阅读说明：本技术 工艺品木材软化处理工艺 (Craftwork timber sofening treatment technique ) 是由 王兆丰 于 2018-05-21 设计创作，主要内容包括：本发明公开了一种工艺品木材软化处理工艺,涉及木材处理领域,包括：(1)碱液浸泡；(2)一氧化氮间歇熏蒸；(3)薄膜包覆处理；本发明公开了一种工艺品木材软化处理工艺,通过对工艺品木材的软化处理,不仅能够有效的提高对工艺品木材的软化效果,同时,制成工艺品后的木材强度恢复率显著提高。(The invention discloses a kind of craftwork timber sofening treatment techniques, are related to treating of wood field, comprising: (1) dipping by lye；(2) nitric oxide intermittent fumigation；(3) film coated is handled；The invention discloses a kind of craftwork timber sofening treatment techniques can not only effectively improve the bating effect to craftwork timber by the sofening treatment to craftwork timber, meanwhile, the strength of wood recovery rate after preparing handicraft article significantly improves.)

1. a kind of craftwork timber sofening treatment technique, which comprises the following steps:

(1) dipping by lye: craftwork timber is handled into 30-40min using dipping by lye, is then taken out, surface is dried；

(2) nitric oxide intermittent fumigation: carrying out suffocating treatment using fumigating gas for step (1) treated craftwork timber, Nitric oxide concentration is successively used to smoke for the fumigating gas of 80 μ L/L, 150 μ L/L, 300 μ L/L to craftwork timber respectively Steaming processing, each suffocating treatment time interval are 30-40min, and each suffocating treatment time is 1 hour, are then taken out；It is described smoked Contain 13-15mL alcohol gas in every liter of vapor volume；

(3) film coated is handled: by step (2) treated craftwork timber using Plastic film surface cladding closing, then It is placed at 80-90 DEG C 2-3 hours, then cooled to room temperature, contact PE film coat.

2. a kind of craftwork timber sofening treatment technique as described in claim 1, which is characterized in that alkali in the step (1) Liquid mass fraction is the sodium carbonate liquor of 10-15%, and the dipping by lye temperature is 60-70 DEG C.

3. a kind of craftwork timber sofening treatment technique as described in claim 1, which is characterized in that smoked in the step (2) Nitric oxide, alcohol gas are removed in vapor volume, remaining is carbon dioxide.

4. a kind of craftwork timber sofening treatment technique as described in claim 1, which is characterized in that smoked in the step (2) The temperature of vapor volume is 115-120 DEG C.

5. a kind of craftwork timber sofening treatment technique as described in claim 1, which is characterized in that smoked in the step (2) Moisture content is lower than 3.0-3.5% in vapor volume.

6. a kind of craftwork timber sofening treatment technique as described in claim 1, which is characterized in that modeling in the step (3) Material film is PE film.

Technical field

The invention belongs to treating of wood fields, and in particular to a kind of craftwork timber sofening treatment technique.

Background technique

In the process of Wood craft, softening is carried out to the timber as raw material and is very important step.In Under usual conditions, timber is a kind of material for lacking plasticity, by that it can be made to show temporarily to timber progress sofening treatment Plasticity, timber can be bent, be compressed at this time, the plastic processings such as embossment, it is then dry under deformation, restore it Original stiffness and strength realize the permanent plastic deformation of timber, keep the craftwork intensity of production high, and morphological appearance is decorative It can be good.Common softening method has boiling, high-temperature high-pressure steam processing and Chemical treatment.It is handled by these methods Wood dimensional stability is poor, and processing performance and service performance also will receive adverse effect.

Summary of the invention

The purpose of the present invention is being directed to existing problem, a kind of craftwork timber sofening treatment technique is provided.

The present invention is achieved by the following technical solutions: a kind of craftwork timber sofening treatment technique, including following step It is rapid: (1) that dipping by lye: craftwork timber being handled into 30-40min using dipping by lye, is then taken out, surface is dried；

(2) nitric oxide intermittent fumigation: carrying out suffocating treatment using fumigating gas for step (1) treated craftwork timber, Nitric oxide concentration is successively used to smoke for the fumigating gas of 80 μ L/L, 150 μ L/L, 300 μ L/L to craftwork timber respectively Steaming processing, each suffocating treatment time interval are 30-40min, and each suffocating treatment time is 1 hour, are then taken out；It is described smoked Contain 13-15mL alcohol gas in every liter of vapor volume；

(3) film coated is handled: by step (2) treated craftwork timber using Plastic film surface cladding closing, then It is placed at 80-90 DEG C 2-3 hours, then cooled to room temperature, contact PE film coat.

Further, the sodium carbonate liquor that lye mass fraction is 10-15% in the step (1), the dipping by lye temperature Degree is 60-70 DEG C.

Further, nitric oxide, alcohol gas are removed in the step (2) in fumigating gas, remaining is carbon dioxide.

Further, the temperature of fumigating gas is 115-120 DEG C in the step (2).

Further, moisture content is lower than 3.0-3.5% in fumigating gas in the step (2).

Further, plastic film is PE film in the step (3).

Further, the PE film thickness is 0.15-0.2mm.

Further, the PE film oxygen gas permeability rate is 2500cm-3m-2d-1, and carbon dioxide air penetrability is 220 Cm -3 m-2d-1, nitric oxide air penetrability are 80 cm-3m-2d-1, and alcohol gas air penetrability is 150 cm-3 m-2·d-1。

The present invention has the advantage that the present invention presoaks craftwork timber by using lye compared with prior art Bubble processing, can effectively improve the fiber softening effect of craftwork timber, smoked in the nitric oxide by using various concentration Vapor volume carries out intermittent fumigation processing, craftwork wood cell wall lignin, half fiber to the craftwork timber after dipping by lye The glass transition temperature of dimension element can be significantly reduced, and the processing of a certain amount of alcohol gas is contained especially in fumigating gas Effect increase the space of free volume in craftwork wood cell wall, while the certain temperature of fumigating gas improves point The energy of sub- warm-up movement, the hydroxyl on cellulose unformed area strand, part form hydrogen bond, are partially located in free state , moisture is easily absorbed, and with the increase of moisture, the further swollen of fiber, the free more moisture of hydroxyl absorption, collaboration Nitric oxide production to act on the reduction for causing fibrous inside binding force, hemicellulose belongs to unformed substance, contains a large amount of hydrogen bond , moisture is easily absorbed, under the action of fumigating gas, hemicellulose is easily degraded, strength reduction, one-dimensional bending curvature half Diameter is significantly reduced, and the bating effect of craftwork timber is significantly improved, in addition in the cladding by plastic film Under processing, cellulose and the intermolecular hydrogen bond of hemicellulose chain can be destroyed, while destroying lignin and carbohydrate Between connecting key, and make lignin itself and generate the effect of thermal softening, conducive to the loose of the netted structure of plant fiber, from And increasing the space of free volume in craftwork wood cell wall, softening performance improves, also, passes through each step of the invention Processing synergistic effect, can effectively raising processing after craftwork timber intensity recovery rate, ensured manufactured craftwork Performance.