CN104862983A - Production process of needle punched non-woven fabric composited with genuine leather scraps - Google Patents
Production process of needle punched non-woven fabric composited with genuine leather scraps Download PDFInfo
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Abstract
The invention relates to a production process of needle punched non-woven fabric composited with genuine leather scraps. The production process comprises steps as follows: (1), selection of polyester-nylon short fiber and the genuine leather scraps; (2) opening and cotton blending: raw materials are put into an opener for opening and blending; (3), carding: carding, impurity removal and blending are performed through a carding machine; (4), net laying: the raw materials are uniformly laid to form a fiber net with a certain thickness and width; (5) needle punching: pre-needle-punching, primary needle punching and surface trimming are included, and the fluffy and high-strength fiber net is subjected to needle punching from top to bottom for strengthening; (6), electrostatic flocking: the genuine leather scraps are uniformly sprayed onto the surface of the non-woven fabric with an electrostatic flocking technique; (7), ironing: the genuine leather scraps and the non-woven fabric are combined together through ironing. The process is simple, and the cost is low; the weight, the bursting strength, the tearing strength, the breaking strength and the like of the produced non-woven fabric composited with the genuine leather scraps all have very good effects; the product has the characteristics of breathability, moisture absorption, soft texture, vivid sueding effect and the like.
Description
Technical field
The present invention relates to a kind of production technology, especially relate to the production technology of a kind of corium bits needle punched non-woven fabrics.
Background technology
Real leather products has comfortable and easy to wear, and sense of touch is soft, and gas permeability is good, powerful good, after napping, also have the superiority such as special gloss, always by masses are liked.But because the animal life cycle is long, corium source is little, valency is expensive, adds the increase of the current ecological awareness, and the substitute artificial leather as corium more and more receives publicity.
Artificial leather take fabric as base usually, is coated with thereon or pastes one deck resin compound, and then heating makes it plasticizing, and through roll extrusion pressing or embossing, obtains product, is similar to natural leather, has softness, the feature such as wear-resisting.But, it is compared with corium, and artificial leather is easy to wearing and tearing, because producing harm containing a large amount of chemical raw material to health of human body, and the material such as the chemical reagent used in its process of manufacture can cause environmental pollution to a certain degree, the production of artificial leather is more and more subject to the restriction of each side.Although Chinese people fabricate-leather achieves certain development in the past few years, from industry on the whole, still there is a lot of problem, the manufacturing enterprise's Environmental Protection Level as small scale is poor, pollution is heavy, added value of product is low, innovation ability is not enough.
In recent years, widely using of fast development of nonwoven techniques and products thereof, makes nonwoven product dominate the market gradually.Non-weaving cloth directly utilizes high polymer section, staple fibre or long filament that fiber is become net by air-flow or machinery, then reinforces through water thorn, acupuncture or hot rolling, eventually pass the cloth without braiding of Final finishing formation.There is protection against the tide, ventilative, pliable and tough, light weight, the advantage such as to use again capable of circulation.
Non-weaving cloth, along with the development of new technology, new material, new compound and process technology, has function and multi-functional new product continues to bring out out, to meet the various demands of application market.
Summary of the invention
The invention provides a kind of production technology with the corium bits needle punched non-woven fabrics of premium properties, the present invention is tested by innovation research, the corium bits needle punched non-woven fabrics produced has the anti-suede effect of corium, greatly reduces the use amount of corium, can replace corium completely, reduce ecological disruption, reduce pollution in leather industry, its corium bits adopt the leftover pieces of corium, and corium leftover pieces are pulverized recycling simultaneously, achieve twice laid, reduce production cost.
A production technology for corium bits needle punched non-woven fabrics, comprises the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing;
(3) combing: carry out a point comb, removal of impurities, mixing by carding machine;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology;
(7) plate: by plating, corium is considered to be worth doing and combine with nonwoven fabric.
The raw material choose of corium bits needle punched non-woven fabrics washs bright and beautiful short fiber and corium bits, and the staple fibre of terylene, polyamide fibre mixes according to certain ratio, makes the nonwoven fabric of production obtain certain brute force and even to brute force in length and breadth, and feel is even.Wherein the number of polyamide fibre short fiber content has an impact to the brute force, hardness etc. of producing nonwoven fabric.As preferably, in step (1), wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 80 ~ 90%, polyamide fibre 10 ~ 20%; Described corium bits are obtained after being pulverized by corium leftover pieces.Washing bright and beautiful short fiber can make nonwoven fabric obtain good physical property, utilize corium leftover pieces to pulverize obtained corium bits and be bonded in nonwoven surface, both obtained the anti-suede effect of corium, made again the corium leftover pieces abandoned obtain recycle, save cost, decrease ecological disruption.
Washing bright and beautiful short fiber makes each composition of short fiber mix by shredding mixed cotton, and only have well-mixed short fiber, the physical properties such as the brute force of guarantee product reach requirement, and are conducive to carrying out smoothly of follow-up each operation; Abundant mixed short fiber, through carding machine, carries out a point comb, removal of impurities, mixing.As preferably, in step (3), control mixed and disorderly than being 1:1.2 ~ 2.2.If mixed and disorderly ratio is grasped bad, the fibroreticulate uniformity will be damaged, and in a jumble than excessive, fiber web can be caused bulk, and structure is not compact.
As preferably, in step (3), the superficial velocity of drum cylinder is 800 ~ 900m/min.In carding process, control the speed of drum cylinder, fiber combing is critical process into the net, mixed for shredding fibre bundle is carded to the thin net of filament composition, becomes net for laying; Due in whole non-fabrication thing, the steadiness of intensity and fiber is all produced by Filament-wound Machine, therefore, different equipment, different cylinder speeds, and for different raw materials, different technological parameters, should have very large difference in colthing configuration.
As preferably, in step (4), the lapping number of plies is 9 ~ 11 layers, and lapping speeds control is at 0.7 ~ 0.9m/min.
As preferably, in step (5), one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 660 ~ 700 thorns/minute, pin is 11 ~ 13mm deeply; Main acupuncture one pin be frequently 800 ~ 900 thorns/minute, pin is 8 ~ 12mm deeply, main acupuncture two pin be frequently 800 ~ 900 thorns/minute, pin is 6 ~ 10mm deeply, main acupuncture three pin be frequently 800 ~ 900 thorns/minute, pin is 4 ~ 8mm deeply, main acupuncture four pin be frequently 800 ~ 900 thorns/minute, pin is 4 ~ 6mm deeply; Pin of having a shave frequently be 850 ~ 950 thorns/minute, pin is 2 ~ 4mm deeply.Acupuncture is the shaping key link of nonwoven fabric, and acupuncture production technology is main is that reasonable distribution needling density and the strict pin that controls are spent deeply, and the good stepping-in amount of reasonable adjusting, can reduce pin trace, choose reasonable needling density, can improve percentage elongation and the tearing strength of cloth; The dark too great Yi of pin makes fibrous fracture and is stung out, and form napping outward appearance, and present fish scale-shaped, intensity can decline; Meanwhile, conservative control punch frequency (pin frequently), can increase base cloth density, tearing brute force and ultimate strength.
As preferably, in step (6), flocking amount is 20 ~ 50g/m2, when adopting static flocking technology, applies one deck static flocking adhesive in nonwoven surface.Consider to be worth doing for making corium and be evenly sprayed at nonwoven surface, reach good simulated effect, have employed static flocking technology, first be coated with static flocking adhesive in nonwoven surface, the corium bits through certain electric treatment are made to produce polarization and electret and charged again under electrostatic field, make it through compound movements such as rotation, vibration, translations, finally do directed movement, rely on electric field force effect and implant the nonwoven surface scribbling adhesive; The obtained non-woven fabric back suede effect of static flocking technology is adopted to be really true to life.
As preferably, in step (7), pressing temperature is 150 ~ 170 DEG C.At the temperature that nonwoven fabric specifies at press, plate through ironing roller, the too low meeting of pressing temperature makes DeGrain, and the too high meeting of temperature causes damage to material.
As preferably, the production technology of described corium bits needle punched non-woven fabrics, comprises the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy: wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 85%, polyamide fibre 15%, the specification of washing bright and beautiful short fiber is 2.5D × 51mm, and corium bits are obtained after being pulverized by corium leftover pieces;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing; During mixing, control mixed and disorderly than being 1:1.5;
(3) combing: carry out removal of impurities, mixing by carding machine; The superficial velocity of drum cylinder is 850m/min;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width; The lapping number of plies is 10 layers, and lapping speeds control is at 0.8m/min;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom; Wherein, one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 680 thorns/minute, pin is 12mm deeply; Main acupuncture one pin be frequently 850 thorns/minute, pin be 10mm deeply, main acupuncture two pin be frequently 850 thorns/minute, pin be 8mm deeply, main acupuncture three pin frequency be 850 thorns/minute, pin is 6mm deeply, main acupuncture four pin frequency be 850 thorns/minute, pin is 5mm deeply; Pin of having a shave frequently be 900 thorns/minute, pin is 3mm deeply;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology; Wherein, flocking amount be 35g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface;
(7) plate: by plating, corium is considered to be worth doing and combine firmly with nonwoven fabric, pressing temperature is 160 DEG C.
Present invention process is simple, with low cost, produces and the fabric weight, bursting strength, tearing brute force, ultimate strength etc. that needle punched non-woven fabrics considered to be worth doing by the corium that obtain all reach good effect; Product has the features such as ventilative, moisture absorption, quality is soft, anti-suede effect is really true to life.
Detailed description of the invention
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention is not limited to this.
Embodiment 1
A production technology for corium bits needle punched non-woven fabrics, comprises the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy: wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 85%, polyamide fibre 15%, the specification of washing bright and beautiful short fiber is 2.5D × 51mm, and corium bits are obtained after being pulverized by corium leftover pieces;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing; During mixing, control mixed and disorderly than being 1:1.5;
(3) combing: carry out removal of impurities, mixing by carding machine; The superficial velocity of drum cylinder is 850m/min;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width; The lapping number of plies is 10 layers, and lapping speeds control is at 0.8m/min;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom; Wherein, one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 680 thorns/minute, pin is 12mm deeply; Main acupuncture one pin be frequently 850 thorns/minute, pin be 10mm deeply, main acupuncture two pin be frequently 850 thorns/minute, pin be 8mm deeply, main acupuncture three pin frequency be 850 thorns/minute, pin is 6mm deeply, main acupuncture four pin frequency be 850 thorns/minute, pin is 5mm deeply; Pin of having a shave frequently be 900 thorns/minute, pin is 3mm deeply;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology; Wherein, flocking amount be 35g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface;
(7) plate: by plating, corium is considered to be worth doing and combine firmly with nonwoven fabric, pressing temperature is 160 DEG C.
The product index of the corium bits needle punched non-woven fabrics prepared under above-mentioned process conditions is shown in Table 1:
Table 1
As seen from Table 1, produce and the fabric weight, bursting strength, tearing brute force, ultimate strength etc. that needle punched non-woven fabrics considered to be worth doing by the corium that obtain all reach good effect.
Embodiment 2
A production technology for corium bits needle punched non-woven fabrics, comprises the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy: wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 80%, polyamide fibre 20%, the specification of washing bright and beautiful short fiber is 2.5D × 51mm, and corium bits are obtained after being pulverized by corium leftover pieces;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing; During mixing, control mixed and disorderly than being 1:1.2;
(3) combing: carry out removal of impurities, mixing by carding machine; The superficial velocity of drum cylinder is 800m/min;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width; The lapping number of plies is 11 layers, and lapping speeds control is at 0.7m/min;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom; Wherein, one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 660 thorns/minute, pin is 11mm deeply; Main acupuncture one pin be frequently 800 thorns/minute, pin be 10mm deeply, main acupuncture two pin be frequently 800 thorns/minute, pin be 8mm deeply, main acupuncture three pin frequency be 800 thorns/minute, pin is 6mm deeply, main acupuncture four pin frequency be 800 thorns/minute, pin is 5mm deeply; Pin of having a shave frequently be 850 thorns/minute, pin is 3mm deeply;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology; Wherein, flocking amount be 50g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface;
(7) plate: by plating, corium is considered to be worth doing and combine firmly with nonwoven fabric, pressing temperature is 150 DEG C.
The product index of the corium bits needle punched non-woven fabrics prepared under above-mentioned process conditions is shown in Table 2:
Table 2
As seen from Table 2, although the effect such as fabric weight, bursting strength, tearing brute force, ultimate strength of the corium bits needle punched non-woven fabrics produced and obtain can reach requirement, the product that its effect is obtained not as embodiment 1 technique.
Embodiment 3
A production technology for corium bits needle punched non-woven fabrics, comprises the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy: wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 90%, polyamide fibre 10%, the specification of washing bright and beautiful short fiber is 2.5D × 51mm, and corium bits are obtained after being pulverized by corium leftover pieces;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing; During mixing, control mixed and disorderly than being 1:2.2;
(3) combing: carry out removal of impurities, mixing by carding machine; The superficial velocity of drum cylinder is 900m/min;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width; The lapping number of plies is 9 layers, and lapping speeds control is at 0.9m/min;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom; Wherein, one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 700 thorns/minute, pin is 13mm deeply; Main acupuncture one pin be frequently 900 thorns/minute, pin be 12mm deeply, main acupuncture two pin be frequently 850 thorns/minute, pin be 10mm deeply, main acupuncture three pin frequency be 850 thorns/minute, pin is 8mm deeply, main acupuncture four pin frequency be 850 thorns/minute, pin is 6mm deeply; Pin of having a shave frequently be 900 thorns/minute, pin is 4mm deeply;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology; Wherein, flocking amount be 20g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface;
(7) plate: by plating, corium is considered to be worth doing and combine firmly with nonwoven fabric, pressing temperature is 170 DEG C.
The product index of the corium bits needle punched non-woven fabrics prepared under above-mentioned process conditions is shown in Table 3:
Table 3
As seen from Table 3, although the effect such as fabric weight, bursting strength, tearing brute force, ultimate strength of the corium bits needle punched non-woven fabrics produced and obtain can reach requirement, the product that its effect is obtained not as embodiment 1 technique.
Meet the requirements to reach the corium bits needle punched non-woven fabrics every brute force produced, corium bits are evenly bonded in nonwoven surface, by repeatedly trial product, finally determine that the process conditions in the present embodiment 1 are more excellent process conditions.
Claims (9)
1. a production technology for corium bits needle punched non-woven fabrics, is characterized in that comprising the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing;
(3) combing: carry out a point comb, removal of impurities, mixing by carding machine;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology;
(7) plate: by plating, corium is considered to be worth doing and combine with nonwoven fabric.
2. the production technology of corium bits needle punched non-woven fabrics according to claim 1, is characterized in that: in step (1), washs terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 80 ~ 90%, polyamide fibre 10 ~ 20%; Described corium bits are obtained after being pulverized by corium leftover pieces.
3. the production technology of corium bits needle punched non-woven fabrics according to claim 1, is characterized in that: in step (3), controls mixed and disorderly than being 1:1.2 ~ 2.2.
4. the production technology of corium bits needle punched non-woven fabrics according to claim 1, it is characterized in that: in step (3), the superficial velocity of drum cylinder is 800 ~ 900m/min.
5. the production technology of corium bits needle punched non-woven fabrics according to claim 1, it is characterized in that: in step (4), the lapping number of plies is 9 ~ 11 layers, and lapping speeds control is at 0.7 ~ 0.9m/min.
6. the production technology of corium according to claim 1 bits needle punched non-woven fabrics, is characterized in that: in step (5), arrange one pre-needling, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 660 ~ 700 thorns/minute, pin is 11 ~ 13mm deeply; Main acupuncture one pin be frequently 800 ~ 900 thorns/minute, pin is 8 ~ 12mm deeply, main acupuncture two pin be frequently 800 ~ 900 thorns/minute, pin is 6 ~ 10mm deeply, main acupuncture three pin be frequently 800 ~ 900 thorns/minute, pin is 4 ~ 8mm deeply, main acupuncture four pin be frequently 800 ~ 900 thorns/minute, pin is 4 ~ 6mm deeply; Pin of having a shave frequently be 850 ~ 950 thorns/minute, pin is 2 ~ 4mm deeply.
7. the production technology of corium bits needle punched non-woven fabrics according to claim 1, it is characterized in that: in step (6), flocking amount is 20 ~ 50g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface.
8. the production technology of corium bits needle punched non-woven fabrics according to claim 1, it is characterized in that: in step (7), pressing temperature is 150 ~ 170 DEG C.
9. the production technology of corium bits needle punched non-woven fabrics according to claim 1, is characterized in that comprising the steps:
(1) bright and beautiful short fiber and corium bits are washed in apolegamy: wash terylene in bright and beautiful short fiber, polyamide fibre mixing ratio is terylene 85%, polyamide fibre 15%, the specification of washing bright and beautiful short fiber is 2.5D × 51mm, and corium bits are obtained after being pulverized by corium leftover pieces;
(2) shredding mixed cotton: raw material is put into opener and carries out shredding, mixing; During mixing, control mixed and disorderly than being 1:1.5;
(3) combing: carry out removal of impurities, mixing by carding machine; The superficial velocity of drum cylinder is 850m/min;
(4) lapping: uniform laying becomes the fiber web of certain thickness and width; The lapping number of plies is 10 layers, and lapping speeds control is at 0.8m/min;
(5) acupuncture: be divided into pre-needling, main acupuncture and have a shave, consolidates the fluffy and fibre web of brute force acupuncture from top to bottom; Wherein, one pre-needling is set, four main acupunctures, has a shave for one, the pin of pre-needling be frequently 680 thorns/minute, pin is 12mm deeply; Main acupuncture one pin be frequently 850 thorns/minute, pin be 10mm deeply, main acupuncture two pin be frequently 850 thorns/minute, pin be 8mm deeply, main acupuncture three pin frequency be 850 thorns/minute, pin is 6mm deeply, main acupuncture four pin frequency be 850 thorns/minute, pin is 5mm deeply; Pin of having a shave frequently be 900 thorns/minute, pin is 3mm deeply;
(6) corium bits are evenly sprayed at nonwoven surface by electrostatic spinning: utilize static flocking technology; Wherein, flocking amount be 35g/m
2, when adopting static flocking technology, apply one deck static flocking adhesive in nonwoven surface;
(7) plate: by plating, corium is considered to be worth doing and combine firmly with nonwoven fabric, pressing temperature is 160 DEG C.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401334A (en) * | 2016-01-04 | 2016-03-16 | 福建省天连化纤织造有限公司 | Preparation method of needle punched non-woven fabric |
| CN109811467A (en) * | 2019-01-23 | 2019-05-28 | 平阳盛兴无纺布有限公司 | A kind of imitation inner leather |
| CN113186645A (en) * | 2021-04-28 | 2021-07-30 | 上海沥高科技股份有限公司 | Demoulded breathable felt and preparation method and application thereof |
| CN114232355A (en) * | 2021-12-22 | 2022-03-25 | 山东同大海岛新材料股份有限公司 | Preparation method of superfine fiber synthetic leather and superfine fiber synthetic leather |
| IT202100009206A1 (en) | 2021-04-13 | 2022-10-13 | Chiorino Tech S P A | NON-WOVEN FABRIC FROM WASTE OF TANNED LEATHER AND METHOD FOR ITS PRODUCTION |
-
2015
- 2015-05-22 CN CN201510264979.8A patent/CN104862983A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401334A (en) * | 2016-01-04 | 2016-03-16 | 福建省天连化纤织造有限公司 | Preparation method of needle punched non-woven fabric |
| CN109811467A (en) * | 2019-01-23 | 2019-05-28 | 平阳盛兴无纺布有限公司 | A kind of imitation inner leather |
| IT202100009206A1 (en) | 2021-04-13 | 2022-10-13 | Chiorino Tech S P A | NON-WOVEN FABRIC FROM WASTE OF TANNED LEATHER AND METHOD FOR ITS PRODUCTION |
| WO2022219484A1 (en) * | 2021-04-13 | 2022-10-20 | Chiorino Technology S.P.A. | Dry methods for producing a nonwoven fabric from tanned leather waste |
| CN113186645A (en) * | 2021-04-28 | 2021-07-30 | 上海沥高科技股份有限公司 | Demoulded breathable felt and preparation method and application thereof |
| CN114232355A (en) * | 2021-12-22 | 2022-03-25 | 山东同大海岛新材料股份有限公司 | Preparation method of superfine fiber synthetic leather and superfine fiber synthetic leather |
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