CN103587149A - Travelling case shell material and its preparation method - Google Patents
Travelling case shell material and its preparation method Download PDFInfo
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- CN103587149A CN103587149A CN201310535914.3A CN201310535914A CN103587149A CN 103587149 A CN103587149 A CN 103587149A CN 201310535914 A CN201310535914 A CN 201310535914A CN 103587149 A CN103587149 A CN 103587149A
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Abstract
The invention discloses a travelling case shell material and its preparation method. According to the preparation method, a bonding layer is additionally arranged between the surface layer of a composite honeycomb plate and a honeycomb core, a pre-pressing die-forming die cooperated hot press molding means is adopted, comprehensive analysis and creative matching are carried out through the joint action and mutual influence of material, thickness, density, melting point, heat shrinkage and other material performance parameters and hot pressing technological parameters, so that preparation of a special shaped honeycomb board can be realized, and the problems of honeycomb core breaking, surface layer folding, local fracture, surface defect, distortion and the like existing in the prior art can be avoided. The travelling case shell material prepared according to the technical scheme involved in the invention has the advantages of high performance price ratio, good rigidity, light weight, environmental protection, and good shock resistance.
Description
Technical field
The invention belongs to case and bag field, relate in particular to a kind of luggage case material and preparation method thereof.
Background technology
Case and bag are as the requisite one way of life articles for use of people, and people ceaselessly develop at present and test various materials and make case and bag.The case and bag of lightweight are the emphasis of current novel case and bag reform.It is more convenient, more comfortable that the case and bag of lightweight can make people travel away from home, and can improve people's life, reduces the sense tired out of journey, can be convenient for carrying more article, increases the facility of journey.Yet the material that really can be used for manufacturing lightweight case and bag housing is actually rare.Plastics are materials that specific strength is higher, and mouldability is also fairly good, and people select a large amount of thermoplastics to manufacture case and bag conventionally, as EVA, and ABS, PC etc.EVA material flexibility is good, but rigidity is not enough, at the process need skeleton of making case and bag, supports, and this has just increased the operation of making, and EVA material has special odor, affect user's figure health; ABS price is more expensive, and has limitation aspect impact resistance, at it, receives when being greater than its anti-tensile impacts easily broken; PC engineering plastics poor mobile performance, injection moulding process is more difficult.Expanded material is also that a kind of lightweight case and bag housing is selected, but expanded material price is high, sizing intensity difference, and application is also limited.Therefore, case and bag manufacturer is finding that cost performance is high always, rigidity better, light-weight environment-friendly, box material that shock resistance is good, to meet consumer's more and more higher expectation.
Publication number is that the patent documentation of CN102689458A discloses a kind of cellular board and preparation method thereof, and this honeycomb board has the advantages such as high-strength light, invention human desires by this material for the preparation of luggage case material.Polypropylene honeycomb core has certain structural rigidity, unit square meter is lightweight, but polypropylene honeycomb core is honeycomb sheet material, the poor ductility of material on in-plane, use conventional hot-press technology to be pressed into special-shaped case material very difficult, there will be the situations such as honeycomb core breaks, surface layer fold, local fracture, appearance defect, bubbling, distortion, cannot make satisfactory luggage case material.
Summary of the invention
In order to solve above-mentioned technical problem, the object of this invention is to provide a kind of luggage case material and preparation method thereof, by material and technique are improved, realized the preparation of special-shaped honeycomb board, avoided the defects such as conventional honeycomb core breaks, surface layer fold, local fracture, defect, distortion, cost performance is high, rigidity is better, light-weight environment-friendly, shock resistance are good.
To achieve the above object, the present invention has adopted following technical scheme:
A preparation method for luggage case material, comprises the steps:
1) selecting thickness is that 6～10mm, density are 60～120kg/m
3polypropylene honeycomb core as skeleton; Select fusing point higher than 200 ℃, under 250 ℃ of high temperature, percent thermal shrinkage is that 4%～8%， unit's square meter weight is that the cloth of 60～250 grams is as outer coversheet; Select fusing point higher than 200 ℃, the nonwoven that percent thermal shrinkage is 4%～8% under 250 ℃ of high temperature, film cloth, woven dacron or nylon cloth are as bottom surface layer; To select thickness be 0.04～0.2mm, fusing point at the hot melt adhesive film of 100～180 ℃ or the multilayer complex films tack coat as polypropylene honeycomb core and cloth;
2) above-mentioned material is carried out to the compound composite honeycomb board that obtains of heat according to the folded formula formula of " outer coversheet cloth/adhesive linkage/polypropylene honeycomb core crab/adhesive linkage/bottom surface layer cloth " by thermal composite machine, the thickness deviation of composite honeycomb board is controlled in +/-0.3mm;
3) above-mentioned composite honeycomb board is placed in dull and stereotyped heater and is preheated to 110～160 ℃, exerting pressure is 0.5～2bar; This flat board heater is single-side heating, the bottom surface layer cloth contact heating surface of composite honeycomb board;
4) preheated composite honeycomb board be placed between upper and lower pre-pressing mold and compress; During pre-pressing mold is
5) shaping upper and moulding counterdie matched moulds pressurization sizing; The matched moulds time of shaping upper and moulding counterdie was controlled at for 0.5～3 second, and the matched moulds clearance control of shaping upper and moulding counterdie is at 70～90% of composite honeycomb plate thickness, cooling and shaping after matched moulds;
6) after cooling, obtain luggage case material.
As preferably, described outer coversheet cloth is the dapple cloth of tool.
As preferably, in described step 4), the flexible sheet material of pad on the steel plate of pre-pressing mold, pre-pressing mold uses the mode of hydraulic pressure or air pressure that preheated composite honeycomb board is compressed, and pressure is applied on four angles of pre-pressing mold.
The luggage case material of preparing according to above-mentioned preparation method, is formed with projection, and top wall plane and the included angle B between sidewall of projection are 5～85 °; This luggage case material take polypropylene honeycomb core as in the middle of skeleton, above polypropylene honeycomb core, be provided with successively tack coat A and outer coversheet cloth, be provided with successively tack coat B and inner surface material distribution below polypropylene honeycomb core.
The present invention is owing to having adopted above technical scheme, by setting up tack coat between the surface layer at composite honeycomb board and honeycomb core, the thermoforming way that adopts pre-pressing mold and shaping mould to coordinate, by to the synergy of the material property parameters such as material, thickness, density, fusing point, percent thermal shrinkage and hot pressing parameters, interact and comprehensively analyze and creative coupling, finally realized the preparation of special-shaped honeycomb board, the problems such as honeycomb core breaks, surface layer fold, local fracture, blemish, the distortion the problem includes: of having avoided prior art problem.The invention has the beneficial effects as follows:
1, the case and bag housing making is Qing， unit's square meter weight 600-1200g only very;
2, realized the preparation of cellular board profile shapes, technique rationally, superior product quality, cost performance is high, rigidity is better, light-weight environment-friendly, shock resistance are good;
3, the case and bag that use this case and bag housing to make have good toughness, are subject to colliding not fragile;
4, use this case and bag housing not need other skeleton support member, can significantly reduce the weight of FCL;
5, this sheet material environmental protection, recoverable, does not affect health.
Accompanying drawing explanation
Fig. 1 is the structural representation of polypropylene honeycomb core crab;
Fig. 2 is hot pressing schematic diagram of the present invention;
Fig. 3 is the structural representation of pre-pressing mold;
Fig. 4 is the structural representation of case material of the present invention;
Fig. 5 is the A place partial enlarged drawing of Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
Embodiment 1:
A preparation method for luggage case material, comprises the steps:
1) selecting thickness is that 6～10mm, density are 60～120kg/m
3polypropylene honeycomb core as skeleton, as shown in Figure 1, the patent documentation that the preparation method of polypropylene honeycomb core is CN102689458A referring to publication number, be that described polypropylene honeycomb core is: by many double-layer composite pipes, be spliced into cellular, the skin of the adjacent double-layer composite pipe of being close to bonds together, and the end face fusion of the adjacent two-layer compound inner tube layer of being close to forms glue knurl; The upper and lower surface of described polypropylene honeycomb core refers to respectively the many described faces that double-layer composite pipe two ends form; Select fusing point higher than 200 ℃, under 250 ℃ of high temperature, percent thermal shrinkage is that 4%～8%， unit's square meter weight is that the cloth of 60～250 grams is as outer coversheet; Select fusing point higher than 200 ℃, the nonwoven that percent thermal shrinkage is 4%～8% under 250 ℃ of high temperature, film cloth, woven dacron or nylon cloth are as bottom surface layer; To select thickness be 0.04～0.2mm, fusing point at the hot melt adhesive film of 100～180 ℃ or the multilayer complex films tack coat as polypropylene honeycomb core and cloth;
2) above-mentioned material is carried out to the compound composite honeycomb board that obtains of heat according to the folded formula formula of " outer coversheet cloth/adhesive linkage/polypropylene honeycomb core crab/adhesive linkage/bottom surface layer cloth " by thermal composite machine, the thickness deviation of composite honeycomb board is controlled in +/-0.3mm;
3) above-mentioned composite honeycomb board is placed in dull and stereotyped heater and is preheated to 110～160 ℃, exerting pressure is 0.5～2bar; This flat board heater is single-side heating, the bottom surface layer cloth contact heating surface of composite honeycomb board;
4) as shown in Figure 2, preheated composite honeycomb board 3 be placed between upper and lower pre-pressing mold 2,4 and compress; As shown in Figure 3, the smooth steel plate that pre-pressing mold 2,4 is middle hollow out, pre-pressing mold is between shaping upper 1 and moulding counterdie 5, and match with the concavo-convex position on shaping upper 1 and moulding counterdie 5 in the middle hollow out position of pre-pressing mold 2,4; Pre-pressing mold adopts the preferential pressure controling mode of thickness, and the matched moulds clearance control of upper and lower pre-pressing mold is at 20～80% of composite honeycomb plate thickness, and preload pressure is 0.5～5bar;
5) shaping upper and moulding counterdie matched moulds pressurization sizing; The matched moulds time of shaping upper and moulding counterdie was controlled at for 0.5～3 second, and the matched moulds clearance control of shaping upper and moulding counterdie is at 70～90% of composite honeycomb plate thickness, cooling and shaping after matched moulds;
6) after cooling, obtain luggage case material.Take out the special-shaped cellular board of sizing, pruning corner is standby.
In the present embodiment, described outer coversheet cloth is the dapple cloth of tool.In described step 4), the flexible sheet material of pad on the steel plate of pre-pressing mold, pre-pressing mold uses the mode of hydraulic pressure or air pressure that preheated composite honeycomb board is compressed, and pressure is applied on four angles of pre-pressing mold.Described matched moulds gap refers to the gap between upper and lower mould profile when mould is completely closed, and ordinary circumstance is decided to be the thickness of a profiled member.
The luggage case material of preparing according to above-mentioned preparation method, as shown in Figure 4, is formed with projection, and top wall 61 planes of projection and the included angle B between sidewall 62 are 5～85 °; As shown in Figure 5, this luggage case material be take polypropylene honeycomb core 31 as middle skeleton, and polypropylene honeycomb core 31 is provided with tack coat A33 and outer coversheet cloth 32 above successively, and polypropylene honeycomb core 31 is provided with tack coat B34 and inner surface material distribution 35 below successively.
It is emphasized that: be only preferred embodiment of the present invention above, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a preparation method for luggage case material, is characterized in that, comprises the steps:
1) selecting thickness is that 6～10mm, density are 60～120kg/m
3polypropylene honeycomb core as skeleton; Select fusing point higher than 200 ℃, under 250 ℃ of high temperature, percent thermal shrinkage is that 4%～8%， unit's square meter weight is that the cloth of 60～250 grams is as outer coversheet; Select fusing point higher than 200 ℃, the nonwoven that percent thermal shrinkage is 4%～8% under 250 ℃ of high temperature, film cloth, woven dacron or nylon cloth are as bottom surface layer; To select thickness be 0.04～0.2mm, fusing point at the hot melt adhesive film of 100～180 ℃ or the multilayer complex films tack coat as polypropylene honeycomb core and cloth;
2) above-mentioned material is carried out to the compound composite honeycomb board that obtains of heat according to the folded formula formula of " outer coversheet cloth/adhesive linkage/polypropylene honeycomb core crab/adhesive linkage/bottom surface layer cloth " by thermal composite machine, the thickness deviation of composite honeycomb board is controlled in +/-0.3mm;
3) above-mentioned composite honeycomb board is placed in dull and stereotyped heater and is preheated to 110～160 ℃, exerting pressure is 0.5～2bar; This flat board heater is single-side heating, the bottom surface layer cloth contact heating surface of composite honeycomb board;
4) preheated composite honeycomb board be placed between upper and lower pre-pressing mold and compress; The smooth steel plate that pre-pressing mold is middle hollow out, pre-pressing mold is between shaping upper and moulding counterdie, and match with the concavo-convex position on shaping upper and moulding counterdie in the middle hollow out position of pre-pressing mold; Pre-pressing mold adopts the preferential pressure controling mode of thickness, and the matched moulds clearance control of upper and lower pre-pressing mold is at 20～80% of composite honeycomb plate thickness, and preload pressure is 0.5～5bar;
5) shaping upper and moulding counterdie matched moulds pressurization sizing; The matched moulds time of shaping upper and moulding counterdie was controlled at for 0.5～3 second, and the matched moulds clearance control of shaping upper and moulding counterdie is at 70～90% of composite honeycomb plate thickness, cooling and shaping after matched moulds;
6) after cooling, obtain luggage case material.
2. the preparation method of a kind of luggage case material according to claim 1, is characterized in that, described outer coversheet cloth is the dapple cloth of tool.
3. the preparation method of a kind of luggage case material according to claim 1, it is characterized in that, in described step 4), the flexible sheet material of pad on the steel plate of pre-pressing mold, pre-pressing mold uses the mode of hydraulic pressure or air pressure that preheated composite honeycomb board is compressed, and pressure is applied on four angles of pre-pressing mold.
4. the luggage case material of preparing according to the preparation method described in claim 1 or 2 or 3, is formed with projection, and top wall (61) plane of projection and the included angle B between sidewall (62) are 5～85 °; This luggage case material be take polypropylene honeycomb core (31) as middle skeleton, polypropylene honeycomb core (31) is provided with tack coat A(33 above successively) and outer coversheet cloth (32), polypropylene honeycomb core (31) is provided with tack coat B(34 below successively) and inner surface material distribution (35).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310535914.3A CN103587149B (en) | 2013-11-01 | 2013-11-01 | Luggage case material and preparation method thereof |
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| CN201310535914.3A CN103587149B (en) | 2013-11-01 | 2013-11-01 | Luggage case material and preparation method thereof |
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| CN103587149B CN103587149B (en) | 2015-09-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269885A (en) * | 2015-11-04 | 2016-01-27 | 温州市瓯海凯士箱包厂 | Preparation method of luggage shell |
| CN105365318A (en) * | 2014-08-29 | 2016-03-02 | 申旭全 | PTFE multi-layer composite film and preparation method thereof |
| CN109177411A (en) * | 2018-10-25 | 2019-01-11 | 温州永立箱包有限公司 | A kind of preparation method of box material |
| CN109263232A (en) * | 2018-09-21 | 2019-01-25 | 江苏瑞康安全装备有限公司 | A kind of preparation method of luggage case material |
| CN109890986A (en) * | 2016-10-26 | 2019-06-14 | 弗劳扶手椅股份公司 | It is used in particular for providing the ribbing method of leather covered object |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2209153A (en) * | 1987-08-28 | 1989-05-04 | Champa Namgyal | Air cases |
| CN201046615Y (en) * | 2007-04-29 | 2008-04-16 | 刘胜祥 | Honeycomb paper sandwich panel steel die hot press |
| DE202007000612U1 (en) * | 2007-01-10 | 2008-05-15 | PARAT-Werk Schönenbach GmbH + Co. KG | Device for transporting and / or storing objects |
-
2013
- 2013-11-01 CN CN201310535914.3A patent/CN103587149B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2209153A (en) * | 1987-08-28 | 1989-05-04 | Champa Namgyal | Air cases |
| DE202007000612U1 (en) * | 2007-01-10 | 2008-05-15 | PARAT-Werk Schönenbach GmbH + Co. KG | Device for transporting and / or storing objects |
| CN201046615Y (en) * | 2007-04-29 | 2008-04-16 | 刘胜祥 | Honeycomb paper sandwich panel steel die hot press |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105365318A (en) * | 2014-08-29 | 2016-03-02 | 申旭全 | PTFE multi-layer composite film and preparation method thereof |
| CN105365318B (en) * | 2014-08-29 | 2018-03-13 | 申旭全 | PTFE multilayer complex films and preparation method |
| CN105269885A (en) * | 2015-11-04 | 2016-01-27 | 温州市瓯海凯士箱包厂 | Preparation method of luggage shell |
| CN109890986A (en) * | 2016-10-26 | 2019-06-14 | 弗劳扶手椅股份公司 | It is used in particular for providing the ribbing method of leather covered object |
| CN109263232A (en) * | 2018-09-21 | 2019-01-25 | 江苏瑞康安全装备有限公司 | A kind of preparation method of luggage case material |
| CN109177411A (en) * | 2018-10-25 | 2019-01-11 | 温州永立箱包有限公司 | A kind of preparation method of box material |
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| CN103587149B (en) | 2015-09-02 |
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