CA2059718C - Using male and female mould to convex pressed the vein of natural flora and leaves on the surface of leather - Google Patents
Using male and female mould to convex pressed the vein of natural flora and leaves on the surface of leatherInfo
- Publication number
- CA2059718C CA2059718C CA 2059718 CA2059718A CA2059718C CA 2059718 C CA2059718 C CA 2059718C CA 2059718 CA2059718 CA 2059718 CA 2059718 A CA2059718 A CA 2059718A CA 2059718 C CA2059718 C CA 2059718C
- Authority
- CA
- Canada
- Prior art keywords
- mould
- leather
- flora
- female
- male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/56—Ornamenting, producing designs, embossing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
This new invention includes convex pressing of natural flora and leaves on the surface of leather;
putting colour into resulting leather and using the coloured leather to manufacture final consumer leather products such as handbags and ladybags.
The materials used in the whole process are briefly described in the following:
(i) Natural Flora & Leaves: Natural leaves and flora are taken from selected plants.
(ii) Leather: chrome or vegetable tanned leathers are used. The leathers used can be cattlehide, sheepskin or pigskin.
(iii) Water-base colouring agent: A colouring agent which is used in the dyeing of the convex pressed leather.
(iv) Mould releasing agent a water-base wax that is used to hold the position of the flattened natural flora and leaves on a piece of cardboard.
(v) Mould hardening agent: the chemical used in the making of the male and female mould is called epoxy resin.
(vi) Hydraulic Pressing Machine: supported on the ground by two steel poles on each side of the machine, this machine consists of a lower and an upper metal boards which are used to hold the mould and to convex press the leather. The two metal boards are positioned in the center of the machine by fastening them into two steel bars which are fixed onto the steel poles on each side of the machine.
putting colour into resulting leather and using the coloured leather to manufacture final consumer leather products such as handbags and ladybags.
The materials used in the whole process are briefly described in the following:
(i) Natural Flora & Leaves: Natural leaves and flora are taken from selected plants.
(ii) Leather: chrome or vegetable tanned leathers are used. The leathers used can be cattlehide, sheepskin or pigskin.
(iii) Water-base colouring agent: A colouring agent which is used in the dyeing of the convex pressed leather.
(iv) Mould releasing agent a water-base wax that is used to hold the position of the flattened natural flora and leaves on a piece of cardboard.
(v) Mould hardening agent: the chemical used in the making of the male and female mould is called epoxy resin.
(vi) Hydraulic Pressing Machine: supported on the ground by two steel poles on each side of the machine, this machine consists of a lower and an upper metal boards which are used to hold the mould and to convex press the leather. The two metal boards are positioned in the center of the machine by fastening them into two steel bars which are fixed onto the steel poles on each side of the machine.
Description
2. Design Description 2.1 The Production of A Female and A Male Mould (1 ) Natural flora branches and leaves are taken from selected plants. They are then flattened by applying high pressure on them.
(2) The flattened branches are placed on the surface of a thick piece of 2ft by 2 ft cardboard.
Then a water base wax agent is sprayed evenly over the flattened branches on the whole cardboard.
(2) The flattened branches are placed on the surface of a thick piece of 2ft by 2 ft cardboard.
Then a water base wax agent is sprayed evenly over the flattened branches on the whole cardboard.
(3) A wooden frame is constructed and the cardboard is then inserted into the frame with the surface holding the leaves facing upward. A mould hardening agent, the epoxy resin is then poured into the wooden frame. The (bottom) surface is made extremely smooth and the hardening chemical is let dry. When the epoxy resin is dry, a female mould is created.
(4) The wooden frame with the cardboard inserted in it is then inverted. The cardboard is peel off, the branches are taken away from the female mould, leavmg a convex pattern of the branches in it.
B . *
The wooden box is still holding the female mould.
B . *
The wooden box is still holding the female mould.
(5) Another wooden frame of the same dimension is constructed and put on top of the original wooden frame on the convex side of the female mould. The same mould releasing agent, a water base wax, is again sprayed over the convex side of the female mould.
(6) The mould hardening agent is again poured and fills the new frame. The surface is then made to extremely smooth. The epoxy resin is let dry. And a male mould is made.
(7) Both the upper and lower wooden frames are removed. The female and the male mould is separated with extreme care 2.2 Convex ~rcs ,i~lg of Leather (1) Once the female and the male mould are made, they are placed on the metal pressing board in the hydraulic pressing machine. The two metal boards are positioned in the hydraulic pressing machine by f~tçning them onto two steel bars.
(2) The female mould is placed on the lower metal board with the concave side (top) facing upward. The male mould is fastened into the upper metal board with the convex side (top) facing downward. In another words, the female mould is placed such that the concave side faces the convex side of the male mould.
(3) A water-base dyeing agent is poured into the female mould. Then leather is placed on the female mould with the top surface facing downward.
Then the leather is pressed. The machine can exert 200 pounds of pressure per squared inch.
However, the amount of pressure required to convex press the leather depends on several factors:
first, the thickness of the leather; second, the water content inside the leather; and third, whether the leather is pre-heated before pressing.
B
(2) The female mould is placed on the lower metal board with the concave side (top) facing upward. The male mould is fastened into the upper metal board with the convex side (top) facing downward. In another words, the female mould is placed such that the concave side faces the convex side of the male mould.
(3) A water-base dyeing agent is poured into the female mould. Then leather is placed on the female mould with the top surface facing downward.
Then the leather is pressed. The machine can exert 200 pounds of pressure per squared inch.
However, the amount of pressure required to convex press the leather depends on several factors:
first, the thickness of the leather; second, the water content inside the leather; and third, whether the leather is pre-heated before pressing.
B
Claims (9)
1. A method of embossing natural flora onto leather comprising the steps of:
making matching male and female moulds which each bear an image of the natural flora;
compressing leather between said male and female moulds at very high pressure thereby embossing the leather with an image of the flora, wherein the step of making the male and female moulds comprises:
flattening natural flora and placing it on the flat surface of a sheet of cardboard or similar material;
applying mould releasing agent evenly over the flora and flat surface of the sheet;
placing a first frame around the edges of the sheet;
pouring a mould hardening agent into the frame and over the flora and flat surface;
smoothing the surface of the hardening agent and allowing the agent to dry to form a first mould;
inverting the frame along with the cardboard sheet, flora and first mould;
removing the cardboard sheet and natural flora from the surface of the first mould to expose a concave pattern of the flora in a surface of the mould;
placing a second frame on top of the first frame coextensive therewith;
applying mould releasing agent evenly over the exposed surface of the first mould and the concave pattern of the flora;
pouring a mould hardening agent into the second frame and onto the surface of the first mould having the concave pattern of the flora;
smoothing the surface of the hardening agent and allowing the agent to dry to form a second mould;
removing the first and second frames;
separating the second mould from the first mould, exposing a surface of the second mould having a convex pattern of the flora, the first and second moulds becoming the female and male moulds respectively;
whereby the concave and convex patterns of the flora are transferred to the leather under high pressure to form an embossed image of the flora on the leather.
making matching male and female moulds which each bear an image of the natural flora;
compressing leather between said male and female moulds at very high pressure thereby embossing the leather with an image of the flora, wherein the step of making the male and female moulds comprises:
flattening natural flora and placing it on the flat surface of a sheet of cardboard or similar material;
applying mould releasing agent evenly over the flora and flat surface of the sheet;
placing a first frame around the edges of the sheet;
pouring a mould hardening agent into the frame and over the flora and flat surface;
smoothing the surface of the hardening agent and allowing the agent to dry to form a first mould;
inverting the frame along with the cardboard sheet, flora and first mould;
removing the cardboard sheet and natural flora from the surface of the first mould to expose a concave pattern of the flora in a surface of the mould;
placing a second frame on top of the first frame coextensive therewith;
applying mould releasing agent evenly over the exposed surface of the first mould and the concave pattern of the flora;
pouring a mould hardening agent into the second frame and onto the surface of the first mould having the concave pattern of the flora;
smoothing the surface of the hardening agent and allowing the agent to dry to form a second mould;
removing the first and second frames;
separating the second mould from the first mould, exposing a surface of the second mould having a convex pattern of the flora, the first and second moulds becoming the female and male moulds respectively;
whereby the concave and convex patterns of the flora are transferred to the leather under high pressure to form an embossed image of the flora on the leather.
2. The method of claim 1 wherein the step of applying mould releasing agent is spraying.
3. The method of claim 1 wherein the mould releasing agent is a water-based wax.
4. The method of claim 1 wherein the mould hardening agent is an epoxyresin.
5. The method of claim 1 wherein a hydraulic press is used to compress the leather between the moulds.
6. The method of claim 1 wherein the compressing step includes the following operation:
placing the female mould with the concave pattern facing upward;
placing the leather to be embossed face side down onto the upward facing surfaceof the female mould;
placing the male mould with the convex pattern facing downward onto the leather and in orientation with convex pattern of the female mould;
applying pressure to the male and female moulds sufficient to emboss the leather.
placing the female mould with the concave pattern facing upward;
placing the leather to be embossed face side down onto the upward facing surfaceof the female mould;
placing the male mould with the convex pattern facing downward onto the leather and in orientation with convex pattern of the female mould;
applying pressure to the male and female moulds sufficient to emboss the leather.
7. The method of claim 6 wherein the leather is embossed with a colored raised image of the flora further including the step of:
pouring a dyeing agent onto the upward facing surface of concave only of the female mould prior to the step of placing the leather to be embossed face side down onto the upward facing surface of the female mould
pouring a dyeing agent onto the upward facing surface of concave only of the female mould prior to the step of placing the leather to be embossed face side down onto the upward facing surface of the female mould
8. The method of claim 6 wherein the leather is first heated prior to embossing.
9. An embossed leather has a raised image of natural flora when made by the method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2059718 CA2059718C (en) | 1992-01-20 | 1992-01-20 | Using male and female mould to convex pressed the vein of natural flora and leaves on the surface of leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2059718 CA2059718C (en) | 1992-01-20 | 1992-01-20 | Using male and female mould to convex pressed the vein of natural flora and leaves on the surface of leather |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2059718A1 CA2059718A1 (en) | 1993-07-21 |
| CA2059718C true CA2059718C (en) | 1996-11-12 |
Family
ID=4149119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2059718 Expired - Fee Related CA2059718C (en) | 1992-01-20 | 1992-01-20 | Using male and female mould to convex pressed the vein of natural flora and leaves on the surface of leather |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2059718C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007041864A1 (en) * | 2005-10-12 | 2007-04-19 | Edger Chris T | Embossing of flexible sheet material |
| CN109781725A (en) * | 2017-11-13 | 2019-05-21 | 李尔公司 | Mould the checking tool and method of loose side |
-
1992
- 1992-01-20 CA CA 2059718 patent/CA2059718C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007041864A1 (en) * | 2005-10-12 | 2007-04-19 | Edger Chris T | Embossing of flexible sheet material |
| CN109781725A (en) * | 2017-11-13 | 2019-05-21 | 李尔公司 | Mould the checking tool and method of loose side |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2059718A1 (en) | 1993-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |