CN1051949A

CN1051949A - Wax painting method of leather

Info

Publication number: CN1051949A
Application number: CN 90103042
Authority: CN
Inventors: 惠彬
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-20
Filing date: 1990-06-20
Publication date: 1991-06-05

Abstract

The leather wax dyeing method, it is a kind of method about leather coloring, its major technique feature is to treat that the crust leather control water of batik is to immersing between the water content 30-65% in the wax liquid that dissolves, the rapid taking-up is cooled to normal temperature after making the crust leather surface attach wax liquid, put into staining trough, crust leather is bent, make its surface the be full of cracks lines occur, treat that dye liquor is penetrated into crust leather when surface from moire, take out rapidly, after hanging the dye liquor that dries in the air to the moire slit and being absorbed by crust leather, the rotary drum of packing into falls soft, the wax pull-up of crust leather surface attachment is fallen, and the unclean crust leather that comes off can dewax with organic solvent.Advantage of the present invention is to dye the moire with artistic effect on leather, can be used for the various leather colorings that need dyeing.

Description

Wax painting method of leather

The invention relates to a kind of method of leather coloring

Leather coloring is an important procedure in the tanning production, and general tanned leather all needs dyeing.Make leather present various chromatic colours.Improve outward appearance, improve serviceability, with the requirement of satisfying the people and the needs that adapt to various uses.Because the limitation of existing leather dyeing method can only dye same tone behind the leather coloring.Promptly exist the defective that on same Zhang Ge, can only dye same tone; When manufacturing multicoloured leather goods, the leather of different colours can only be spliced and realize.And form dullness.The renovation of leather goods designs and varieties and the process that develops to fashion have been influenced.Common colouring method has drum to dye, brush and dye and spray-painting; Also has pad dyeing method (realizing) in addition with the leather multiple purpose aeroplane.The heavy curtain that carries out with curtain coater is coated with and dyes.

The objective of the invention is to change leather coloring can only dye single tone on same Zhang Ge defective, on same Zhang Ge, embody contrast effect after making leather coloring.And can produce moire with artistic effect.Thereby produce multicolour, flexible naturally, attractive in appearance various colour leather, the designs and varieties that increase leather, the expansion leather scope of application, the class of raising leather.With the requirement of satisfying people and the needs that are fit for various uses.

Specifically introduce content of the present invention below in conjunction with embodiment:

The preparation of crust leather before the batik is dyed required primary colours (or do not dye, be primary colours with the crust leather primary colors) with crust leather to be dyeed by the normal dyeing method, adjust between pH value to 3.5～7, control water to water content between 30～65%, can carry out batik.

Batik divides three steps, the first step: the waxing of crust leather, wax can be selected the molten some hard waxes between 50 ℃～90 ℃, as paraffin, beeswax, Chinese wax, montanin wax etc., wax is put into a thermostat (wax-dip tank) that has heating system, the consumption of wax is wanted suitably, crust leather is waxed inhomogeneous easily very little, and need often add wax, processing ease was excessive when wax was too many causes waste, the size of thermostat is as the criterion with easy to operate, the temperature of thermostat is controlled between 60 ℃～90 ℃, after treating the wax off-bottom, the crust leather for the treatment of batik is immersed in the wax-dip tank, after whole leather surface is stained with wax, take out rapidly, hang cool, being cooled to normal temperature dyes, batik effect quality, it is crucial waxing, requirement is waxed more even, arrive on whole, the dyeing of second step: dyeing realizes in staining trough (batik groove), the size of batik groove, be as the criterion with easy to operate, dye liquor temperature is a normal temperature, dye liquor concentration, decide according to the deep or light of required batik color, crust leather bending that first-class wax is to be dyeed after dye liquor prepared, wax layer on the crust leather promptly forms the be full of cracks lines, when being folded into required moire density, crust leather is put into the batik groove, shake crust leather gently, dye liquor is immersed in the be full of cracks slit, to remove from office base then rapidly and take out the batik groove, hang cool, the crust leather of first-class wax can not bent yet, directly put into the batik groove, with the crust leather bending, the wax layer that crust leather is adhered to produces the be full of cracks lines in dye liquor, and bending simultaneously, dye liquor immerses in the crackle slit, be seeped into leather surface, treat to remove from office rapidly when whole leather bends out required moire density base and take out dye liquor tank, hang cool, hanging cold to the residual dye liquor in wax layer be full of cracks slit is fully absorbed by leather, need fixation treatment as used dyestuff, the leather after the extension cold is put into soaper, the size of groove one by one, be as the criterion with easy to operate, fixation liquid is prepared by normal process, temperature normal temperature, and fixation can go out groove in 5～10 minutes and hang cool, carry out dewaxing treatment after 30 minutes, fixation also can be carried out in rotary drum after dewaxing.

The 3rd step, dewaxing, dewaxing is based on mechanical dewaxing, organic solvent dewaxing is auxilliary, with crust leather to be dewaxed pack into fall fall in the soft rotary drum soft, under mechanism, the wax layer that adheres on the crust leather promptly comes off gradually, fell soft 10 minutes, this moment the crust leather surface attachment the wax layer major part come off, go out drum, the wax that will come off is recycled.Crust leather packed into once more fall soft rotation in the rotary drum and go out drum after 30 minutes, the wax that comes off reclaims, and at this moment, most of crust leather leather surface layer of waxing comes off basically; Can directly carry out rinsing, indivedual crust leather wax pull-ups fall only, and the person can take the organic solvent dewaxing, crust leather packed into one have in the agitator of constant-temperature enclosed device, the agitator size is decided according to the output needs, in container, add organic solvent (as raw gasoline, benzene, ether etc.) consumption of organic solvent then so that whole immersion of crust leather is as the criterion, temperature is controlled between 25 ℃～40 ℃, stirred 30 minutes, skin is taken out, packing into has in the airtight drier of liquid withdrawal system, and the solvent recovery that throws away is used; Dry and go out skin after 3 minutes, hang cool, dress drum, ease back, with 40 ℃～65 ℃ hot water, dyeing finishes, and carries out repeatedly batik by above method conversion dye liquor color and just obtains multicoloured batik and remove from office.

Advantage of the present invention is the colored leather that can dye at same Zhang Ge contrast effect or multicolor effect, make and embody the moire with artistic effect on the leather, various informative, pattern is flexible, increase the designs and varieties of leather, improve the class of leather, enlarge the scope of application, be beneficial to the renovation of leather goods designs and varieties and the process that develops to fashion. Obtain multicoloured leather surface by dyeing and can take the dab decorations, can give full play to the characteristics of natural leather, show the sanitation performance that utilizes natural grain attractive in appearance and strong and leather uniqueness. In batch production, dye liquor can be recycled. Dyestuff absorptivity height reduces and pollutes, and equipment investment is few, and wax is recyclable, and expense is low.

Claims

1, leather wax dyeing method is a kind of method about leather coloring, comprise wax, dewaxing process, it is characterized in that: the leather base of first-class wax is immersed in the staining trough, bend out the be full of cracks lines.Treat that dye liquor takes out rapidly when moire is penetrated into leather surface.After the cool dye liquor to wax layered suture crack of extension is fully absorbed by leather, dewax.

2, leather wax dyeing method according to claim 1, it is characterized by: used wax can select for use paraffin, Chinese wax, beeswax, montanin wax wherein a kind of, after wax dissolves.Wax liquid temperature is controlled between 60 ℃-90 ℃.