Soft package assembly with staggered membrane materials on same layer and production process of soft package assembly

Through the production process of staggered membrane materials, the combination of high-speed rotary die-cutting machine and hot melt adhesive layer is adopted to solve the problems of low raw material utilization and uneven splicing in the existing technology, and realize efficient production and low-cost soft package component manufacturing.

CN120756175APending Publication Date: 2025-10-10DONGGUAN JPOND IND CO LTD
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Patent Information

Application Number
CN202511106712.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

When producing soft-pack components with different membrane materials at the same level, the existing technology has problems such as low raw material utilization, low production efficiency, uneven splicing gaps, and easy damage to microfiber leather, which affects product qualification rate and cost.

Method used

The production process of staggered membrane materials is adopted. The PC film layer and the microfiber leather layer are cut and compounded by a high-speed rotary die-cutting machine, combined with the hot melt adhesive layer and the base material layer. Multi-layer high-viscosity film support and ultra-thin micro-viscosity protective film are used to protect the microfiber leather, achieving precise splicing and reducing waste.

Benefits of technology

It improves the utilization rate of raw materials, reduces production costs, improves production yield rate, and achieves more precise splicing effects and equipment utilization.

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Abstract

The invention relates to a soft package assembly with staggered film materials on the same layer and a production process thereof.The soft package assembly comprises a base material layer, a hot melt adhesive layer, three PC film layers and two microfiber leather layers, the three PC film layers and the two microfiber leather layers are arranged on the hot melt adhesive layer on the same layer, and the PC film layers and the microfiber leather layers are arranged in a staggered mode to form a complete splicing layer; the splicing part between the adjacent PC film layer and microfiber leather layer is linear, and the linear gap is less than 0.5 mm; according to the invention, the PC film layer and the microfiber leather material belt are slit and compounded at intervals in a segmented manner, the common edge of the PC film layer and the microfiber leather layer is subjected to die cutting and one-time die cutting molding by adopting the same blade, the upper and lower wastes are respectively discharged, and the lower side wastes are finally discharged; the edge of the PC film layer and the edge of the microfiber leather are partially overlapped and compounded before the first die cutting; the edge of the PC film layer is slightly bent upwards to form a reserved increment, so that a gap between the PC film layer and the microfiber leather layer is less than 0.5 mm, and a more precise splicing effect is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of precision die-cut component production, and in particular to a soft package component with staggered film materials on the same layer and a production process thereof. Background Art

[0002] With the development of the electronics industry, the requirements for the precision of spare parts are becoming increasingly higher. Some high-precision products require the use of soft-package components with different film materials on the same layer. For example, microfiber leather (such as Dingdao microfiber leather, etc.) is spliced ​​on the same layer as the PC film layer (a polymer film made of polycarbonate resin as a base material). If the ordinary process is used to die-cut them separately and then assemble them, there will be problems such as low raw material utilization, low production efficiency, excessive or uneven splicing gaps, and easy damage to the microfiber leather, which will affect the product qualification rate and production costs. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a soft package component having staggered membrane materials on the same layer and a production process thereof.

[0004] The technical solution adopted by the present invention is: a soft package component with staggered film materials on the same layer, the soft package component including a substrate layer, a hot melt adhesive layer, three PC film layers arranged on the hot melt adhesive layer on the same layer, and two microfiber leather layers, and the PC film layers and microfiber leather layers are staggered to form a complete splicing layer, the splicing between adjacent PC film layers and microfiber leather layers is linear and the linear gap is less than 0.5mm; at the bottom edge of the soft package component, the PC film layer coincides with the hot melt adhesive layer and the substrate layer contour line, and at other edges of the soft package component, the contour line edge of the splicing layer is indented by 3.60~3.68mm relative to the contour line of the hot melt adhesive layer and the substrate layer; first functional holes are respectively formed on the PC film layers at the bottom and upper parts of the soft package component; and second functional holes that are in communication are formed on the hot melt adhesive layer and the substrate layer.

[0005] In the above-mentioned soft package component, there are four first functional holes, including two strip-shaped small holes and one large hole arranged in the upper PC film layer, and another large hole arranged on the other lower PC film layer; there are two second functional holes, which intersect with the inner ends of the two strip-shaped small holes respectively.

[0006] The present invention also provides a production process for the soft package component having the above-mentioned staggered film materials arranged on the same layer, the soft package component comprising a substrate layer, a hot melt adhesive layer, a microfiber leather layer and a PC film layer staggered on the hot melt adhesive layer, the production process using a high-speed rotary die-cutting machine, and the production process comprising the following steps: Step a, compound two spaced first protective film material strips on the first bottom film material strip, then compound the microfiber leather material strip with the same width as the first protective film material strip on the two first protective film material strips respectively, and compound the PC film material strip on the spaced area of the first bottom film material strip without the first protective film material strip, and the two side edges of each PC film material strip are respectively compounded on the edges of the adjacent microfiber leather material strip; That is, a compound material strip is formed from bottom to top, which is the first bottom film material strip, the spaced first protective film material strip, the microfiber leather material strip, and the PC film material strip, and the edges of the microfiber leather material strip and the PC film material strip are compounded; Step b, the first circular knife die roller group is used for first time die cutting on the compound material strip, and the straight line boundary line adjacent to the microfiber leather layer and the PC film layer is respectively die cut in the edge overlapping area of the PC film material strip and the microfiber leather material strip on the compound material strip, the die cutting depth of the straight line boundary line is to cut through the microfiber leather material strip, and the first protective film material strip is not cut through, then the PC film material strip waste on the microfiber leather layer is excluded from above, and then the second bottom film material strip and the third bottom film material strip are compounded from below, at this time, the material strip is from bottom to top, which is: the third bottom film material strip, the second bottom film material strip, the first bottom film material strip, the spaced first protective film material strip, the microfiber leather material strip containing edge waste, and the PC film material strip after waste removal, and the edge of the PC film material strip covers the microfiber leather waste; Step c, the second circular knife die roller group is used for second time die cutting on the compound material strip of step b, and the microfiber leather layer two end contour lines and the PC film layer outer edge contour lines required for the finished product are die cut, and the microfiber leather layer two end contour lines and the PC film layer outer edge contour lines form a complete closed contour line, the die cutting depth of the complete closed contour line is just to cut through the first protective film material strip, that is, to completely cut through the PC film material strip and the microfiber leather material strip, then the PC film material strip waste, the microfiber leather material strip waste and the first protective film material strip waste outside the closed contour line are excluded from above, and the third bottom film material strip is excluded from below, at this time, the material strip is from bottom to top, which is: the second bottom film material strip, the first bottom film material strip, the first protective film material block arranged in the complete closed contour line frame, the microfiber leather layer containing edge waste, and the PC film material block after waste removal, and the edge of the PC film material block covers the microfiber leather waste; In step d, at the front and upper part of the running direction of the main material belt, the hot melt adhesive belt is first compounded on the base material film belt through the first heated roller group, and the base material film belt is located below; then the hot melt adhesive belt with its own film is peeled off and the base material film belt and the hot melt adhesive belt are turned through the second heated roller group and then compounded with the main material belt after step c, so that the microfiber leather layer and the PC film material block on the main material belt are completely covered with the hot melt adhesive belt, and then heated by the third heated roller group, and the third die-cutting is performed by the third circular knife die-cutting roller group. The third die-cutting die-cuts the outer frame contour lines of the base material layer and the hot melt adhesive layer on the base material film belt and the hot melt adhesive belt, and the outer frame contour line of the base material layer is consistent with the hot melt The outer frame contour lines of the adhesive layers overlap, and a partial contour line of the outer PC film layer overlaps with the partial contour line of the substrate layer. The outer edge contour lines of the other PC film layers and the microfiber leather layer are all located inside the outer frame contour lines of the substrate layer and the hot melt adhesive layer. Finally, the hot melt adhesive tape, the substrate film tape and the waste outside the PC film layer frame are removed from the top, and the second bottom support film tape, the first bottom support film tape, and the first protective film block and microfiber leather waste attached to the first bottom support film tape are peeled off from the bottom to obtain the finished soft package components separated one by one. The finished products are microfiber leather layers and PC film layers, hot melt adhesive layers, and substrate layers arranged in an alternating manner at the same level from bottom to top.

[0007] Furthermore, in the above-mentioned production process, the die of the first circular die-cutting roller group is provided with four boundary line blades corresponding to the straight boundary lines, and the blade depth of the boundary line blades is appropriate to cut through the microfiber leather material strip without cutting through the first protective film material strip. The die of the first circular die-cutting roller group is also provided with two groups of first set hole blades and first positioning mark line blades that cut through the first protective film material strip, and two groups of first set holes and first positioning mark lines are formed respectively during the first die-cutting; the die of the second circular die-cutting roller group is provided with two groups of complete closed contour line blades corresponding to the complete closed contour lines, and a first hole position blade for forming the first functional hole on the outer PC film layer is also provided, and two groups of second set hole blades and second positioning mark line blades are provided, and the second set holes and second positioning mark lines are formed respectively during the second die-cutting.

[0008] The cutting die of the third circular die-cutting roller group is provided with an outer frame contour line blade corresponding to the outer frame contour line of the substrate layer and the hot melt adhesive layer, and is also provided with a second hole position blade for forming a second functional hole and a third positioning mark line blade for forming a third positioning mark line; the die-cutting depth of the second hole position blade cuts through the first base film material strip, and the formed second functional hole intersects with two small first functional holes, and two second functional holes are formed on the substrate layer and the hot melt adhesive layer.

[0009] The heating temperature of the first heating roller group is 110°C±5°C; the heating temperature of the second heating roller group is 150°C±5°C; and the heating temperature of the third heating roller group is 150°C±5°C.

[0010] The present invention mainly has the following advantages through the above process: Firstly, by cutting the PC film layer and the microfiber leather strips, laminating them in intervals and sections, and using the same blade to die-cut at the common edge of the PC film layer and the microfiber leather layer, the die-cutting and forming can be done in one go, which can minimize waste and improve the utilization rate of raw materials. Secondly, the upper and lower waste materials are removed separately, and the lower waste material is removed last. Because the edge of the PC film layer and the edge of the microfiber leather are partially overlapped and laminated before the first die-cutting, the edge of the PC film layer is slightly bent upward to form a reserve (which is larger than the actual width obtained by straight die-cutting). This can make the gap between the PC film layer and the microfiber leather layer less than 0.5mm, thereby achieving a more precise splicing effect; Third, by hot pressing the bottom PC and hot melt adhesive in one step, the equipment utilization rate is improved, while the assembly process is reduced, labor costs are reduced, and the production yield rate is improved to achieve the purpose of reducing costs; Fourthly, during the die-cutting process, multi-layer high-viscosity film backing and targeted ultra-thin micro-adhesive protective film are used to protect the microfiber leather strips to avoid damage to the microfiber leather during the punching process, reduce poor appearance, improve production yield, and further achieve the purpose of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 、 Figure 2 It is a schematic diagram of the plan and exploded structure of the soft package component of the present invention; Figure 3 It is a schematic flow diagram of the process of the present invention; Figure 3-1 、 Figure 3-2 、 Figure 3-3 Schematic diagrams of die deployment and die-cutting effects of the first circular die-cutting roller group, the second circular die-cutting roller group, and the third circular die-cutting roller group in the present invention; Figure 3-4 yes Figure 3-1 、 Figure 3-2 、 Figure 3-3 Schematic diagram after superimposing the die-cutting effects. DETAILED DESCRIPTION

[0012] like Figure 1 、 Figure 2As shown, the present invention describes a soft package component with staggered film materials at the same level, the soft package component includes a substrate layer 1, a hot melt adhesive layer 2, three PC film layers 3 arranged at the same level on the hot melt adhesive layer 2, and two microfiber leather layers 4, and the PC film layers 3 and microfiber leather layers 4 are staggered to form a complete splicing layer, and the splicing between adjacent PC film layers 3 and microfiber leather layers 4 is linear and the linear gap is less than 0.5mm; at the bottom edge of the soft package component, the PC film layer 3 coincides with the hot melt adhesive layer 2 and the contour line of the substrate layer 1, and at other edges of the soft package component, the contour line edge of the splicing layer is indented by 3.60~3.68mm relative to the contour line of the hot melt adhesive layer 2 and the substrate layer 1; first functional holes 31 are respectively formed on the PC film layers at the bottom and upper parts of the soft package component; and second functional holes 11 that are in communication are formed on the hot melt adhesive layer 2 and the substrate layer 1.

[0013] In the above-mentioned soft package component, there are four first functional holes 31, including two strip-shaped small holes 311 and one large hole 312 arranged in the upper part of the PC film layer 3, and another large hole 313 arranged on the other lower part of the PC film layer 3; there are two second functional holes 11, which intersect with the inner ends of the two strip-shaped small holes 311 respectively.

[0014] Combine Figure 3 、 Figure 3-1 to Figure 3-4 As shown, the present invention also provides a production process for the soft package component having the above-mentioned staggered film materials on the same layer, the soft package component comprising a substrate layer 1, a hot melt adhesive layer 2, a microfiber leather layer 4 and a PC film layer 3 staggered on the hot melt adhesive layer, the production process adopts a high-speed rotary die-cutting machine, and the production process comprises the following steps: Step a: Compound two first protective film strips B1 arranged at intervals on the first supporting film strip T1 (peel off the first supporting film strip T11) and peel off the first protective film strip B11. Then compound microfiber leather strips C1 of the same width as the first protective film strip B1 on the two first protective film strips B1 respectively. Then compound PC film strips P1 on the interval area of ​​the first supporting film strip T1 that is not compounded with the first protective film strip B1. The width of the PC film strip P1 varies according to the position and width of each PC film layer, and the PC film strip The shiny side of the strip P1 faces upward, and the matte side faces the first base film strip T1, and the two side edges of each PC film strip P1 are respectively laminated on the edges of the adjacent microfiber leather strip C1; that is, a composite strip is formed, which is composed of the first base film strip T1, the first protective film strip B1 arranged at intervals, the microfiber leather strip C1, and the PC film strip P1 from bottom to top, and the microfiber leather strip C1 is laminated on the edges of the PC film strip P1; by using the ultra-thin, low-viscosity first protective film strip B1 as a pad under the microfiber leather strip C1, the microfiber leather surface can be protected during the die-cutting process; Step b, performing the first die-cutting on the composite material strip by the first circular die-cutting roller group M1, and die-cutting the linear boundary line M101 adjacent to the microfiber leather layer and the PC film layer in the edge overlapping area of ​​the PC film strip P1 and the microfiber leather strip C1 on the composite material strip, and the die-cutting depth of the die-cutting blade corresponding to the linear boundary line M101 is to cut through the microfiber leather strip C1 without cutting through the first protective film strip B1, and then remove the PC film strip waste P11 located on the microfiber leather strip C1 from the top, and the knife die of the first circular die-cutting roller group M1 is provided with four boundary line blades R101 corresponding to the linear boundary line M101, and the blade depth of the boundary line blade R101 is to cut through the microfiber leather strip C1 without cutting through The first protective film strip B1 is suitable; then the second supporting film strip T2 and the third supporting film strip T3 are compounded from the bottom. At this time, the strips are from bottom to top: the third supporting film strip T3, the second supporting film strip T2, the first supporting film strip T1, the first protective film strip B1 arranged at intervals, the microfiber leather strip C1 containing edge waste, and the PC film strip P1 after waste removal, and the edge of the PC film strip P1 is covered with the microfiber leather waste; at this time, because the edge of the PC film strip P1 is covered with microfiber leather waste, the edge of the PC film layer after molding has a partially arched increment, which can be more tightly spliced ​​with the adjacent microfiber leather layer after removing the microfiber leather waste below, meeting the requirement of a splicing gap of less than 0.5mm; Step c, performing a second die-cutting on the composite material strip of step b by the second circular die-cutting roller group M2, and die-cutting the contour lines M201 at both ends of the microfiber leather layer and the outer edge contour line M202 of the PC film layer required for the finished product, and the contour lines at both ends of the microfiber leather layer and the outer edge contour line of the PC film layer form a complete closed contour line, and the die-cutting depth of the blade corresponding to the complete closed contour line just cuts through the first protective film strip B1, that is, the PC film layer and the microfiber leather layer are completely formed, and then the PC film strip waste P12, microfiber leather strip waste C11 and first protective film strip waste B12 outside the closed contour line are excluded from the top, and the third bottom film strip T3 is excluded from the bottom. At this time, the strips are, from bottom to top, the second bottom film strip T2, the first bottom film strip T1, the first protective film block arranged at intervals and located in the complete closed contour line frame, the microfiber leather layer containing edge waste, and the PC film block after waste discharge, and the edge of the PC film block covers the microfiber leather waste; Step d, in the front and upper part of the main material belt running direction, first use the first heating roller group H1 to compound the hot melt adhesive tape J1 on the base film material belt D1, and the base film material belt D1 is located below; then peel off the hot melt adhesive tape J1 with the film J11, and then use the second heating roller group H2 to turn the base film material belt D1 and the hot melt adhesive tape J1 and then compound them with the main material belt after step c, so that the microfiber leather layer 4 and the PC film material block 3 on the main material belt are completely covered with the hot melt adhesive tape J1, and then heated by the third heating roller group H3; the heating temperature of the first heating roller group is 110℃±5℃, the heating temperature of the second heating roller group is 150℃±5℃, and the heating temperature of the third heating roller group is 150℃±5℃, so that the hot melt adhesive tape J1 is sequentially compounded with the base film The material strip D1 is compounded with the main material strip; then the third die-cutting is performed by the third circular knife die-cutting roller group M3. The third die-cutting cuts the outer frame contour line M301 of the substrate layer and the hot melt adhesive layer on the substrate film strip D1 and the hot melt adhesive strip J1, and the outer frame contour line of the substrate layer overlaps with the outer frame contour line of the hot melt adhesive layer, and a partial contour line of the outer PC film layer overlaps with the partial contour line of the substrate layer. The outer edge contour lines of the other PC film layers and the microfiber leather layer are all located inside the outer frame contour lines of the substrate layer and the hot melt adhesive layer, that is, at the bottom edge of the soft package component, the contour lines of the PC film layer 3, the hot melt adhesive layer 2, and the substrate layer 1 coincide. At other edges of the soft package component, the contour line edge of the splicing layer is indented by 3.60~3.68mm relative to the contour lines of the hot melt adhesive layer and the substrate layer. Finally, the hot melt adhesive tape waste J12, the base film tape waste D11 and the PC film layer waste P13 outside the frame at the bottom edge of the component are removed from the top, and the second bottom film tape T2, the first bottom film tape T1, and the first protective film block attached to the first bottom film tape T1 and the microfiber leather waste are peeled off from the bottom to obtain the finished soft package components separated one by one. The finished products are, from bottom to top, the microfiber leather layer and PC film layer, hot melt adhesive layer, and base material layer arranged alternately at the same level.

[0015] Furthermore, in the above production process, the die of the first circular die-cutting roller group M1 is provided with four boundary line blades R101 corresponding to the straight boundary lines, and the blade depth of the boundary line blade R101 is suitable for cutting through the microfiber leather material strip C1 without cutting through the first protective film material strip B1. The die of the first circular die-cutting roller group M1 is also provided with two groups of first set position hole blades R102 and first positioning mark line blades R103 for cutting through the first protective film material strip, and two groups of first set position holes M102 and first positioning mark lines M103 are formed respectively during the first die-cutting. There are two first positioning mark lines M103, which are Figure 3-1 Medium blue No. 1 and No. 2; The die of the second circular knife die cutting roller group M2 is provided with two groups of complete closed contour line blades R201 corresponding to the complete closed contour line, and is also provided with first hole position blades R202 for forming first function holes 31 on the outer side of the PC film layer, and is provided with two groups of second set position hole blades R203 and second positioning mark line blades R204 for forming second set position holes M203 and second positioning mark lines M204 in the second die cutting, and the second positioning mark line M204 is one, Figure 3-2 Mid black No. 2, and the positioning point of black No. 2 corresponds to the positioning point of blue No. 2 in the first positioning mark line M103.

[0016] The die of the third circular knife die cutting roller group M3 is provided with frame contour line blades R301 corresponding to the frame contour line M301 of the substrate layer 1 and the hot melt adhesive layer 2, and is provided with second hole position blades R302 for forming second function holes 11 and third positioning mark line blades R303 for forming third positioning mark lines M302; the third positioning mark line M302 is two, Figure 3-3 Mid purple No. 1 and No. 2, and the positioning point of purple No. 1 corresponds to the positioning point of blue No. 1 in the first positioning mark line, and the positioning point of purple No. 2 corresponds to the positioning point of black No. 2; the die cutting depth of the second hole position blade R302 cuts through the first supporting film material belt T1, the formed second function hole intersects with two small first function holes, and two second function holes are formed on the substrate layer and the hot melt adhesive layer.

[0017] The process has the following advantages: Firstly, the PC film layer and the microfiber leather material belt are cut and segmented and compounded, and the same blade is used for die cutting at the common edge of the PC film layer and the microfiber leather layer, so that the waste is reduced as much as possible, and the utilization rate of raw materials is improved. Secondly, the upper and lower wastes are discharged respectively, and the lower waste is discharged last. Since the edges of the PC film layer and the microfiber leather layer are partially overlapped and compounded before the first die cutting, the edge of the PC film layer is slightly bent upward to form a reserved amount (more than the actual width obtained by flat die cutting), so that the gap between the PC film layer and the microfiber leather layer is less than 0.5 mm, thereby realizing more precise splicing effect. Thirdly, the bottom PC and the hot melt adhesive are hot-pressed and laminated at one time, which improves the utilization rate of equipment, reduces the assembly process, reduces labor cost, improves the production yield, and achieves the purpose of reducing cost. Fourthly, in the die cutting process, the microfiber leather material belt is protected by multi-layer high-adhesion film supporting and targeted ultra-thin micro-adhesion protective film, so as to avoid damage to the microfiber leather in the punching process, reduce appearance defects, improve production yield, and further achieve the purpose of reducing cost.

[0018] The above embodiments are merely exemplary embodiments for illustrating the principles of the present invention, but the present invention is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and essence of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A soft package component with staggered membrane materials on the same layer, characterized by: The soft package component includes a substrate layer, a hot melt adhesive layer, three PC film layers arranged in the same layer on the hot melt adhesive layer, and two microfiber leather layers, and the PC film layers and microfiber leather layers are staggered to form a complete splicing layer, and the splicing between adjacent PC film layers and microfiber leather layers is linear and the linear gap is less than 0.5mm; at the bottom edge of the soft package component, the contour lines of the PC film layer coincide with those of the hot melt adhesive layer and the substrate layer, and at other edges of the soft package component, the contour lines of the splicing layer are indented by 3.60~3.68mm relative to the contour lines of the hot melt adhesive layer and the substrate layer; first functional holes are respectively formed on the PC film layers at the bottom and top of the soft package component; and second functional holes that are in communication are formed on the hot melt adhesive layer and the substrate layer.

2. The soft package assembly with staggered membranes on the same layer according to claim 1, characterized in that: There are four first functional holes, including two strip-shaped small holes and one large hole arranged in the upper PC film layer, and another large hole arranged in the other lower PC film layer; there are two second functional holes, which intersect with the inner ends of the two strip-shaped small holes respectively.

3. A production process for a soft package component having staggered film materials arranged on the same layer, the soft package component comprising a substrate layer, a hot melt adhesive layer, a microfiber leather layer staggered on the hot melt adhesive layer, and a PC film layer, the production process using a high-speed rotary die-cutting machine, characterized by: The production process includes the following steps: Step a: Compound two first protective film strips arranged at intervals on the first supporting film strip, then compound microfiber leather strips of the same width as the first protective film strips on the two first protective film strips, and then compound PC film strips on the interval areas of the first supporting film strip that are not compounded with the first protective film strips (with the shiny side of the PC film strip facing upward and the matte side facing the first supporting film strip); and compound both side edges of each PC film strip on the edges of adjacent microfiber leather strips; thus, forming a composite strip comprising, from bottom to top, the first supporting film strip, the first protective film strips arranged at intervals, the microfiber leather strip, and the PC film strip, and compounding the microfiber leather strip with the edges of the PC film strip; Step b, performing the first die-cutting on the composite material strip by the first circular die-cutting roller group, and die-cutting the linear boundary line adjacent to the microfiber leather layer and the PC film layer in the edge overlapping area of ​​the PC film strip and the microfiber leather strip on the composite material strip, and the die-cutting depth of the linear boundary line is to cut through the microfiber leather strip but not cut through the first protective film strip, and then remove the PC film strip waste located on the microfiber leather strip from the top, and then composite the second bottom film strip and the third bottom film strip from the bottom, at this time, the material strips are from bottom to top: the third bottom film strip, the second bottom film strip, the first bottom film strip, the first protective film strip arranged at intervals, the microfiber leather strip containing edge waste, and the PC film strip after waste removal, and the edge of the PC film strip covers the microfiber leather waste; Step c, performing a second die-cutting on the composite material strip of step b by a second circular die-cutting roller group, and die-cutting the contour lines of the microfiber leather layer at both ends and the outer edge contour line of the PC film layer required for the finished product, and the contour lines of the microfiber leather layer at both ends and the outer edge contour line of the PC film layer form a complete closed contour line, and the die-cutting depth of the complete closed contour line just cuts through the first protective film strip, that is, completely cuts through the PC film strip and the microfiber leather strip, and then removes the PC film strip waste, microfiber leather strip waste and first protective film strip waste outside the closed contour line from the top, and removes the third bottom film strip from the bottom. At this time, the strips are, from bottom to top, the second bottom film strip, the first bottom film strip, the first protective film block arranged at intervals and located in the complete closed contour line frame, the microfiber leather layer containing edge waste, and the PC film block after waste removal, and the edge of the PC film block is covered with microfiber leather waste; In step d, at the front and upper part of the running direction of the main material belt, the hot melt adhesive belt is first compounded on the base material film belt through the first heated roller group, and the base material film belt is located below; then the hot melt adhesive belt with its own film is peeled off and the base material film belt and the hot melt adhesive belt are turned through the second heated roller group and then compounded with the main material belt after step c, so that the microfiber leather layer and the PC film material block on the main material belt are completely covered with the hot melt adhesive belt, and then heated by the third heated roller group, and the third die-cutting is performed by the third circular knife die-cutting roller group. The third die-cutting die-cuts the outer frame contour lines of the base material layer and the hot melt adhesive layer on the base material film belt and the hot melt adhesive belt, and the outer frame contour line of the base material layer is consistent with the hot melt The outer frame contour lines of the adhesive layers overlap, and a partial contour line of the outer PC film layer overlaps with the partial contour line of the substrate layer. The outer edge contour lines of the other PC film layers and the microfiber leather layer are all located inside the outer frame contour lines of the substrate layer and the hot melt adhesive layer. Finally, the hot melt adhesive tape, the substrate film tape and the waste outside the PC film layer frame are removed from the top, and the second bottom support film tape, the first bottom support film tape, and the first protective film block and microfiber leather waste attached to the first bottom support film tape are peeled off from the bottom to obtain the finished soft package components separated one by one. The finished products are microfiber leather layers and PC film layers, hot melt adhesive layers, and substrate layers arranged in an alternating manner at the same level from bottom to top.

4. The production process of a soft package component with staggered membrane materials on the same layer according to claim 3, characterized in that: The first circular die-cutting roller group is provided with four boundary line blades corresponding to the straight boundary lines, and the blade depth of the boundary line blades is appropriate to cut through the microfiber leather material strip without cutting through the first protective film material strip. The first circular die-cutting roller group is also provided with two groups of first set hole blades and first positioning mark line blades for cutting through the first protective film material strip, and two groups of first set holes and first positioning mark lines are formed during the first die-cutting respectively; the second circular die-cutting roller group is provided with two groups of complete closed contour line blades corresponding to the complete closed contour lines, and a first hole position blade for forming the first functional hole on the outer PC film layer, and two groups of second set hole blades and second positioning mark line blades are provided, which form the second set holes and second positioning mark lines respectively during the second die-cutting.

5. The production process of a soft package component with staggered membrane materials on the same layer according to claim 3, characterized in that: The cutting die of the third circular die-cutting roller group is provided with an outer frame contour line blade corresponding to the outer frame contour line of the substrate layer and the hot melt adhesive layer, and is also provided with a second hole position blade for forming a second functional hole and a third positioning mark line blade for forming a third positioning mark line; the die-cutting depth of the second hole position blade cuts through the first base film material strip, and the formed second functional hole intersects with two small first functional holes, and two second functional holes are formed on the substrate layer and the hot melt adhesive layer.

6. The production process of a soft package component having staggered membrane materials on the same layer according to claim 3, characterized in that: The heating temperature of the first heating roller group is 110°C±5°C; the heating temperature of the second heating roller group is 150°C±5°C; and the heating temperature of the third heating roller group is 150°C±5°C.