CN103789461A - Butt joint process of polyurethane (PU) leathers - Google Patents
Butt joint process of polyurethane (PU) leathers Download PDFInfo
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- CN103789461A CN103789461A CN201410051227.9A CN201410051227A CN103789461A CN 103789461 A CN103789461 A CN 103789461A CN 201410051227 A CN201410051227 A CN 201410051227A CN 103789461 A CN103789461 A CN 103789461A
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- butt joint
- butt
- edge
- edge strip
- skin
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Abstract
The invention relates to a butt joint process of polyurethane (PU) leathers. The butt joint process comprises the following steps: a, respectively spreading glue on surfaces of butt joint edges along a first butt joint side and a second butt joint side; b, preparing an auxiliary plate with a datum line and respectively gluing the first butt joint side and the second butt joint side on the auxiliary plate along the datum line; c, covering the butt joint seam of the first butt joint side and the second butt joint side with a PU edge strip, wherein the center line of the PU edge strip coincides with the datum line; d, integrally putting the first butt joint side and the second butt joint side which are covered with the PU edge strip and the auxiliary plate on a working platform of a high frequency machine and pressing a high temperature press plate of the high frequency machine along the surface of the PU edge strip to ensure that the PU edge strip is integrally combined with the first butt joint side and the second butt joint side; and e, finally taking the auxiliary plate down and cutting the surplus PU edge strip at two ends of the butt joint off. By adopting the butt joint process disclosed by the invention, seamless jointing is realized between leathers; the butt joint process is friendly to environment and high in production efficiency; the obtained jointed leathers are attractive in appearance.
Description
technical field:
The present invention relates to leather substance manufacture technology field, refer in particular to a kind of PU skin butt-joint process.
background technology:
Leather substance, in the time making product, will carry out according to shape of product, size etc. the operations such as cutting, docking conventionally.In the prior art, the docking of leather substance is normally adopted to the mode that glue is bonding or needlework are sewed, always have finedraw at joint and exist, make product not attractive in appearance; And adopt the bonding not environmental protection of mode of glue, and non-refractory, easily split and melt and come off, cause the non-constant of cladding cementability, product is not long work-ing life.In addition, cladding surface in the course of processing can adopt ink printing pattern color etc., and the unstable unfairness of joint also easily causes printing effect not good, and colour darkness differs, and there is no stereoscopic sensation, affects cladding surface touch.
summary of the invention:
The object of the invention is to overcome the weak point of currently available products, a kind of PU skin butt-joint process is provided.
The technical scheme that the present invention realizes its object employing is: a kind of PU skin butt-joint process, and for docking the first butt joint edge and the second butt joint edge, this butt-joint process comprises following steps:
A. carry out coated glue along the joint edge surface of the first butt joint edge and the second butt joint edge respectively;
B. prepare an accessory plate with reference line, the first butt joint edge and the second butt joint edge are sticked on accessory plate along reference line respectively;
C. on the butt seam of the first butt joint edge, the second butt joint edge, cover a PU edge strip, and PU edge strip center line overlaps with reference line;
D. the first butt joint edge of the attached PU of building edge strip, the second butt joint edge and accessory plate entirety are placed in to cycle machine work top, along the surface pressing of PU edge strip, PU edge strip and the first butt joint edge, the second butt joint edge are combined as a whole high temperature pressing plate high-frequency;
E. finally take off accessory plate, and PU edge strip unnecessary joint two ends is cut off.
In above-mentioned technique, the width of described PU edge strip is preferably 1mm-1000mm, the PU edge strip of each attached 1-500mm width on the first butt joint edge, the second butt joint edge after adhering to.
Described PU skin is one for making the monoblock type PU skin of leather sheath, and its length range is at 1-1000mm, and width range is at 1-1000mm.
In described step c, cover PU edge strip on butt seam before, first use the pressing mold identical with PU edge strip shape on butt seam, impress out one with the identical concave surface of PU edge strip shape, the degree of depth that makes concave surface is the 1/10-2/3 of the thickness of PU edge strip, then PU edge strip is covered on butt seam; And then carry out subsequent step.
On this basis, can also replace color printing with cladding docking, at any place of the first butt joint edge or the second butt joint edge, the concave surface of first using the pressing mold impression one that matches with PU skin shape to be replaced and PU skin shape to be replaced to match, the degree of depth of concave surface is the 1/10-2/3 of PU skin thickness to be replaced, again PU skin to be replaced is placed in to this concave surface, then carries out carrying out hot pressing fusion with cycle machine.
Adopt butt-joint process of the present invention, cladding directly docks with cladding, realizes seamless combination between cladding, and environmental protection is attractive in appearance and production efficiency is high, and the strong docking structure of cementation is firm, wear-resisting.
accompanying drawing explanation:
Fig. 1, Fig. 2 stick to the schematic diagram on accessory plate while being the PU skin docking in the present invention;
Fig. 3, Fig. 4 are the schematic diagram of the another kind of embodiment of the present invention;
Fig. 5 is the schematic diagram of curve docking of the present invention;
Fig. 6 is the schematic diagram of an embodiment of the present invention handle;
Fig. 7, Fig. 8 are the schematic diagram of the third embodiment of the present invention.
embodiment:
Below in conjunction with specific embodiments and the drawings, the present invention is further described.
Shown in Fig. 1, Fig. 2, PU skin butt-joint process of the present invention, for docking the first butt joint edge 1 and the second butt joint edge 2, this butt-joint process comprises following steps:
A. be coated with and hold up glue 3 along the joint edge surface of the first butt joint edge 1 and the second butt joint edge 2 respectively;
B. prepare an accessory plate 4 with reference line 41, the first butt joint edge 1 and the second butt joint edge 2 are sticked on accessory plate 4 along reference line 41 respectively;
C. on the butt seam of the first butt joint edge 1, the second butt joint edge 2, cover a PU edge strip 5, and PU edge strip 5 center lines overlap with reference line 41; Be that PU edge strip half-and-half sticks to the first butt joint edge 1 and the second butt joint edge 2 surfaces, make whole joint uniformity, accurately firm; Between PU edge strip 5 and PU skin, rely on itself faint viscosity can be temporarily bonding, come off without worrying;
D. the first butt joint edge 1, the second butt joint edge 2 and accessory plate 4 entirety of the attached PU of building edge strip 5 are placed in to cycle machine work top, along the surperficial pressing of PU edge strip 5, PU edge strip 5 and the first butt joint edge 1, the second butt joint edge 2 are combined as a whole high temperature pressing plate high-frequency;
E. finally take off accessory plate 4, and PU edge strip unnecessary joint two ends is cut off.
In above-mentioned technique, the width of described PU edge strip 5 is preferably 1-1000mm, the PU edge strip of each attached 1-500mm width on the first butt joint edge, the second butt joint edge after adhering to.The parameters such as the size of PU skin, thickness, shape can arbitrarily change, because the size according to specific product decides.
Described PU skin is one for making the monoblock type PU skin of leather sheath, and its length range is at 1-1000 mm, and width range is at 1-1000 mm.
In addition, in conjunction with Fig. 3, embodiment illustrated in fig. 4, it is in described step c, cover PU edge strip 5 on butt seam before, first use the pressing mold identical with PU edge strip 5 shapes on butt seam, impress out one with the identical concave surface 50 of PU edge strip 5 shapes, the degree of depth that makes concave surface 50 is the 1/10-2/3 of the thickness of PU edge strip 5, then PU edge strip 5 is covered on the concave surface 50 of butt seam; And then carry out subsequent step.The benefit of doing is like this after can making PU edge strip and butt seam pressing be integrated, and PU edge strip surface is mutually concordant with the surface of two butt joint edges, more beautiful and clean.
As shown in Figure 5, the present invention not only can carry out straight line docking, also can realize curve docking.Its method steps is with aforementioned consistent.
Technique of the present invention can be made PU leather sheath for two opposite side docking of same PU skin and (for example be made the grip of golf club or the grip of other clubs etc. with same PU cladding, as shown in Figure 6), also can be used for the docking between different PU skins, also can be used for docking of PU skin and other unlike material claddings.
On this basis, shown in Fig. 7-Fig. 8, can also replace color printing with cladding docking, on any place 7 of the first butt joint edge or the second butt joint edge, the concave surface of first using the pressing mold impression one that matches with PU skin 6 shapes to be replaced and PU skin 6 shapes to be replaced to match, the degree of depth of concave surface is the 1/10-2/3 of PU skin 6 thickness to be replaced, then PU skin to be replaced is placed in to this concave surface, carry out again carrying out hot pressing fusion with cycle machine, thereby form and main body distinct colors pattern.
Obviously, above-mentioned is simple embodiment of the present invention, and each cladding profile, lines, color etc. can design arbitrarily according to demand.
Adopt butt-joint process of the present invention, cladding directly docks with cladding, realizes seamless combination between cladding, and environmental protection is attractive in appearance and production efficiency is high, and the strong docking structure of cementation is firm, wear-resisting.After the leather sheath moulding that adopts the inventive method to make, can directly be enclosed within on the handle of the commodity such as golf, umbrella, bike, scooter, billiard stick, working efficiency, quality product all effectively promotes.Specific embodiment described herein is only to the present invention's explanation for example.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (5)
1. a PU skin butt-joint process, for docking the first butt joint edge and the second butt joint edge, is characterized in that: this butt-joint process comprises following steps:
A. carry out coated glue along the joint edge surface of the first butt joint edge and the second butt joint edge respectively;
B. prepare an accessory plate with reference line, the first butt joint edge and the second butt joint edge are sticked on accessory plate along reference line respectively;
C. on the butt seam of the first butt joint edge, the second butt joint edge, cover a PU edge strip, and PU edge strip center line overlaps with reference line;
D. the first butt joint edge of the attached PU of building edge strip, the second butt joint edge and accessory plate entirety are placed in to cycle machine work top, along the surface pressing of PU edge strip, PU edge strip and the first butt joint edge, the second butt joint edge are combined as a whole high temperature pressing plate high-frequency;
E. finally take off accessory plate, and PU edge strip unnecessary joint two ends is cut off.
2. PU skin butt-joint process according to claim 1, is characterized in that: the width of described PU edge strip is preferably 1-1000mm, the PU edge strip of each attached 1-500mm width on the first butt joint edge, the second butt joint edge after adhering to.
3. PU skin butt-joint process according to claim 1, is characterized in that: described PU skin is one for making the monoblock type PU skin of leather sheath, and its length range is at 1-1000mm, and width range is at 1-1000mm.
4. PU skin butt-joint process according to claim 1, it is characterized in that: in described step c, cover PU edge strip on butt seam before, first use the pressing mold identical with PU edge strip shape on butt seam, impress out one with the identical concave surface of PU edge strip shape, the degree of depth that makes concave surface is the 1/10-2/3 of the thickness of PU edge strip, then PU edge strip is covered on butt seam; And then carry out subsequent step.
5. according to the PU skin butt-joint process described in claim 1 or 4, with cladding docking replacement color printing, it is characterized in that: at any place of the first butt joint edge or the second butt joint edge, the concave surface of first using the pressing mold impression one that matches with PU skin shape to be replaced and PU skin shape to be replaced to match, the degree of depth of concave surface is the 1/10-2/3 of PU skin thickness to be replaced, again PU skin to be replaced is placed in to this concave surface, then carries out carrying out hot pressing fusion with cycle machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051227.9A CN103789461A (en) | 2014-02-14 | 2014-02-14 | Butt joint process of polyurethane (PU) leathers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051227.9A CN103789461A (en) | 2014-02-14 | 2014-02-14 | Butt joint process of polyurethane (PU) leathers |
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| Publication Number | Publication Date |
|---|---|
| CN103789461A true CN103789461A (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051227.9A Pending CN103789461A (en) | 2014-02-14 | 2014-02-14 | Butt joint process of polyurethane (PU) leathers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393721A (en) * | 2016-10-13 | 2017-02-15 | 尹滔 | Fixed clamp mould used for plastic hot-melting impressing and seamless connecting process |
| CN106547093A (en) * | 2016-10-17 | 2017-03-29 | 歌尔科技有限公司 | Pad and preparation method thereof is worn after one kind |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424193A (en) * | 2001-12-14 | 2003-06-18 | 旭硝子株式会社 | Film connecting method, wide-range film therefrom and agricultural covering material thereof |
| CN1814811A (en) * | 2006-02-21 | 2006-08-09 | 青岛亨达集团有限公司 | Seamless binding technology for leather product |
| CN2890070Y (en) * | 2006-01-07 | 2007-04-18 | 汪熙隆 | Finished leather made of real leather |
| CN101018661A (en) * | 2004-08-26 | 2007-08-15 | 新田股份有限公司 | Joint processing method for belt, presetter, and joint processing device |
| KR100852395B1 (en) * | 2007-04-10 | 2008-08-14 | 김용구 | Method for attaching a minute fur to a textile and clothes using the same |
-
2014
- 2014-02-14 CN CN201410051227.9A patent/CN103789461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424193A (en) * | 2001-12-14 | 2003-06-18 | 旭硝子株式会社 | Film connecting method, wide-range film therefrom and agricultural covering material thereof |
| CN101018661A (en) * | 2004-08-26 | 2007-08-15 | 新田股份有限公司 | Joint processing method for belt, presetter, and joint processing device |
| CN2890070Y (en) * | 2006-01-07 | 2007-04-18 | 汪熙隆 | Finished leather made of real leather |
| CN1814811A (en) * | 2006-02-21 | 2006-08-09 | 青岛亨达集团有限公司 | Seamless binding technology for leather product |
| KR100852395B1 (en) * | 2007-04-10 | 2008-08-14 | 김용구 | Method for attaching a minute fur to a textile and clothes using the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106393721A (en) * | 2016-10-13 | 2017-02-15 | 尹滔 | Fixed clamp mould used for plastic hot-melting impressing and seamless connecting process |
| CN106547093A (en) * | 2016-10-17 | 2017-03-29 | 歌尔科技有限公司 | Pad and preparation method thereof is worn after one kind |
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Application publication date: 20140514 |