CN202081226U - Elastic leather substrate - Google Patents

Abstract

The utility model discloses elastic leather substrate. Yarns formed through the blending of spandex/lycra and other fibers are used as warp yarns and weft yarns, the warp and the weft yarns are woven into elastic gray fabric, and the elastic gray fabric is produced into the leather substrate through dyeing and finishing; the width of the leather substrate ranges from 0.25mm to 0.30mm; and in terms of weight percentage, spandex accounts for 3-8% of each yarn, and other fibers account for 92-97% of each yarn. A method for preparing the elastic leather substrate includes the following steps: 1, an open-width dye jigger is used for desizing, scouring and dyeing, the desizing, scouring and dyeing temperature is 130 DEG C plus or minus 2 DEG C, and the desizing, scouring and dyeing speed is 95m/min plus or minus 2m/min; 2, the desizing method is bio-enzyme desizing, middle-temperature alpha-amylase is used as a bio-enzyme, and the proportions of materials in desizing are 2-10g middle-temperature alpha-amylase and 2-10g salt per liter of water; 3, an imported raising machine is used for raising, and the model no. is 92067-R2094; and 4, for the sizing of finished products, the temperature is controlled between 183 DEG C and 188 DEG C, and the sizing time is controlled within 30 seconds plus or minus 5 seconds.

Description

A kind of Stretch leather base cloth

Technical field

The utility model relates to textile field, is specifically related to the base substrates of leather goods such as artificial leather.

Background technology

The leather base cloth is the base substrates that is used for making dermatine, raising along with people's living standard, demand to leather wear is increasing, the quantity of natural leather can not satisfy people's demand far away, add the price of natural leather costliness, allow common wage-earners hang back again, therefore, inexpensive dermatine arises at the historic moment.

Dermatine enters Chinese market and has had decades, development along with the artificial leather technology, high-grade artificial leather (PU leather) substitutes the corium product fully, be widely used in footwear leather, luggage leather, sofa artificial leather etc., it also possesses the intensity above several times of natural leathers even tens times except characteristics such as the feel that possesses the corium product, gas permeability, add that it is inexpensive, therefore, be subjected to consumers in general's favor deeply.

High-grade artificial leather (PU leather) is polyurethane to be coated on the leather base cloth make, and therefore, the characteristic of base fabric directly has influence on the performance of PU leather; And traditional leather base cloth generally is to be processed through dyeing and finishing by textile, polyester-cotton blend grey cloth, and the elasticity of base cloth is all very low.

We can say at present no matter corium still is the PU leather, the elastic force of product all relatively poor (and thickness is thick) makes leather products exist defective to a certain extent, such as, the high tube boots of present fashion, the people that leg is thick just is difficult to buy the suitable boots of a pair of; For another example, the beautiful very difficult show of chaparajos goes out as body-building pants, the perfect stature of jeans women.

If leather has the elastic force as body-building pants, jeans, will be subjected to consumer's welcome, the women's that especially can obtain liking to be beautiful favor.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of Stretch leather base cloth, and the high-grade artificial leather (PU leather) with this leather base cloth is made has elastic performance preferably, and is comfortable and easy to wear, moulding effective.

The utility model is achieved through the following technical solutions:

A kind of Stretch leather base cloth adopts the yarn of the fiber blend of spandex or Lycra and other composition to be made into the elastic force grey cloth as warp thread, weft yarn, and grey cloth makes the leather base cloth after dyeing and finishing; The thickness of described leather base cloth is the 0.25-0.30 millimeter; By weight percentage, spandex content is 3-8% in the yarn, and the fiber of other composition is 92-97%.

The further improvement project of the utility model is that the fiber of described other composition is a viscose.

The utility model further improvement project is that described leather base cloth simultaneously has suede.

Prepare the method for above-mentioned a kind of Stretch leather base cloth, comprise the following steps:

(1) adopt the open width dye jigger to carry out destarch, kiering and dyeing, destarch, kiering, dyeing temperature are: 130 ± 2 ℃, speed is: 95 ± 2m/min;

(2) destarch mode is selected: adopt the biology enzyme destarch, biological enzyme formulation is middle temperature α-Dian Fenmei, destarch

In the proportioning of each material be: warm α-Dian Fenmei 2-10g in containing in every premium on currency, salt 2-10g;

(3) fluffing: adopt the fluffing of import raising machine, type is: 92067-R2094;

(4) finished product typing: temperature is controlled at 183-188 ℃, and shaping time was controlled at 30 ± 5 seconds.

Step (4) adopts type to be: the import raising machine fluffing of 92067-R2094, this equipment and homemade

Hair machine fluffing principle difference, have fluffing fine and smooth stable, strength loss is little, guarantee characteristics such as cashmere density.

Starch is a kind of height condensate of carbohydrate, is by two polysaccharides, polysaccharide and amylopectin

Constitute.Middle Wen α – amylase can change the starch internal structure, and starch viscosity is descended, and reaches the destarch requirement.SUKAMY-TX550 is the middle temperature α-Dian Fenmei that a kind of bacillus subtilis (Bacillus subtilis) produces through submerged fermentation, starch can be hydrolyzed into dextrin different in size and a spot of low molecule carbohydrate, glucose and maltose restriction endonuclease, thereby the viscosity of gelatinized corn starch is descended rapidly.

The index of weighing base cloth elasticity size is the base cloth elongation at break.

Elongation at break is meant when base cloth stretches effective graticule part (between two anchor clamps) length recruitment and initial effectively graticule percentage of (between two anchor clamps) length partly when breaking.

Elongation at break is an index of weighing base cloth toughness (elasticity).Have bigger elongation at break, certain unisexuality elongation is arranged, not brittle failure immediately when showing the base cloth stretch-proof.Therefore elongation at break is big more, and under the situation of equal pulling force, its elongation is big more, and elasticity is big more; Under the certain condition of percentage elongation, elasticity is big more, and the recovery capacity of base cloth is strong more.

?	Textile leather base cloth	The Stretch leather base cloth
			Ultimate strength (kg/10cm)	45	45
Elongation at break (%)	20	≥45
			Tear brute force (kg/5cm)	2	2
?	?	?

The utility model compared with prior art has following obvious advantage:

One, the percentage elongation of existing product is low, and product recovery is poor.And the elastic force of product of the present utility model is more than 2 times of existing product, has well solved the pliability of product.

Two, the leather boots made from the utility model, leather jacket, pure and fresh fashion, and warmth retention property, good permeability, comfortable and easy to wear.Especially be through on one's body the women, represented perfect stature of women and graceful makings more.

Three, the utility model adopts the open width dye jigger to carry out destarch, kiering and dyeing, can eliminate elastic filament and meet thermal contraction

Excessive and the phenomenon of crumpling.

Four, adopt the biology enzyme destarch, can reduce the yarn strength loss to greatest extent, and to the performance of fiber not

Can produce any influence (, can the brute force and the fibre property of yarn being impacted) if adopt the method for alkali destarch or oxidation destarch.

Five, leather base cloth of the present utility model not only has pliability preferably, and very thin thickness, is top grade

Artificial leather provides suitable base cloth.

Description of drawings

Fig. 1 is the utility model schematic diagram (The leather base cloth simultaneously is provided with suede )

The specific embodiment

Embodiment 1

The utility model adopts the yarn of spandex or Lycra and viscose fiber blending to be made into the elastic force grey cloth as warp thread, weft yarn, and grey cloth makes the leather base cloth after dyeing and finishing; The thickness of described leather base cloth 1 is 0.25 millimeter, and one side is provided with suede 2.By weight percentage, spandex content is 4% in the yarn, and the fiber of other composition is 96%.

Prepare the method for above-mentioned a kind of Stretch leather base cloth, comprise the following steps:

(1) adopt the open width dye jigger to carry out destarch, kiering and dyeing, destarch, kiering, dyeing temperature are: 130 ± 2 ℃, speed is: 95 ± 2m/min;

(2) destarch mode is selected: adopt the biology enzyme destarch, biological enzyme formulation is middle temperature α-Dian Fenmei, destarch

In the proportioning of each material be: warm α-Dian Fenmei 4g in containing in every premium on currency, salt 4g;

(3) fluffing: adopt the fluffing of import raising machine, type is: 92067-R2094;

(4) finished product typing: temperature is controlled at 183-188 ℃, and shaping time was controlled at 30 ± 5 seconds.

Embodiment 2

The utility model adopts the yarn of spandex or Lycra and viscose fiber blending to be made into the elastic force grey cloth as warp thread, weft yarn, and grey cloth makes the leather base cloth after dyeing and finishing; The thickness of described leather base cloth 1 is 0.26 millimeter, and one side is provided with suede 2.By weight percentage, spandex content is 5% in the yarn, and the fiber of other composition is 95%.

Prepare the method for above-mentioned a kind of Stretch leather base cloth, comprise the following steps:

(1) adopt the open width dye jigger to carry out destarch, kiering and dyeing, destarch, kiering, dyeing temperature are: 130 ± 2 ℃, speed is: 95 ± 2m/min;

(2) destarch mode is selected: adopt the biology enzyme destarch, biological enzyme formulation is middle temperature α-Dian Fenmei, destarch

In the proportioning of each material be: warm α-Dian Fenmei 5g in containing in every premium on currency, salt 5g;

(3) fluffing: adopt the fluffing of import raising machine, type is: 92067-R2094;

(4) finished product typing: temperature is controlled at 183-188 ℃, and shaping time was controlled at 30 ± 5 seconds.

Embodiment 3

The utility model adopts the yarn of spandex or Lycra and viscose fiber blending to be made into the elastic force grey cloth as warp thread, weft yarn, and grey cloth makes the leather base cloth after dyeing and finishing; The thickness of described leather base cloth 1 is 0.28 millimeter, and one side is provided with suede 2.By weight percentage, spandex content is 6% in the yarn, and the fiber of other composition is 94%.

Prepare the method for above-mentioned a kind of Stretch leather base cloth, comprise the following steps:

(1) adopt the open width dye jigger to carry out destarch, kiering and dyeing, destarch, kiering, dyeing temperature are: 130 ± 2 ℃, speed is: 95 ± 2m/min;

(2) destarch mode is selected: adopt the biology enzyme destarch, biological enzyme formulation is middle temperature α-Dian Fenmei, destarch

In the proportioning of each material be: warm α-Dian Fenmei 7g in containing in every premium on currency, salt 7g;

(3) fluffing: adopt the fluffing of import raising machine, type is: 92067-R2094;

(4) finished product typing: temperature is controlled at 183-188 ℃, and shaping time was controlled at 30 ± 5 seconds.

Claims (2)

1. Stretch leather base cloth, it is characterized in that: the thickness of described leather base cloth is the 0.25-0.30 millimeter.

2. a kind of Stretch leather base cloth as claimed in claim 1 is characterized in that: described leather base cloth simultaneously has suede.

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