CN1048532C - Method for manufacturing garment lining and stable fibrous lining produced therefrom - Google Patents

Abstract

A method of manufacturing a garment interlining material. The method comprises the following steps: forming a synthetic fiber lap, spraying or coating a layer of thermoplastic resin on the lap, heating the thermoplastic resin and the synthetic fiber on the lap, and performing hot calendering treatment once or more times on the lap to form a lining belt with a specified thickness.

Description

Method for manufacturing garment lining and stable fibrous lining produced therefrom

The present invention relates to a method of making garment lining (or called wadding, the same below) and a more stable fiber lining produced by the method, which is specially designed to make lining clothes and bedding.

As we all know, for the manufacture of sportswear and winter clothes, interlinings are now used, and the structure of this interlining can be improved by knitting, but this operation is expensive, and the garments produced are not dense enough to prevent the fibers from coming out. stick out of the fabric.

In addition, because the existing lining is bulky, the garments produced are unattractive.

In addition, the original lining cannot achieve high thermal insulation properties with a relatively suitable thickness after being processed by a knitting process.

For the above reasons, even if the existing linings are processed through the above-mentioned knitting, they are not widely used to make sportswear, winter clothes, boots and quilts.

Chinese patent application publication CN 86100722A discloses a kind of elastic wadding and its production process of melt-blown bonding. It combines the existing two processes of surface spray bonding and internal hot-melt bonding, so that the produced cotton has the advantages of the above two processes. However, this technique still cannot well control the thickness of the cotton wool produced as required, and the mechanical strength and surface quality of the cotton wool are not satisfactory.

The main object of the present invention is to propose a method of manufacturing a fibrous lining for clothing which is relatively light in weight, has good mechanical strength for repeated washing operations and wearing in a relatively small thickness range, and prevents the fibers from The fiber gusset sticks out.

Within the scope of the above-mentioned aims, the main object of the present invention is to provide a garment lining which, even when subjected to strong mechanical stress, or repeated washing operations, whether washed or dry-cleaned, has a high Non-deformable properties.

Another object of the present invention is to provide such an improved garment lining which has good thermal insulating properties.

In order to achieve the above object, the present invention provides a method for manufacturing clothing lining, which includes the steps of providing synthetic fiber rolls and coating thermoplastic resin on the above-mentioned rolls, characterized in that the method also includes the following steps: preheating the above-mentioned thermoplastic resin and synthetic fibers on the said wool roll, and subjecting the above-mentioned wool roll to one or more calendering treatments, the one or more calendering treatments being carried out using upper and lower rollers, wherein the above-mentioned rollers have the same or different temperatures, thereby preventing the above-mentioned fibers from protruding from the above-mentioned resin-coated nap and providing a lining of a predetermined thickness. In another aspect, the present invention also provides an improved garment lining obtained by the above method, said lining comprising a lap of thermoplastic fibers having a gas-permeable film or grid on at least one of the two outer surfaces of the lap. A lattice structure, said film comprising fibers directly welded to each other, said fibers interconnected by a heat-melt resin, characterized in that said fibers are calendered to prevent said fibers from protruding from said pile.

Specifically, the method of the present invention includes the step of forming a nap made by mixing synthetic fibers or natural fibers, or synthetic fibers and natural fibers, with a hot-melt adhesive by using a carding machine.

When these adhesives enter the hot calendering operation step, after proper heat melting, they will form a very good elastic structural film or screen, because the synthetic fibers forming the lining also have a surface thermal melting effect, so they can be This structured film or screen is obtained on one or more surfaces of the nap.

Specifically, the present invention provides the step of forming a film or grid (or mesh) structure on one or more surfaces of the nap, these films or grid structures comprising a plurality of heat-fusible fibers that can be bonded to the fibers. The adhesive pellets are preferably so-called hot-melt adhesive pellets.

These adhesive films or adhesive particles can form a grid only on the outer layer of the nap, or can also form a grid on the middle layer and (or) the innermost layer at the same time.

The method of the present invention also includes the processing step of subjecting the above-mentioned processed wool to hot calendering, and this hot calendering step is performed between suitably heated rollers of the calender.

The above-mentioned calender rolls must be controlled at an operating temperature of 80°C to 250°C.

The calendering operation step is preceded by a preheating step of fibers, said fibers preferably being made of polyester material, or comprising other suitable synthetic fibers, which are gathered or collected so as to form said laps.

The heat calendering step described above will heat set the outer synthetic fibers of the lap, thereby preventing the fibers from protruding from the fabric.

Linings are thus obtained which have a great or comparatively great thickness, depending on the duration of the hot calendering operation and on the pressure and temperature of the calender rolls.

Obviously, the thickness of the resulting lining also depends on the hot melt resin added and the amount of resin added.

Obviously, the thickness of the starting roll will vary within the desired thickness value range, and its variation may be minimal, depending on the amount of hot-melt substance or hot-melt adhesive added. The agent is preferably added to the roll by spraying or coating, and the thickness will also be strongly affected by the processing temperature of the calendering cylinder.

In order to obtain the desired temperature, the calender rolls are equipped with heating resistors, or filled with heating oil or other fluids suitable for heating, thereby being controlled within a very accurate temperature range.

In addition, instead of adding resin to the polyester fiber, polyester or other resin fiber coated with polyvinyl chloride (PVC) film or other thermoplastic material film can be used. melt.

The synthetic fiber roll is passed between the two heating rollers of the calender, and the hot-melt resin mixture is coated on the fibers of the above-mentioned roll, thereby forming a layer of thermal insulation material, which will have a reduced thickness, and forms a film or perspiration-wicking grid structure on its two major surfaces and prevents fibers from sticking out of the fabric.

The garment lining has high dimensional and structural stability and forms a layer of thermally insulating material that is highly resistant to mechanical stress from wearing and repeated washing operations (whether dry cleaning or water washing). Strength of.

According to the detailed description of some of the following preferred embodiments, these characteristics and other characteristics of the improved lining material used in the field of clothing of the present invention can be more clearly described, and the characteristics of the thickness reduction of the lining material obtained by the above-mentioned method, these Embodiment is described with accompanying drawing, and embodiment is described as an example only, and is not limiting, and these accompanying drawings are:

Fig. 1 is a schematic side view of a spraying hot-melt resin system and a calender, the calender includes upper and lower heated calender rollers;

Fig. 2 is an enlarged side view showing that a synthetic fiber nap is reduced in thickness after being subjected to a resin coating operation step and a calendering operation step, and is formed into a mat having a reduced predetermined thickness and stable fibers.

Figure 3 shows a variant of the method of manufacturing the lining in which the lining is calendered under reduced pressure so that its thickness does not substantially decrease, but it has stable outer fibers.

Referring now to the numbering of the accompanying drawings, the method of manufacturing a garment lining, thus obtaining an improved garment lining, has the operational steps of making a roll 1 of polyester fibers or synthetic fibers or natural fibers or their It is made of mixed fibers mixed with thermoforming resins or binders.

In particular, these adhesives or resins are preferably sprayed onto the rolls by means of suitable spraying devices 4 and 5 .

These spraying devices are preferably included in a continuous system schematically shown in Figure 1, which shows a roll 1, which is pre-wound, fed by a drum 1, and driven by a pair of drive motors. Driven rollers or drums 2 and 3 clamp the conveyance.

As mentioned above, a roll 1 of synthetic fibers is passed through a plurality of sprayers or coating rollers to spray or coat polyester fibers or synthetic fibers and/or Natural fibers on a roll.

The binder and resin are thermoplastic and are preferably passed through a preheating oven and/or drying oven, preferably comprising a tunnel or heat diffusion means 15 and 16, to preheat the fibers and then allow them to The fibers pass between heated calender rolls 6, 7, 8, 9, 10 and 11, the number of which can be selected as desired, some of which may be suitably refrigerated.

Under the effect of one or more calendering operations, the synthetic fiber nap sprayed or coated with a hot-melt adhesive or resin, as shown in Figure 2, will be formed into a smaller thickness.

Under the action of the calendering operation, these adhesives and resins will melt with appropriate heat and form a very permeable and elastic film or grid, which is placed on a lining made of wool rolls. Formed on one or more sides to prevent fibers from sticking out of the fabric.

More specifically, the method of the present invention also provides for the step of applying a heat-fusible film of adhesive or, preferably, pellets of the heat-melt type, to one or more sides of the roll.

Films or pellets of these adhesives impregnate either only the outer layer of the nap, or also the middle layer thereof.

Said method also stipulates the step of hot calendering treatment for the wool roll formed by the above processing, using the calendering cylinder of the calendering machine to perform the calendering treatment, and the above calendering cylinder is heated to a set temperature.

The above-mentioned calender rolls must be controlled to an operating temperature of 80°C to 250°C. A stabilizing refrigerated roll may also be used.

The above-mentioned calendering operation step is carried out after the heating operation step of heating polyester fibers or other plastic fibers, and the heating operation step is carried out in the heating tunnel or heating furnace shown in Figure 1, and the heating furnace includes diffusion devices 15 and 16 .

The above hot calendering operation steps will heat set the outer fibers of the lap.

A thermally insulating lining with the required small thickness is thus formed.

In particular, the lining thickness depends on the duration of the hot calendering process, on the pressure and temperature of the calendering equipment, and on the operating temperature of the preheating and/or drying ovens 15 and 16 .

The process of heating to melt the resin also affects the thickness of the resulting gusset.

It will be appreciated that the initial thickness of the lap 1 will vary depending on the amount of hot melt resin sprayed or applied, and the temperature and pressure of the calender rolls.

Specifically, these calender rolls are equipped with heating resistors, or are heated by heat transfer oil or other fluids, the temperature of which should be very accurately controlled.

As an alternative, it is also possible not to treat the polyester fibers with resin, but to use polyester fibers coated with a film consisting of polyvinyl chloride (PVC) or another thermoplastic material whose melting point is preferably below 150°C.

Thus, by passing a lap 1 of synthetic fibers coated with a heat-fusible adhesive mixture between two heated calender rolls, it is possible to obtain a thermally insulating backing strip of small thickness, and between its two A sweat-wicking film or lattice structure is formed on each major surface.

The perspiration film or grid structure has a high dimensional and structural stability, and also makes the insulating lining durable, resistant to mechanical stress washing stress, etc.

In fact, many of the outer synthetic fibers will partially heat melt and bond firmly to each other, thereby preventing the individual fibers making up the pile from separating from each other and protruding from the fabric.

In other words, the above-disclosed hot calendering method enables the synthetic fibers to be firmly bonded to each other, specifically, by simply heat-melting the above-mentioned fibers to bond them together.

Therefore, a fibrous material strip having excellent properties will be formed, the fibers of which will not be broken under the action of external stress even with a strong stress.

It is evident in this respect that the thermal melting of the parts and surfaces of the synthetic fibers constituting the nap of the set thickness can take place on one or both surfaces of the gusset.

Thus, the upper and lower calender rolls should be heated to the same temperature or to different temperatures in order to allow suitable differential thermal fusion of the fibers on the two major opposing surfaces of the backing web.

If greater softness of the lining is desired, only the upper or lower rollers of the calender are heated so that the thickness of the lining is reduced only slightly.

When the fibers need to be further stabilized, it is also possible to spray acrylic resin or polyurethane resin or vinyl resin on the roll, and these resins can be latex or soluble in solvents.

Specifically, if latex is used, the latex should be water-soluble latex, and if resin solution is used, esters, ketone, dimethylformamide, aromatic hydrocarbons, etc. can be used as solvents.

As mentioned above, the above resin is applied to the roll 1 either by coating, spraying or transfer.

Acrylic resins are most suitable for spraying, while vinyl resins are most suitable for coating and then drying. The drying step is carried out in the ovens 15 and 16.

Some resin solutions suitable for use in the present invention are described below as illustrative examples only.

Acrylic resin solution ingredients:

Paraloid BZ2 (Rohm&Haas company) 60ppm

Cellulose acetoacetate (Bayer company) 90ppm

Toluene 200ppm

Ethyl acetate 100ppm

Isobutyl acetate 100ppm

Total solids content 30%

Viscosity 5-10000cp

Solids content and viscosity must be controlled, if necessary, to values appropriate for the system being used.

Vinyl Resin Solution Ingredients:

Paraloid BZ2 (Rohm&Haas company) 100ppm

Polyvinyl acetate resin VyHH (Union Carbide company) 85ppm

Cellulose acetoacetate (Bayer company) 5ppm

Toluene 50ppm

Methyl ethyl ketone 150ppm

Ethyl acetate 20ppm

Isobutyl acetate 20ppm

Total Solids Content 33%

Viscosity 5—0000cp

Polyurethane resin solution composition:

Polyurethane resin (Larithane M132) 35ppm

(Polyester, Aromatic)(Larim S.P.A)

Dimethylformamide 64ppm

Total Solids Content 39%

Viscosity 80-120000cp

The lining is then calendered between the pairs of rollers 6, 7, 8, 9, 10, 11 at a temperature between 80-250° C. at a calendering speed of about 30 m/min in order to improve the appearance of the lining.

Then, according to the desired final thickness, the improved lining is subjected to one or more calendering steps at the same or higher temperature.

While the invention has been disclosed and described in terms of preferred embodiments, it will be apparent that modifications and variations of the disclosed embodiments can be practiced within the spirit and scope of the appended claims.

Claims (25)

1. method of making the clothes wadding, it comprises provides the synthetic fiber wadding of wool and the step of coated thermoplastic on above-mentioned wadding of wool, it is characterized in that, described method also comprises the following steps: above-mentioned thermoplastic resin and the synthetic fiber on the described wadding of wool of preheating, above-mentioned wadding of wool is carried out the one or many calendering to be handled, above-mentioned one or many calendering is handled and is utilized the upper and lower cylinder to carry out, wherein above-mentioned cylinder has identical or different temperature, thereby prevents that above-mentioned fiber from stretching and providing the wadding of predetermined thickness from the above-mentioned wadding of wool that is coated with resin.

2. according to the method for the described manufacturing clothes of claim 1 wadding, it is characterized in that, said method comprises the step that adopts carding operation to make wadding of wool, and wadding of wool comprises polyester fiber or synthetic fiber or natural fabric or their blended fiber, spraying hot-melt adhesive or resin material on wadding of wool.

3. according to the method for the described manufacturing clothes of claim 1 wadding, it is characterized in that, spray equipment is applied on the continuous system, in this system, wadding of wool around volume launches from a reel, and carry transmission secretly by a pair of cylinder by drive motor, make the synthetic fiber wadding of wool pass a plurality of spray equipments or apply cylinder, but these spray equipments or apply cylinder adhesive hot melt or heat fusing is sprayed or is coated on polyester fiber or synthetic fiber or the natural fabric.

4. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, but passing, the resin that makes above-mentioned hot melt has combustion flue and thermal diffusion device, the preheating furnace or the drying oven that are suitable for the above-mentioned fiber of preheating, make the calendering cylinder of the heating that above-mentioned fiber do not wait by number again, some of them calendering cylinder is refrigeration.

5. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, said method comprises the step of carrying out one or many calendering processing, spray wadding of wool in advance and have thin specific thickness so that make, and above-mentioned adhesive and fiber also melted by heat when carrying out calendering and handle, thereby on one or more surfaces of the above-mentioned wadding that forms by above-mentioned wadding of wool, form rubber-like perspire film or lattice structure, thereby can prevent that fiber from stretching from above-mentioned wadding.

6. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, but said method comprises the step of smearing the binder film or the heat molten type particle of one deck hot melt at least on a surface of above-mentioned wadding of wool.

7. the method according to the described manufacturing clothes of claim 6 wadding is characterized in that, the skin and the intermediate layer of above-mentioned adhesive film or the above-mentioned wadding of wool of impregnated with particles.

8. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method comprises that the calendering cylinder with heating carries out the step that calendering is handled to above-mentioned wadding of wool.

9. the method according to the described manufacturing clothes of claim 8 wadding is characterized in that, above-mentioned calendering cylinder is controlled in 80 ℃ to 250 ℃ operating temperature.

10. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method comprises the step of the above-mentioned wadding of wool of refrigeration roller process of having used stabilization.

11. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that above-mentioned preheating step carries out in heat tunnel or heating furnace, heat tunnel or heating furnace are positioned at the downstream of a plurality of sprayings or coating unit.

12. the method according to the described manufacturing clothes of claim 11 wadding is characterized in that, above-mentionedly adds the outer fiber heat setting that the hot calendering operating procedure makes above-mentioned wadding of wool.

13. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that above-mentioned calendering cylinder comprises heating resistor, or is filled with the hot fluid that adds that adds deep fat or other, its temperature is controlled with thermostat.

14. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method comprises using and scribbles polyester fiber or other plastic optical fibre that PVC film or other fusion temperature are lower than thermoplastic material's film of 150 ℃.

15. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method comprises with calender hot melt and bonding outer synthetic fiber, thereby prevents that fiber in the wadding of wool is separated from one another and stretch out this step from wadding of wool.

16. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, said method comprises such operating procedure, utilization is heated to the upper and lower calendering cylinder of uniform temp or different temperatures, make the synthetic fiber that constitute above-mentioned wadding of wool produce part ground surface heat fusing on the outer surface of above-mentioned wadding of wool or on two outer surfaces, thereby on above-mentioned two outer surfaces, form suitable different hot melt state.

17. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, if make soft wadding, then said method comprises and only heats the calender upper cylinder or only heat its underpart cylinder, thereby minimum degree ground reduces the step of above-mentioned wadding of wool thickness.

18. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, in the time will making more firm wadding of wool, said method is included in the outer surface spraying latex of above-mentioned wadding of wool, or spraying acrylic resin soln, or spraying polyurethane resin solution, or the step of spraying polyethylene resin solution.

19. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, as in said method, adopting latex resin, then above-mentioned latex resin is the APM gum resin, if adopt resin solution in said method, then the solvent as this resin solution can adopt ester class, dimethyl formamide and aromatic hydrocarbon etc.

20. method according to the described manufacturing clothes of claim 1 wadding, it is characterized in that, said method comprises such step: smear acrylic resin with spraying process, smear vinyl with cladding process, above-mentioned smearing step is carried out after heating furnace carries out dried.

21. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method comprises that use has the acrylic resin of following composition: Paraloid BZ2 (Rohm; Hass company) the total solids content 30% viscosity 5-10000cp of 60ppm acetobutyric acid cellulose (Bayer company) 90ppm toluene 200ppm ethyl acetate 100ppm isobutyl acetate 100ppm

22. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method adopts the vinylite with following composition:Paraloid BZ2 (Rohm; Hass company) the total solids content 33% viscosity 5-10000cp of 100ppm vinylite VyHH (Union Carbide company) 85ppm acetobutyric acid cellulose (Bayer company) 5ppm toluene 50ppm methyl ethyl ketone 150ppm ethyl acetate 20ppm isobutyl acetate 20ppm

23. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, said method adopts the polyurethane resin with following composition:

Polyurethane resin (Larithane M132) 35ppm

(polyesters, aromatic series) (Larim S.P.A)

Dimethyl formamide 64ppm

Total solids content 39%

Viscosity 80-120000cp

24. the method according to the described manufacturing clothes of claim 1 wadding is characterized in that, the calendering speed that above-mentioned calendering is handled is about 30m/min.

25. improved clothes wadding that utilizes the described method of claim 1 to obtain, above-mentioned wadding comprises the wadding of wool of thermoplastic fibre, on at least one outer surface of two outer surfaces of wadding of wool, have ventilated membrane or lattice structure, above-mentioned film comprises each other the directly fiber of welding, but above-mentioned fiber is interconnected by thermoplastic resin, it is characterized in that above-mentioned fiber lives through calendering and handles, and stretches from above-mentioned wadding of wool to prevent above-mentioned fiber.

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