CN1117433A - Imitation leather structure with nap like surface - Google Patents

Abstract

The invention relates to a kind of imitation leather which is comprised of fibrous fine hair or surface processed (printed) upper layer, The middle layer made of foamed soft PVC compound, and the base layer under the foam layer. And its appearance and feel impression is most like imitation ground true leather (NU-BUCK).

Description

The surface has the imitation leather structure of velvet

Flour milling corium (NU-BUCK) product is extensively to be received by the market the leather of liking, and the scope of application is very extensive, liked by the popular institute of the producer and consumption; But owing to cost an arm and a leg, the artificial synthetic leather producer all constantly researches and develops sharpening face corium (NU-BUCK) goods to replace it.Because of the existing market product outer to plant hair, modes such as grinding and surface conditioning agent processing are produced, and its outward appearance, quality is corium (NU-BUCK) difference to some extent still therewith, so industry is urgently thought to break through, but really can't reach, the applicant is ardent day by day in view of the demand in market, then bet a large amount of research staff and fund, constantly research and development improve, and utilization is planted mao raw material-fibre fluff as the part of prescription and the improvement of grinding technology, the long-pending more than two decades of applicant is at the manufacturing experience of artificial synthetic skin, finally finish the dark tool utmost point of the present invention like the true texture of flour milling corium, yet and reach in appearance and present on the sense of touch from careful velvet emulation leathercraft.

Generally commonly use the flour milling emulation skin (practise and claim " SUMELON LEATHER ") of planting hair, because of performance and flour milling corium on prepared finished product rerum natura of procedure for producing and outward appearance sense of touch still have one section gap, especially plant batt on the surface and still have the problem that ABRASION RESISTANCE is bad and be easy to lose hair or feathers, so also not satisfactory on practicality; Now its tradition of division commonly uses that processing procedure is following to be shown now:

1. generally plant a mao SUMELON LEATHER manufacturing installation description of contents:

(1) lathering machine: the base fabric that is the desire use is generally with rayon (RAYON) flat fabric, and polyester/rayon (POLYESTER/PAYON) blending flat fabric or nylon loop, knitted cloth, non-woven etc. use and stick with paste wheel on the 30-120 purpose, and last paste amount is 50 ± 20g/m ²Through 120 ± 40 second process time and 150 ± 30 ℃ of processing temperature heating, dryings, batch and form paste cloth, wherein employed raw material is based on paste (solvent paste, aqueous paste, plastic paste, PU stick with paste).

(2) adhesive tape machine: raw materials such as polyvinyl chloride resin, plasticizer, stabilization agent, pigment or blowing agent are added homogenizer, through 1800 ± 300RPM, 90 ± 20 ℃ add thermal agitation 2-6 minute after, ten thousand horsepowers of machines are through 160 ± 20 ℃ * 2-4 minute mixing gel, pass on into two-wheel running roller machine, the gap is that 12 ± 4m/m temperature is controlled 140 ± 20 ℃ of insulations in order to control adhesive tape machine material stock, and is incubated in order to processing, and each wheel of adhesive tape machine body remains on 160 ± 20 ℃; And its thickness, width are adjusted according to trimmed size, and the width of generally fitting is for sticking with paste the cloth width and deduct the 1-2 inch or adding between the 3-5 inch for finished width.

(3) foaming machine: control this machine Duan Ge district temperature, general foaming machine decompose in order to blowing agent between 180-250 ℃ and PVC layer and base fabric between now control, make paste that leading portion is gone up (solvent paste and plasticizer) carry out gel; Or PU sticks with paste and to carry out crosslinkedly, improves the peel strength (between PVC layer/base fabric) of control finished product, and foaming machine is mainly control semi-finished product thickness.

(4) feather planting machine: utilize electrostatic field strength to make fine hair insert planting in mao paste that this machine leading portion is coated with, guarantee fine hair now and closeness.

The voltage of general electrostatic field is 8 ± 20,000 volts, and institute uses plants a mao paste and can be water-based acryl paste or PU paste, and on the paste amount be 110 ± 30g/m ², can get normal quality product.

(5) inspection machine: the package finished product after the leading portion processing is carried out finished product classification through the product examine personnel according to quality of finished inspection regulation in this machine section, reject defective products according to order contents branch, block, pack and indicate and be finished product (as accompanying drawing one).

Shortcoming according to above-mentioned located by prior art manufactured goods outlines as follows:

1. no matter tradition " SUMELON LEATHER " rubber goods still do not have the sense of reality than flour milling corium (NU-BUCK) with regard to outward appearance, sense of touch, velvet, rerum natura.

2. product surface fine hair tack is relatively poor, or because of mantle friction generation depilation phenomenon.

3. desirable not to the utmost because of the performance of goods rerum natura, ABRASION RESISTANCE is relatively poor, is easy to produce the flaw phenomenon on the sole converted products so be applied to penetrate, and its processability is difficult to promote.

Goods of the present invention are because of the superior rerum natura of tool, and the more advantages of goods tool than located by prior art illustrate that now manufacturing process of the present invention is as follows:

1. the explanation of apparatus of the present invention content: (as accompanying drawing three)

(1) lathering machine: be that goods base fabric A. commonly used has rayon (RAYON) flat fabric, polyester/rayon (POLYESTER/RAYON) blending non-woven, polyester/cotton (POLYESTER/COTTON) flat fabric or nylon loop and knitted cloth or polyester (POLYESTER) and polyester/cotton (rayon) (POLYESTER/COTTON (POYON)), the non-woven of nylon (NYLON) is main, selects suitable cloth to use according to the suitable property of finished product purposes; And desire to make the purpose of base fabric and polyvinyl chloride resin mixture adhesion one, use generally that solvent is stuck with paste, plastic paste is the master, this processing procedure with use these two kinds of pastes and be used in stick with paste on the 30-120 purpose wheel on it paste amount be 50 ± 20g/m ², and through 50 ± 30 ℃, 120 ± 40 seconds dryer section coils into a back and uses for the adhesive tape machine applying.

(2) adhesive tape machine: adopt fibre fluff through special treatment (being generally three kinds of cotton, rayon and nylon) after Electrostatic Treatment, to add in the lump among the high-speed mixer B (being commonly called as HENSCHEL MIXER) with polyvinyl chloride resin mixture (containing polyvinyl chloride resin, plasticizer, stabilization agent, pigment etc. in addition), through fully stirring, plasticizer is adsorbed fully by polyvinyl chloride resin, wait reach dry and soft state after, blowdown changes ten thousand horsepowers of machine C over to, through adding hot milling to reach the gel state, change two-wheel immediately over to and roll turbine insulation material controlling, multiple through conveyer belt input adhesive tape machine body D.; Behind moulding, control thickness and width, the product material is fitted with the paste cloth of lathering machine (1), the stirring of general high-speed mixer B is 1800 ± 300RPM and bestows 90 ± 20 ℃ of processing temperatures of 2-6 minute, and ten thousand horsepowers of machine C processing conditions are 160 ± 20 ℃ of processing temperatures bestowing 2-4 minute; The gap that two-wheel rolls turbine is 140 ± 20 ℃ at 12 ± 4m/m and processing temperature; Adhesive tape machine body D temperature remains on 160 ± 20 ℃, and desired thickness and width are adjusted according to finished product thickness, width, and it is scope that width reduces the 1-2 inch with the width of base fabric.

(3) foaming machine: the main purpose of this device is that the blowing agent in the batching is decomposed, generally based on azodicarbonamide (AZO-DICARBON AMIDE), through high temperature blowing agent is decomposed, the used decomposition temperature of blowing agent is 200 ± 2 ℃, general industry is produced speed for improving, and it is best in 180-250 ℃ of scope that the foaming furnace temperature is controlled at more than 200 ℃ more.

The semi-finished product that adhesive tape machine (2) is fitted change this device back over to and make the blowing agent decomposition according to each control processing temperature of body of heater between 180-250 ℃ in addition, semi-finished product thickness is thickened to establishing fix one's aim, the foaming back applies pressure to finished surface control finished product thickness and reaches uniformity with embossed wheel.

(4) grinder: this device main purpose is control finished surface suede degree, adopt sand (cloth) the paper E of various order numerical value according to the finished product design, generally between the 100-500 order, and the sand paper below 100 orders (not containing) is too coarse because of surface particles, to influence finished surface, and can't make NU-BUCK of the present invention produce level and smooth sense so will not adopt.

(5) printing treatment machine: this device main purpose is that a. utilizes printing effect, the double-colored third dimension of assembled watch mask.B. use the cured finishing agent of suitable special cunning to reach surface smoothing, similar flour milling corium NU-BUCK effect.

(6) inspection machine: this device is a finished product QC terminal stage system with the finished product of leading portion printing processing apparatus (5) to this machine section, and the product examine personnel reject defective products according to the quality of finished standard, keep quality level, are finished product.(as accompanying drawing two)

Advantage of the present invention

1. the present invention more has real texture near flour milling corium (NU-BUCK) in outward appearance, sense of touch, velvet.

2. fine hair fastness spy is good, even the surface suffers slight abrasion, still has good fine hair sense, this be generally known " SUMELON LEATHER " rubber goods the characteristic of tool not.

3. have production in a large number, stay in grade, cutting easily, advantage such as loss is again little, not if essential about 30% loss of the proportion of goods damageds of natural leather, so the processer can be provided three times, replace natural leather, reduce cost, improve the economical and practical function of product competitiveness and tool.

4. all more generally to plant hair " SUMELON LEATHER " rubber be good (shown in following subordinate list one) to the various rerum naturas of the present invention, and because ABRASION RESISTANCE is superior, be fit to processing purposes such as footwear, gloves, suitcase, leather trunk, clothing class, decoration, has wide range of applications, and utility function is good.

Subordinate list:

Tool velvet emulation skin of the present invention with generally plant a mao SUMELON LEATHER rerum natura intensity comparison sheet

The product category Interventions Requested		Generally plant a mao SUMELON LEATHER	New product of the present invention	The present invention is more excellent		Test method
							Numerical value	??％
				Tension intensity (kg/3cm)	??MD				????20.0	????40.0	??+20	??100	????JIS?K?6772
??CD	????17.0	????30.0	??+13			???76
					Elongation (%)		??MD	????15.0	????20.0	???+5	??33.3	????JIS?K?6772
??CD	????20.0	????20.0	???0	????0
						Tearing strength (Kg)	??MD	????2.0	????3.5	??+1.5	???75		????JIS?K?6772
??CD	????2.0	????3.5	??+1.5	???75
					Peel strength (kg/3cm)		??MD	????2.5	????2.5	???0	????0	????JIS?K?6772
??CD	????2.5	????2.5	???0	????0
						Rupture strength (kg/3cm)		????7.0	????16.0	??+9	???123		????ASTM?D?2210 ????JIS?K?6328
The matte scuff resistance (500g/cm * 100rpm)		In the wet type depilation 1cm	Wet type does not have depilation phenomenon	?+1cm	????10							JIS L 1084 S.S.A methods
						Penetrate then intensity (kg/3cm)		????1.5	????9.0	??7.5	???500		??JIS?K?6772

1. table system is with 1.2m/m * 36 inch $\frac{47\×47}{E/R20^{\′}S\×E/R{20}^{\′}S}$ Average thing value at the bottom of the material cloth relatively.

2. the every test rerum natura of tool velvet emulation skin of the present invention all is better than SUMELON LEATHER, be rooted in the Corvic mixture top layer because of fine hair again, so can be directly used in the ejection formation footwear, plant at present especially woolen only depend on plant mao paste with fine hair plant in finished surface can't reach.

Embodiment

Understand that for making technology contents of the present invention is as the how prescription and the proportioning of polyvinyl chloride (PVC) batch, and can make the imitation leather structure that a kind of surface of the present invention has velvet, now with following embodiment technology contents of the present invention is described, but is not to limit scope of the present invention with this.

Embodiment 1:

Stick with paste layer of cloth: with $\frac{88\×64}{E/R{45}^{\′}S\×E/R{45}^{\′}S}\×47$ The base fabric coating solvent of inch is stuck with paste (the last paste amount of viscosity 1800 ± 200cps 40 ± 5g/cm ²) in 130 ± 5 ℃ of furnace temperature down to fully the oven dry.

PVC cooperates the bed of material: with Corvic 100PHR, plasticizer 120PHR, stabilization agent 5PHR, pigment 8PHR, blowing agent 3PHR, 1.5D * prescriptions such as 0.5m/m rayon fine hair 30PHR, mixer be after 300 seconds, again through ten thousand horsepowers of machines press material, gel is complete.

With the above-mentioned binomial bed of material and PVC batch foaming applying bottom after 160 ± 5 ℃ of adhesive plaster wheel temperature are fitted down, send into foaming typing in foaming furnace 210-230 ℃ * 2 minutes, use 240 order sand paper wheels to grind back collocation printing in grinder, get final product the similar corium outward appearance in the wide surface of 42 inch, sense of touch is good and wear-resisting finished product.

Embodiment 2:

Stick with paste layer of cloth: with $\frac{42\×44}{E/R{20}^{\′}S\×E/R{10}^{\′}S}\×58$ Solvent is stuck with paste (the last paste amount of viscosity 2000 ± 200cps 45 ± 5g/cm in the primary coat of inch nylon loop ²) in 135 ± 5 ℃ of furnace temperature down to fully the oven dry.

PVC cooperates the bed of material: with Corvic 100PHR, and plasticizer 100PHR, stabilization agent 5PHR, pigment 6PHR, prescriptions such as blowing agent 2PHR and rayon fine hair 40PHR after mixer mixes 320 seconds, press through ten thousand horsepowers of machines and expect that gel is complete.

Bottom is pasted in the foaming of the above-mentioned binomial bed of material and PVC batch after adhesive tape machine is fitted, deliver to foaming furnace 210-245 ℃ * 2 minutes foaming and settings of heating, use 120 order sand paper (cloth) wheel to grind in grinder, the employed rayon fine hair of present embodiment, after grinding, get final product the finished product of width 54 inch tool fine hair sense of touch outward appearances.

Embodiment 3:

With what dye $\frac{4.7\×47}{E/R{20}^{\′}S\×E/R{20}^{\′}S}\×58$ The E/R flat fabric of inch is coated plasticizer (viscosity 2800 ± 200cps, last paste amount 42 ± 5g/cm ²) stick with paste layer of cloth completely in 165 ± 5 ℃ of furnace temperature down to oven dry and (wherein contain Corvic 100PHR with the PVC batch bottom that does not add rayon fine hair, the plastic agent 80PHR that moulds, stabilization agent 5PHR, pigment 6PHR, blowing agent 3PHR), after batch did not contain the intermediate layer (for not foaming layer) of blowing agent, with the Corvic batch (it is the same to fill a prescription) of the fibre-bearing fine hair 20PHR of superficial layer, row was fitted again.Behind 210-235 ℃ * 2 minutes foaming and settings, use 240 order sand paper (cloth) wheel to grind, and the collocation print wheel print off the corium decorative pattern, promptly get the good finished product of width 54 inch sense of touch transitivities.

Description of drawings:

Fig. 1: generally commonly use the flour milling imitation leather structure of planting hair:

(1) bottom cloth layer.

(2) foam polyvinyl chloride layer (practise and claim bed material).

(3) polyvinyl chloride non-foam layer (practise and claim that lining is the real bed of material).

(4) plant hair and stick with paste layer.

(5) tapetum.

Fig. 2: surface of the present invention has the imitation leather structure of velvet: (1) bottom cloth layer.(2) contain fine hair polyvinyl chloride batch foamed bottom layer.(3) printing, surface-treated layer.(4) tapetum.Fig. 3: surface of the present invention has the emulation leather manufacturing apparatus figure of velvet: (1) lathering machine.

A. base fabric.(2) adhesive tape machine.

B. mixer.

C. ten thousand horsepowers of machines.

D. adhesive tape machine body.(3) foaming machine.(4) grinder.

E. sand paper (cloth).(5) printing treatment machine.(6) inspection machine.

Claims (3)

1. imitation leather structure that the surface has velvet, it is characterized in that selecting the rayon flat fabric for use for the base fabric series of strata by (1) orlop, polyester/rayon blending flat fabric, polyester/cotton flat fabric or nylon loop and knitted cloth or polyester and polyester/cotton (rayon), non-wovens such as nylon; (2) contain fine hair polyvinyl chloride batch foamed bottom layer; (3) print surface processing layer; (4) the superiors are tapetum series fiber fine hair; Wherein its prescription of polyvinyl chloride batch comprises fibre fluff 1-40PHR, Corvic 100PHR, and plasticizer 40-120PHR, stabilization agent 1.5-5PHR, pigment 2-30PHR, blowing agent 1.5-6PHR raw materials etc. constitute.

2. surface according to claim 1 has the imitation leather structure of velvet, it is characterized in that use therein fibre fluff can contain three kinds of rayon (RAYON), nylon (NYLON) and natural cotton (COTTON), its specification is the red Buddhist nun of 0.3-5, the length scope at 0.3-3m/m.

3. surface according to claim 1 has the imitation leather structure of velvet, it is characterized in that wherein the fine hair series of strata mix according to its prescription fibre fluff and polyvinyl chloride batch through mixer, manufacturing process such as ten thousand horsepowers of machine gels and grinder attrition process are handled and are formed abrasion performance well and the high imitation leather structure that penetrates now intensity of tool.