CN106671214A - A new type of environmentally friendly leather skin processing technology - Google Patents

Abstract

The invention discloses a novel environmentally friendly veneer processing technology, which comprises the following steps: 1) cutting a log into sections, and then sawing and slicing to obtain a veneer with a thickness of 6 mm, and steaming the veneer to obtain a veneer raw material that can be used for processing a veneer veneer; 2) selecting the veneer raw material obtained in step 1), applying glue to the selected veneer material, and splicing the veneer material through a veneer splicer to obtain a veneer material that meets the width size; 3) hot pressing the veneer material obtained in step 2) twice to obtain a veneer veneer; step 4) testing the veneer veneer obtained by hot pressing in step 3) to obtain a qualified veneer veneer; through the above processing technology, a veneer veneer with a smooth veneer surface, no bubbles and no glue penetration can be obtained.

Description

A new type of environmentally friendly leather skin processing technology

technical field

The invention relates to a novel environmental-friendly skin-adhesive processing technology.

Background technique

At present, with the continuous improvement of people's living standards, people's liking and demand for wood products are increasing. However, with the decreasing resources of global high-grade timber, especially since the implementation of the natural protection forest project, The contradiction between supply and demand of wood is becoming more and more acute, and it is difficult to meet the growing demand by relying on natural wood. At the same time, although my country is currently vigorously developing plantation forests and fast-growing forest tree species, the soft wood produced by plantation forests and fast-growing forests has problems of low decorative value and low physical and mechanical properties, especially the defects of low wear resistance and surface hardness of wood. Make the field of use of soft wood subject to huge restriction.

But in the processing process of existing veneer veneer, most manufacturers just simply carry out simple cloth glue, splicing and extruding to veneer raw material, ignore the nail hole and defect on the veneer to fill up processing. Traditional polyurethane coatings and PU solvent-based paints are mainly used for the processing of traditional veneer-clad paints, which require at least three consecutive sprayings, polishing, and a production cycle of several days. A large number of labor requirements and site occupation make the furniture industry Profits have dropped sharply, costs have continued to increase, and there are still large VOCs, which have adverse effects on the environment.

To sum up, the existing veneer has the problems of uneven veneer, foaming and glue penetration in the finished product through crude processing steps, which is not conducive to being used for decoration.

Contents of the invention

In view of this, the purpose of the present invention is to provide a new type of environmentally friendly veneering process with smooth veneer, no foaming and no glue penetration.

In order to solve the problems of the technologies described above, the technical solution of the present invention is:

A new type of environmentally friendly leather skin processing technology, characterized in that: comprising the following steps:

1) The production of veneer, its concrete steps are: A, select the log without crack to cut by electric saw, make log be divided into sections, then saw and cut by electric saw again, make the thin veneer that thickness is 6mm, standby; B. Put the veneer prepared in specific step A into the cooking tank, and gradually raise the water temperature in the cooking tank to 40°C under normal temperature, and the heating duration is 1-3 hours, and then raise the temperature from 40°C to 50°C , the heating duration is 2-6 hours, and after cooking, the water in the cooking pool is replaced, and the temperature is slowly raised again, and this is repeated three times, so that the veneer can improve the toughness and plasticity, and then the veneer after cooking is placed in a water temperature of In the warm water tank of 50 ℃, set aside; C, dry the thin veneer after the cooking of step B through a belt dryer, and the moisture content of the prepared veneer is 8-12%, that is, get the veneer, set aside;

2) The selection and processing technology of veneer veneer materials, the specific steps are: A. Select a thin veneer with no cracks and uniform thickness to pave, and then fill the nail holes and defects on the surface of the veneer with dust, and then use the pressure plate to fill the veneer. The position of the ash is flattened so that the veneer is flat and ready for use; B. After mixing and diluting the thin veneer in a ratio of 2:1 with environmentally friendly glue, the veneer prepared in the specific step A is uniformly glued, and then left to stand 1-3 hours, make the glue solidify, standby; C, choose the thin veneer that the glue surface that concrete step B makes is flat, and thickness and length are consistent, and then through thin veneer splicing machine will pick out two small veneers of size Splicing, making veneer that meets the width requirements, for use;

3) Hot press processing of veneer: A. Sprinkle water evenly on the surface of veneer after splicing in step 2) to make the surface of veneer moist, and then carry out hot pressing treatment by hot pressing machine for standby; B. First hot pressing treatment: Adjust the pressure of the hot press to 10-20kg/cm ² , and the hot-pressing temperature to 100-130°C, and continue hot-pressing the veneer for 30-50 minutes to obtain the first-time hot-pressed veneer for later use; C, the second hot-pressing Treatment: adjust the pressure of the hot press to 8-16kg/cm ² , the hot-pressing temperature to 80-100°C, and continue hot-pressing the veneer for 20-40 minutes to obtain the hot-pressed veneer for use;

4) Wood veneer quality inspection: Inspect the veneer after hot pressing in step 3), and obtain a veneer with a smooth surface, no air bubbles and glue penetration.

The technical effect of the present invention is mainly reflected in the following aspects: by cutting the log into sections, and sawing the log section to obtain a thin veneer with a thickness of 6 mm, and then steaming the veneer, a veneer that can be used for processing veneer stickers is obtained. The thin veneer raw materials on the surface, and then select the veneer raw materials obtained, and evenly distribute the glue on the selected veneer materials, and splicing through the thin veneer splicing device to obtain veneer materials that meet the width size; finally, the obtained veneer materials The thin veneer material is hot-pressed twice to obtain a veneer veneer, and the veneer veneer obtained by hot pressing is tested to obtain a qualified veneer veneer. Through the above-mentioned processing technology, the veneer can be flat, non-foaming and impermeable Glue veneer.

detailed description

Example 1

A new type of environmentally friendly pasting skin processing technology, comprising the following steps:

1) The production of veneer, its concrete steps are: A, select the log without crack to cut by electric saw, make log be divided into sections, then saw and cut by electric saw again, make the thin veneer that thickness is 6mm, standby; B. Put the thin veneer prepared in the specific step A into the cooking tank, and gradually raise the water temperature in the cooking tank to 40°C under normal temperature, and the heating duration is 1 hour, and then heat up from 40°C to 50°C, and then heat up The duration is 2 hours, and the water in the cooking tank is replaced after cooking, and the temperature is slowly raised again, and this is repeated three times, so that the toughness and plasticity of the thin veneer are improved, and then the cooked veneer is placed in warm water with a water temperature of 50°C In the tank, it is for subsequent use; C, the veneer after the cooking of step B is dried by a belt dryer, and the moisture content of the veneer is 8%, which is to obtain the veneer, for subsequent use;

2) The selection and processing technology of veneer veneer materials, the specific steps are: A. Select a thin veneer with no cracks and uniform thickness to pave, and then fill the nail holes and defects on the surface of the veneer with dust, and then use the pressure plate to fill the veneer. The position of the ash is flattened so that the veneer is flat and ready for use; B. After mixing and diluting the thin veneer in a ratio of 2:1 with environmentally friendly glue, the veneer prepared in the specific step A is uniformly glued, and then left to stand 1-3 hours, make the glue solidify, standby; C, choose the thin veneer that the glue surface that concrete step B makes is flat, and thickness and length are consistent, and then through thin veneer splicing machine will pick out two small veneers of size Splicing, making veneer that meets the width requirements, for use;

3) Hot press processing of veneer: A. Sprinkle water evenly on the surface of veneer after splicing in step 2) to make the surface of veneer moist, and then carry out hot pressing treatment by hot pressing machine for standby; B. First hot pressing treatment: Adjust the pressure of the hot press to 10kg/cm ² , the hot pressing temperature to 100°C, and continue hot pressing the veneer for 30 minutes to obtain the first hot pressed veneer for use; C. The second hot pressing treatment: adjust the hot press The pressure is 8kg/cm ² , the hot-pressing temperature is 80°C, and the veneer is continuously hot-pressed for 20 minutes to obtain the hot-pressed veneer, which is ready for use;

4) Wood veneer quality inspection: Inspect the veneer after hot pressing in step 3), and obtain a veneer with a smooth surface, no air bubbles and glue penetration.

In this embodiment, the sawing method adopted in the specific step A in the step 1) is one of the cross-cutting: swirl pattern, longitudinal cutting: straight pattern and oblique cutting: mountain pattern.

In this embodiment, the ash filling material in the specific step B in step 2) is one of double ash powder and atomic ash, and the color of the ash filling material is consistent with the color of the veneer.

Example 2

A new type of environmentally friendly pasting skin processing technology, comprising the following steps:

1) The production of veneer, its concrete steps are: A, select the log without crack to cut by electric saw, make log be divided into sections, then saw and cut by electric saw again, make the thin veneer that thickness is 6mm, standby; B. Put the thin veneer prepared in specific step A into the cooking pool, and gradually heat up the water temperature in the cooking pool to 40°C under normal temperature. The duration of the heating is 2 hours, and then from 40°C to 50°C. The duration is 4 hours, and the water in the cooking tank is replaced after cooking, and the temperature is slowly raised again, and this is repeated three times, so that the toughness and plasticity of the thin veneer are improved, and then the cooked veneer is placed in warm water with a water temperature of 50°C In the tank, it is for subsequent use; C, the veneer after the cooking of step B is dried by a belt dryer, and the moisture content of the veneer is 8-12%, which is to obtain the veneer, for subsequent use;

2) The selection and processing technology of veneer veneer materials, the specific steps are: A. Select a thin veneer with no cracks and uniform thickness to pave, and then fill the nail holes and defects on the surface of the veneer with dust, and then use the pressure plate to fill the veneer. The position of the ash is flattened so that the veneer is flat and ready for use; B. After mixing and diluting the thin veneer in a ratio of 2:1 with environmentally friendly glue, the veneer prepared in the specific step A is uniformly glued, and then left to stand 2 hours, make the glue solidify, standby; C, choose the thin veneer that the glue surface that specific step B makes is smooth, and thickness and length are consistent, then splicing the two small veneers that are selected by the thin veneer splicing machine, Make the veneer that meets the width requirement, spare;

3) Hot press processing of veneer: A. Sprinkle water evenly on the surface of veneer after splicing in step 2) to make the surface of veneer moist, and then carry out hot pressing treatment by hot pressing machine for standby; B. First hot pressing treatment: Adjust the pressure of the hot press to 15kg/cm ² , the hot pressing temperature to 115°C, and continue hot pressing the veneer for 40 minutes to obtain the first hot pressed veneer for use; C. The second hot pressing treatment: adjust the hot press The pressure is 12kg/cm ² , the hot-pressing temperature is 90°C, and the veneer is continuously hot-pressed for 30 minutes to obtain the hot-pressed veneer, which is ready for use;

4) Wood veneer quality inspection: Inspect the veneer after hot pressing in step 3), and obtain a veneer with a smooth surface, no air bubbles and glue penetration.

In this embodiment, the sawing method adopted in the specific step A in the step 1) is one of the cross-cutting: swirl pattern, longitudinal cutting: straight pattern and oblique cutting: mountain pattern.

In this embodiment, the ash filling material in the specific step B in step 2) is one of double ash powder and atomic ash, and the color of the ash filling material is consistent with the color of the veneer.

Example 3

A new type of environmentally friendly pasting skin processing technology, comprising the following steps:

1) The production of veneer, its concrete steps are: A, select the log without crack to cut by electric saw, make log be divided into sections, then saw and cut by electric saw again, make the thin veneer that thickness is 6mm, standby; B. Put the thin veneer prepared in the specific step A into the cooking tank, and gradually increase the water temperature in the cooking tank to 40°C under normal temperature, and the heating duration is 3 hours, and then from 40°C to 50°C, and then heat up The duration is 6 hours, and the water in the cooking tank is replaced after cooking, and the temperature is slowly raised again, and this is repeated three times, so that the toughness and plasticity of the thin veneer are improved, and then the cooked veneer is placed in warm water with a water temperature of 50°C In the tank, it is for subsequent use; C, the veneer after the cooking of step B is dried by a belt dryer, and the moisture content of the veneer is 12%, which is to obtain the veneer, for subsequent use;

2) The selection and processing technology of veneer veneer materials, the specific steps are: A. Select a thin veneer with no cracks and uniform thickness to pave, and then fill the nail holes and defects on the surface of the veneer with dust, and then use the pressure plate to fill the veneer. The position of the ash is flattened so that the veneer is flat and ready for use; B. After mixing and diluting the thin veneer in a ratio of 2:1 with environmentally friendly glue, the veneer prepared in the specific step A is uniformly glued, and then left to stand 3 hours, make the glue solidify, standby; C, choose the thin veneer that the glue surface that concrete step B makes is smooth, and thickness and length are consistent, then splicing the two small veneers that are picked out by thin veneer splicing machine, Make the veneer that meets the width requirement, spare;

3) Hot press processing of veneer: A. Sprinkle water evenly on the surface of veneer after splicing in step 2) to make the surface of veneer moist, and then carry out hot pressing treatment by hot pressing machine for standby; B. First hot pressing treatment: Adjust the pressure of the hot press to 20kg/cm ² , the hot pressing temperature to 130°C, and continue hot pressing the veneer for 50 minutes to obtain the first hot pressed veneer for use; C. The second hot pressing treatment: adjust the hot press The pressure is 16kg/cm ² , the hot-pressing temperature is 100°C, and the veneer is continuously hot-pressed for 40 minutes to obtain the hot-pressed veneer, which is ready for use;

4) Wood veneer quality inspection: Inspect the veneer after hot pressing in step 3), and obtain a veneer with a smooth surface, no air bubbles and glue penetration.

In this embodiment, the sawing method adopted in the specific step A in the step 1) is one of the cross-cutting: swirl pattern, longitudinal cutting: straight pattern and oblique cutting: mountain pattern.

In this embodiment, the ash filling material in the specific step B in step 2) is one of double ash powder and atomic ash, and the color of the ash filling material is consistent with the color of the veneer.

Experimental example

Experimental object: the veneer veneer that adopts common processing technology to make is compared with the veneer veneer that the processing technology of the present invention makes, the veneer veneer that common processing technology makes is the control group, the veneer veneer that the processing technology of the present invention makes The veneer is the experimental group.

Experimental requirements: The thickness of the veneer veneers of the two groups is the same, and the comparison is made according to the appearance, touch and sizing effect of the products.

The specific comparison is shown in the table below

In combination with the above table, comparing the veneer veneer made by the common processing technology with the veneer veneer made by the processing technology of the present invention, the appearance, touch and sizing effect of the veneer veneer of the present invention are all better than the control group. Compared with the veneer veneer produced by ordinary processing technology, the veneer veneer produced by the processing technology of the present invention can highlight the advantages of smooth veneer, no foaming and no glue penetration.

The technical effect of the present invention is mainly reflected in the following aspects: by cutting the log into sections, and sawing the log section to obtain a thin veneer with a thickness of 6 mm, and then steaming the veneer, a veneer that can be used for processing veneer stickers is obtained. The thin veneer raw materials on the surface, and then select the veneer raw materials obtained, and evenly distribute the glue on the selected veneer materials, and splicing through the thin veneer splicing device to obtain veneer materials that meet the width size; finally, the obtained veneer materials The thin veneer material is hot-pressed twice to obtain a veneer veneer, and the veneer veneer obtained by hot pressing is tested to obtain a qualified veneer veneer. Through the above-mentioned processing technology, the veneer can be flat, non-foaming and impermeable Glue veneer.

Of course, the above are only typical examples of the present invention. In addition, the present invention can also have other multiple specific implementation modes. All technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of protection claimed by the present invention. Inside.

Claims (1)

1. a kind of novel environment friendly lagging processing technology, it is characterised in that：Comprise the following steps：

1）The making of wood skin, it is concretely comprised the following steps：A, cut by electric saw from crackless log so that log is split Into section, saw is then carried out by electric saw again and is cutd open, it is the veneer of 6mm that thickness is obtained, standby；B, will be thin obtained in specific steps A Wood skin is put into boiling pond, and the water temperature in boiling pond is had under normal temperature state is gradually heating to 40 DEG C, and the duration of heating up is 1-3 hours, 50 DEG C are then warming up to from 40 DEG C again, the duration of heating up is 2-6 hours, and after cooking by the water in boiling pond It is replaced, is slowly heated up again, so in triplicate so that veneer improves toughness and plasticity, then will steams Veneer after boiling is placed into the warm water tank that water temperature is 50 DEG C, standby；C, by the veneer after step B boilings pass through belt type dry Dry machine is dried, and obtained veneer moisture content is 8-12%, obtains final product wood skin, standby；

2）The selection of wood tegument veener material and processing technology, it is concretely comprised the following steps：A, from veneer flawless and in uniform thickness Skin is paved, and then the hole for nailing and defect on veneer surface carry out mending ash, then are flattened using the position that pressing plate will mend ash so that thin Wood skin is smooth, standby；B, using Environment-friendlyglue glue by Tianna solution dilution after, veneer obtained in specific steps A is carried out uniformly Cloth glue, then stands 1-3 hours so that the glue solidifies, standby；C, to select glue surface obtained in specific steps B smooth, and thickness and The consistent veneer of length, then by thin skin splice machine will be singled out come the small veneer of two chip sizes spliced, The wood skin for meeting width requirement is obtained, it is standby；

3）Veneer hot pressing is processed：A, to step 2）Spliced veneer surface uniform sprinkling so that veneer surface wettability, Then hot-pressing processing is carried out by hot press, it is standby；B, first time hot-pressing processing：The pressure for adjusting hot press is 10-20kg/ cm², hot pressing temperature is 100-130 DEG C, and hot pressing 30-50min is continued to veneer, obtains the veneer of first hot pressing, standby；C、 Second hot-pressing processing：The pressure for adjusting hot press is 8-16kg/cm², hot pressing temperature is 80-100 DEG C, and heat is continued to veneer Pressure 20-40min, obtains the veneer of hot pressing completion, standby；

4）Wood skin Quality Detection：To step 3）Wood skin after hot pressing detected, obtains the wood of surfacing, bubble-free and seep through Skin, obtains final product.