; the second composite film has fewer barrier layers than the first composite film, and correspondingly has one less adhesive layer;
preferably, the high-strength pull handle layer is made of a high-strength PET or PA film; printing ink layer with PET or PA film as base film to obtain printing ink layer; the middle film layer is a PET or PA film; the barrier layer is one of an aluminum foil, an aluminizer or an oxidized aluminizer; the easy-to-tear heat seal layer is an easy-to-tear film layer which adopts PE as a base; the layers are sequentially prepared by dry-method compounding through the adhesive layers from outside to inside according to the superposition sequence of the films; either the first composite film or the second composite film is obtained.
Through adopting foretell technical scheme, adopt high strength to draw the handle layer in this application can improve the intensity of complex film, also can strengthen the intensity of drawing the handle, avoid drawing the handle to appear breaking when tearing and drawing. The printing ink layer is used to increase the decorativeness of the film so that product information can be printed. The intermediate layer can play a transitional role; the easy-to-tear heat sealing layer can control the bonding strength during heat sealing according to the strength of the heat pressing during heat pressing, and avoid overlarge hot air strength of the separation parting bead, so that the separation parting bead cannot be torn.
Preferably, the thickness of the PE-based easy-to-tear film layer is 40-120 um; the preparation method adopts a five-layer coextrusion film blowing process for preparation; the raw material formula adopts polyethylene, polyethylene-vinyl acrylate and polyethylene-acrylic acid are produced according to a specific formula, the first layer, the second layer and the third layer adopt polyethylene resin, the fourth layer adopts polyethylene to polyethylene-vinyl acrylate according to the mass ratio of 1:1, and the fifth layer adopts polyethylene to polyethylene-acrylic acid resin according to the mass ratio of 1:4.
By adopting the technical scheme, the front three layers adopt the mixture of the low-density polyethylene and the linear low-density polyethylene, for example, the heat sealing layer film can effectively improve the overall strength through the front three layers through the mixture of the low-density polyethylene and the linear low-density polyethylene. Meanwhile, a high-strength heat seal film layer with high viscosity can be formed through the fourth layer, and a bottom strength heat seal film layer with a viscous bottom can be formed through the fifth layer, so that the heat seal film can form a double platform with stable heat seal strength through the fourth layer and the fifth layer.
Preferably, the separation parting bead comprises two sections of heat sealing strips, the two sections of heat sealing strips are connected through a wavy heat seal, and the wavy heat seal is arranged at the pull handle.
By adopting the technical scheme, the separating parting bead is divided into three ends, two sections of heat seal strips and one section of wave heat seal strip, the wave heat seal strip is easier to tear compared with the straight heat seal strip, and after the wave heat seal strip is torn through the handle, the penetration between the first cavity and the second cavity can be realized, so that mask liquid enters into a mask towel and wets the mask towel; meanwhile, the heat seal strength can be increased by adopting two sections of straight strip-shaped heat seals, so that excessive force is avoided, and the whole mask bag is torn.
Preferably, the handle is slightly pressed to be attached to the second composite film, and the handle can be turned up when in use.
Through adopting above-mentioned technical scheme, through flattening the laminating of handle on the second complex film, the first aspect is in order to avoid the handle of turning up to be damaged easily, and the second aspect is that the handle of turning up also is unfavorable for stacking of facial mask.
In a second aspect, the present application provides a processing technology of a dry-wet separation mask bag, which includes the following steps:
s1: overlapping the first composite film and the second composite film, then carrying out hot-press edge sealing on two ends to combine the composite films together, and then carrying out die cutting on the hot-press edge sealing area to form a handle; at this time, the first composite film and the second composite film form a packaging bag, the left end and the right end of the packaging bag are closed, and the upper side and the lower side of the packaging bag are opened;
s2: the bag type is adjusted in a reverse film mode, the hot edge sealing area is taken as a central line, the overlapped composite film is unfolded from the inside to the opposite direction, the first composite film and the second composite film are respectively in a folding opposite state, and at the moment, the handles are positioned on two sides of the first composite film; a transition edge is formed between the handle and the second composite film, and the transition edge is also positioned at two sides of the first composite film;
s3: heat sealing is carried out on the first composite film along the edge of the transition edge to form a separation parting bead, and the first composite film forms a first cavity at the moment; the second composite film forms a second chamber; the lower ends of the first cavity and the second cavity are subjected to hot-press edge sealing, the upper ends are not subjected to edge sealing, after the first cavity and the second cavity are respectively filled with facial mask liquid and facial mask towel, the upper ends are subjected to hot-press edge sealing, and the second composite film is subjected to die cutting to form an easy-to-tear opening.
By adopting the technical scheme, a wider edge sealing area is formed by alkaline hot-pressing edge sealing of two composite films, and then die cutting is carried out on the edge sealing area to form a handle; the prepared handle and the bag body are integrally formed, and the handle is not required to be manually adhered, so that the preparation process can be simplified, and the cost is saved. In the application, the first composite film and the second composite film form corresponding storage chambers respectively in a reverse mode; therefore, the types of the corresponding composite films can be selected according to different storage conditions of the mask liquid and the mask towel.
Preferably, in the step S1, the first composite film and the second composite film are completely identical in size, and are in a connected integral structure before being not overlapped; the first composite film and the second composite film can be overlapped by adopting a single material structure, and any one of the first composite film and the second composite film is turned over to overlap the two; or a double-material structure is adopted to separate the connection positions of the first composite membrane and the second composite membrane, and the first composite membrane and the second composite membrane are overlapped through diversion.
Through adopting foretell technical scheme, this application connects first complex film and the one end of second complex in the preparation in-process and connects, makes both be whole on the material loading machine, can avoid staggering the position emergence of two kinds of membranes in the material loading process, therefore in mechanical coincide in-process, the not neat condition of coincide appears.
Preferably, in the step S1, the width of the hot-press edge sealing area needs to be greater than 3cm, and the hot-press edge sealing process parameters are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm.
Through adopting foretell technical scheme, need go out through the cross cutting of heat-seal area in this application and draw the handle, therefore its width needs to be comparatively wide, and the too narrow handle of width also can be too little, is unfavorable for subsequent tearing. The heat seal strength also needs to be large, so that the strength of the transition edge is ensured, and the transition edge cannot be torn off in the tearing process.
Preferably, the separation parting bead is divided into three sections, including two straight strip heat seals and a wave heat seal for connecting the two straight strip heat seals; the hot pressing process of the straight heat seal strip comprises the following steps: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm; the hot pressing process of the wavy seal strip comprises the following steps: the heat sealing pressure is 0.1-0.5 MPa, the heat sealing temperature is 150+/-300 ℃, and the heat sealing strength is 5+/-2N/15 mm.
By adopting the technical scheme, the hot-pressing strength of the wavy seal is reduced, so that the wavy seal is easier to pull open relative to the straight seal, the first cavity is communicated with the second cavity, and the mask liquid wets the mask towel; the hot-pressing strength of the straight strip seal is improved, so that excessive tearing can be avoided, and the whole mask bag is torn.
Preferably, in the step S3, the process parameters of the lower hot-press edge sealing and the upper hot-press edge sealing are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm.
Through adopting above-mentioned technical scheme, through the technological parameter of control hot pressing banding in this application, can make the banding inseparabler, can not appear the seepage of facial mask liquid.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in this application through widening the width in first complex film and the regional hot pressing banding of the junction part of second complex film, die-cut out handle in hot pressing banding region, therefore handle and complex film are integrated into one piece, need not to bond through the manual work, can realize automated production, reduction in production cost.
2. In the application, the separation parting bead is divided into three sections, two straight strip heat seals and a wavy heat seal for connecting the two straight strip heat seals; wherein the wavy heat seal is positioned at the position of the handle; the hot-pressing strength of the wavy seal is controlled, so that the wavy seal is easier to pull, and the first cavity and the second cavity are communicated; meanwhile, the hot-pressing strength of the straight strip-shaped heat seal is high, and the heat seal is difficult to pull and tear, so that the mask bag can be prevented from being torn excessively by force.
3. In the application, the first composite film and the second composite film are in a mode of combining multiple layers of composite films of different types, the innermost layer adopts a PE-based easy-to-tear film layer, and the outermost layer adopts a high-strength PET or PA film to form a high-strength pull handle layer; the easy-to-tear film layer can enable the wavy heat seal strip to be easily torn off, so that the wavy heat seal strip can be pulled off by the handle without using great force; because the handle is formed by hot-pressing die cutting of two composite films, the strength of the handle can be increased by adopting the high-strength handle layer, and the condition that the handle is torn in the tearing process is avoided.
4. According to the packaging bag material selecting device, the first composite film and the second composite film can be made of different materials according to different storage conditions of the mask liquid and the mask towel, and flexibility of packaging bag material selecting can be improved.
Drawings
Fig. 1 is a physical diagram of a pack bag for a pack of an extrusion mixing type in the background art.
Fig. 2 is a schematic structural view of a dry-wet separation mask pack of the present application.
Figures 3A-F are schematic illustrations of various forms of the dry and wet separation mask pack of the present application during the preparation process.
Fig. 4 is a flow chart of a process for preparing the dry-wet separation mask pack of the present application.
Wherein: 1-a first composite membrane; 2-a second composite membrane; 3-pulling the handle; 4-separating the parting bead; 5-a hot-pressing area;
31-transition edges; 41-a straight strip heat seal; 42-wave-shaped heat seal.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Example 1
The schematic structure of the dry-wet separation mask bag in this embodiment is shown in fig. 2, which includes a first chamber formed by a first composite film 1, a second chamber formed by a second composite film 2, and a separation parting bead 4 between the first chamber and the second chamber, wherein the separation parting bead 4 is provided with a handle 3 integrally formed with the first composite film 1 and the second composite film 2; the pull handle 3 is attached to the second composite film 2; after the lower ends of the first cavity and the second cavity are sealed, placing mask liquid in the first cavity, after the mask towel is placed in the second cavity, finally sealing the upper end; when the mask is used, the handle 3 is turned up, and then the separation parting bead 4 can be pulled according to the direction perpendicular to the mask bag, so that the first cavity and the second cavity are communicated, and the mask liquid can wet the mask towel.
In this embodiment, a process flow chart of preparing a mask bag with dry and wet separation is shown in fig. 4, and a morphology chart of the mask bag in the preparing process is shown in fig. 3a to f, specifically including the following steps:
s1: the first composite film 1 and the second composite film 2 are of an integral structure before being processed, and form diagrams of the first composite film and the second composite film are respectively positioned at the left side and the right side as shown in fig. 3A; feeding by a feeding machine, and then overturning and covering the first composite film 1 on the second composite film 2 by adopting a single-material structure machine, so that the first composite film 1 and the second composite film 2 are orderly overlapped to form an upper-lower structure, wherein the state diagram is shown in fig. 3B; carrying out hot-pressing edge sealing compounding on two ends of the first composite film 1 and the second composite film 2 to form a hot-pressing area 5, wherein the width of the hot-pressing area is 4cm; the hot-press edge sealing process parameters are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm; the state diagram is shown in fig. 3C; the hot-pressing zone 5 is then die-cut according to the shape of the pull handle 3, which forms the transition edge 31 and the pull handle 3; the state diagram is shown in fig. 3D, and at this time, the first composite film 1 and the second composite film 2 form a package, wherein the left and right ends of the package are closed, and the upper and lower sides of the package are opened.
S2, adjusting the bag type through an inverted film mode, taking a transition edge 31 as a central line according to the mode of FIG. 3E, respectively expanding the composite films from the inside to the opposite directions, and then folding the first composite film 1 and the second composite film 2; the state diagram is shown in fig. 3F, and the handle 3 and the transition edge 31 are positioned at two sides of the connection position of the first composite film 1 and the second composite film 2; slightly pressing the handle 3 and the transition edge 31 to the side of the second composite film 2 to enable the handle and the transition edge to be attached to the second composite film 2; then hot pressing is carried out along the edge of the transition edge 31 to form the separation parting bead 4, at this time, the first composite film forms a first cavity, and the second composite film forms a second cavity; and then edge sealing is carried out on the lower end of the facial mask bag, and after the facial mask liquid and the facial mask towel are respectively filled in the two cavities, the upper end of the facial mask bag is edge sealed, so that the facial mask bag with dry and wet separation can be obtained.
In this embodiment, the handle 3 is die-cut through the heat sealing areas 5 of the first composite film 1 and the second composite film 2, so that the handle 3 and the composite film can be integrally formed, mechanical preparation can be realized, manual adhesion of the handle is not needed, and the production process can be simplified.
In this embodiment, the first composite film 1 and the second composite film 2 may be different according to storage requirements of the mask liquid and the mask towel, for example, storage of the mask liquid needs to be protected from light, and then a material of the first composite film 1 storing the mask liquid may be a non-light-transmitting composite film; the mask towel is stored without wall light, so that an opaque composite film is not required in the storage process, and a common transparent composite film is selected; and the transparent composite film is adopted, so that the situation that the facial mask towel and facial mask liquid are compounded can be seen when the facial mask towel is used, and the facial mask can be taken out after the facial mask towel fully absorbs the facial mask liquid.
Example 2
The difference is that the separation bar 4 in embodiment 2 is divided into 3 segments as shown in fig. 2, and includes two straight heat seal bars 41 and a wavy heat seal bar 42 connecting the two straight heat seal bars, wherein the wavy heat seal bar 42 is provided at the handle 3.
In this embodiment, the separation parting bead 4 is divided into 3 sections, and includes a section of wavy heat seal 42, and the wavy shape, when pulling, the stress point can be uneven, so that the wavy heat seal 42 can be pulled apart by adopting a small force at the pull handle 3, thereby enabling the first chamber and the second chamber to be communicated.
Example 3
The point of difference is that the hot pressing process of the straight heat seal 41 in this embodiment is as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm; the hot pressing process of the wavy seal 42 comprises the following steps: the heat sealing pressure is 0.1-0.5 MPa, the heat sealing temperature is 150+/-30 ℃, and the heat sealing strength is 5+/-2N/15 mm.
In this embodiment, the hot pressing process with high strength is performed on the part of the straight heat seal 41, so that the bonding strength is high, and the straight heat seal is difficult to tear; in the hot pressing process of the wavy seal 42 with lower strength, the bonding strength is weaker, so that when the handle 3 is used for pulling, the wavy seal 42 can be pulled easily, the first cavity and the second cavity are communicated, the straight heat seal 42 can not be pulled, and the mask bag can be prevented from being broken due to excessive force.
Example 4
Substantially the same as in example 1, except that there was a difference in step S1 in the preparation process, in this example, step S1 was as follows:
s1: the first composite film 1 and the second composite film 2 are of an integral structure before being processed, and form diagrams of the first composite film and the second composite film are respectively positioned at the left side and the right side as shown in fig. 3A; feeding by a feeding machine, shearing the joint of the first composite film 1 and the second composite film 2 by a double-material structure machine, and forming an upper-lower structure of the first composite film 1 and the second composite film 2 by diversion, wherein the state diagram is shown in fig. 3B; carrying out hot-pressing edge sealing compounding on two ends of the first composite film 1 and the second composite film 2 to form a hot-pressing area 5, wherein the width of the hot-pressing area is 4cm; the hot-press edge sealing process parameters are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm; the state diagram is shown in fig. 3C; the hot-pressing zone 5 is then die-cut according to the shape of the pull handle 3, which forms the transition edge 31 and the pull handle 3; the state diagram is shown in fig. 3D, and at this time, the first composite film 1 and the second composite film 2 form a package, wherein the left and right ends of the package are closed, and the upper and lower sides of the package are opened.
Example 5
In the present embodiment, the film layer structure of the first composite film 1 is as follows: the high-strength pull handle layer, the adhesive layer, the printing ink layer, the adhesive layer, the intermediate layer, the adhesive layer, the barrier layer, the adhesive layer and the easy-to-uncover heat seal layer are sequentially arranged from outside to inside; the film layer structure of the second composite film 2 is as follows: the high-strength pull handle layer, the adhesive layer, the printing ink layer, the adhesive layer, the middle layer, the adhesive layer and the easy-to-uncover heat seal layer are sequentially arranged from outside to inside.
In this embodiment, the film layer structures of the first composite film 1 and the second composite film 2 include a high-strength handle layer and a heat seal layer that is easy to be torn off, and the use of the high-strength handle layer is mainly because the handle 3 in this application is die-cut in the region after the first composite film 1 and the second composite film 2 are hot-pressed and compounded, so that the strength of the handle can be improved by setting the high-strength handle layer, and the surface is broken by the handle in the tearing process. The adoption is easily taken off the heat-seal layer mainly because some in the separation parting bead 4 in this application need tear, makes first cavity and second cavity intercommunication, if adopt the heat-seal layer of non-easily taking off, need use great effort when its handle 3 tears and draws, therefore adopts easily taking off the heat-seal layer can reduce the effort that needs when tearing when can guaranteeing the separation effect.
Example 6
This example is similar to example 5, in that the high strength pull cup layer is a high strength PET film; printing ink layer with PET as base film and printing with ink to obtain printing ink layer; the middle layer is a PET film, and the barrier layer is an aluminum foil film; the easy-to-tear heat seal layer is an easy-to-tear film layer which adopts PE as a base;
the first composite film 1 is prepared by sequentially carrying out dry-process compounding on all layers through an adhesive layer from outside to inside according to the superposition sequence of the films, and specifically comprises the following steps:
carrying out dry-process compounding on the high-strength PET film and the printing ink layer through an adhesive to obtain a double-layer composite film; the PET film of the middle layer and the double-layer composite film (the printing ink layer is compounded with the middle layer) are subjected to dry-method compounding through an adhesive to obtain a three-layer composite film; the three-layer film is compounded (the middle layer is compounded with the aluminum foil film) and also compounded through an adhesive to obtain a four-layer composite film; the four composite films (the aluminum foil film layer and the PE layer are combined) are combined with the PE film to obtain a first composite film 1.
The second composite film 2 is similar to the first composite film 1 in preparation process, except that the aluminum foil film layer and a layer of adhesive are omitted.
By adopting the materials, the first composite film 1 has high strength, can resist external pressure, has good oxygen and moisture blocking effect, good heat resistance, good light reflectivity and glossiness, good shape at high temperature and low temperature, is suitable for high-temperature cooking, and can resist 125 ℃. The second composite film 2 has high strength, can resist external pressure, has good permeability, and can fully observe the mixing condition of the facial mask towel and facial mask liquid.
Example 7
Substantially the same as in example 6, the difference is that the materials of the respective films are different: wherein the high-strength pull handle layer adopts a high-strength PA film; printing ink layer with PA as base film and printing with ink to obtain printing ink layer; the middle layer is a PA film, and the barrier layer is an aluminum foil film; the easy-to-tear heat-sealing layer is an easy-to-tear film layer based on PE.
Example 8
In substantial agreement with examples 6 and 7, the PE-based release film layer had a thickness of 80um and was prepared by a five-layer coextrusion blown film process; the raw material formula adopts polyethylene, polyethylene-vinyl acrylate and polyethylene-acrylic acid are produced according to a specific formula, the first layer, the second layer and the third layer adopt polyethylene resin, the fourth layer adopts polyethylene to polyethylene-vinyl acrylate according to the mass ratio of 1:1, and the fifth layer adopts polyethylene to polyethylene-acrylic acid resin according to the mass ratio of 1:4.
The first layer to the third layer adopt polyethylene resin, so that the integral strength of the film can be improved, the fourth layer adopts a high-strength heat sealing film layer with high viscosity, the fifth layer can form a low-strength heat sealing film layer with low viscosity, the bonding strength of the separation parting bead 4 and other heat sealing areas can be controlled through the strength of a hot pressing process through the structure of the film layer, and the bonding strength of the obtained wave-shaped heat sealing strip 42 is lower by adopting the low-strength heat sealing process at the position of the wave-shaped heat sealing strip 42 of the separation parting bead 4, so that the wave-shaped heat sealing strip 42 is easier to tear; and other parts adopt a high-strength hot-pressing process, so that the adhesive strength is high and the adhesive is not easy to tear.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The mask bag is characterized by comprising a first composite film and a second composite film, wherein the first composite film and the second composite film are laminated and then are composited together through hot-press edge sealing at two ends, a pull handle is obtained through die cutting in a hot-press edge sealing area, and a transition edge is formed between the pull handle and the second composite film; the first composite film and the second composite film take the edge sealing area as a central line, the laminated film is reversely unfolded from the inside to be laminated, and the first composite film and the second composite film are respectively in a folded state; hot-pressing separation parting strips at the joint of the first composite film and the second composite film along the edge sealing area to enable the first composite film to form a first cavity, the second composite film to form a second cavity, the lower ends of the first cavity and the second cavity are edge-sealed, the upper ends of the first cavity and the second cavity are edge-sealed, and any cavity can be selected to store mask liquid; after the facial mask towel is stored in the other cavity, the upper end is sealed.
2. The dry-wet separation mask pack according to claim 1, wherein the first composite membrane is a composite membrane containing a barrier layer, and the formed first chamber is used for storing mask liquid; the second composite film adopts a composite film without a barrier layer, and a second cavity formed by the second composite film is used for placing facial mask tissues; the separation barrier is required to be hot pressed onto the first composite film along the edge seal area.
3. The dry-wet separation mask bag according to claim 1, wherein the first composite film comprises a high-strength pull handle layer, an adhesive layer, a printing ink layer, an adhesive layer, an intermediate layer, an adhesive layer, a barrier layer, an adhesive layer and a removable heat seal layer which are sequentially overlapped from outside to inside; the second composite film has fewer barrier layers than the first composite film, and correspondingly has one less adhesive layer;
wherein: the high-strength pull handle layer is made of a high-strength PET or PA film; printing ink layer with PET or PA film as base film to obtain printing ink layer; the middle film layer is a PET or PA film; the barrier layer is one of an aluminum foil, an aluminizer or an oxidized aluminizer; the easy-to-tear heat seal layer is an easy-to-tear film layer which adopts PE as a base; the layers are sequentially prepared by dry-method compounding through the adhesive layers from outside to inside according to the superposition sequence of the films; either the first composite film or the second composite film is obtained.
4. The dry-wet separation mask pack according to claim 3, wherein the thickness of the PE-based easy-to-tear film layer is 40-120 μm; the preparation method adopts a five-layer coextrusion film blowing process for preparation; the first layer, the second layer and the third layer are made of polyethylene resin, the fourth layer is made of polyethylene and polyethylene-vinyl acrylate according to the mass ratio of 1:1, and the fifth layer is made of polyethylene and polyethylene-acrylic resin according to the mass ratio of 1:4.
5. The dry-wet separation mask bag according to claim 1, wherein the separation division bar comprises two sections of heat sealing bars, the two sections of heat sealing bars are connected through a wavy heat seal, and the wavy heat seal is arranged at the pull handle; the handle is slightly pressed to be attached to the second composite film, and the handle can be turned up when in use.
6. A process for producing a dry-wet separation mask pack according to any one of claims 1 to 5, comprising the steps of:
s1: overlapping the first composite film and the second composite film, then carrying out hot-press edge sealing on two ends to combine the composite films together, and then carrying out die cutting on the hot-press edge sealing area to form a pull handle, wherein a transition edge is formed between the pull handle and the second composite film; at this time, the first composite film and the second composite film form a packaging bag, the left end and the right end of the packaging bag are closed, and the upper side and the lower side of the packaging bag are opened;
s2: the bag type is adjusted in a reverse film mode, the hot edge sealing area is taken as a central line, the overlapped composite film is unfolded from the inside to the opposite direction, the first composite film and the second composite film are respectively in a folding opposite state, at the moment, the formed handles are respectively positioned at two sides of the first composite film, and the transition edges are respectively positioned at two sides of the first composite film;
s3: heat sealing is carried out on the first composite film along the edge of the transition edge to form a separation parting bead, and the first composite film forms a first cavity at the moment; the second composite film forms a second chamber; the lower ends of the first cavity and the second cavity are subjected to hot-press edge sealing, the upper ends are not subjected to edge sealing, and after the first cavity and the second cavity are respectively filled with mask liquid and facial tissues, the upper ends are subjected to hot-press edge sealing.
7. A process for manufacturing a dry-wet separation mask bag according to claim 6, wherein in the step S1, the first composite film and the second composite film are completely identical in size, and are in a connected integral structure before being not overlapped; the first composite film and the second composite film can be overlapped by adopting a single material structure, and any one of the first composite film and the second composite film is turned over to overlap the two; or a double-material structure is adopted to separate the connection positions of the first composite membrane and the second composite membrane, and then the first composite membrane and the second composite membrane are overlapped through diversion.
8. The processing technology of the dry-wet separation mask bag according to claim 6, wherein in the step S1, the width of the hot-press edge-sealing area needs to be more than 3cm, and the hot-press edge-sealing technological parameters are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm.
9. A process for processing a dry-wet separation mask bag according to claim 6, wherein the separation parting bead is divided into three sections, including two straight heat seals and a wave-shaped heat seal connecting the two straight heat seals; the hot pressing process of the straight heat seal strip comprises the following steps: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm; the hot pressing process of the wavy seal strip comprises the following steps: the heat sealing pressure is 0.1-0.5 MPa, the heat sealing temperature is 150+/-300 ℃, and the heat sealing strength is 5+/-2N/15 mm.
10. The process for manufacturing the dry-wet separation mask bag according to claim 6, wherein in the step S3, the process parameters of the lower hot-press edge sealing and the upper hot-press edge sealing are as follows: the heat sealing pressure is 0.2-0.8 MPa, the heat sealing temperature is 200+/-20 ℃, and the heat sealing strength is 12+/-3N/15 mm.
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| CN202211571052.5A CN115924297B (en) | 2022-12-08 | 2022-12-08 | Dry-wet separation mask bag and processing technology thereof |
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| CN117446336B (en) * | 2023-11-02 | 2024-09-10 | 杭州神彩包装印业有限公司 | Aluminum foil yin-yang dry-wet separation pull ring bag and production process |
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| CN115924297A (en) | 2023-04-07 |
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